CVE-2021-3760

A flaw was found in the Linux kernel. A use-after-free vulnerability in the NFC stack can lead to a threat to confidentiality, integrity, and system availability.

The Linux Kernel, the operating system core itself.

Security Fix(es):

An improper validation of an array index and out of bounds memory read in the Linux kernel s Integrated Services Digital Network (ISDN) functionality was found in the way users call ioctl CMTPCONNADD. A local user could use this flaw to crash the system or starve the resources causing denial of service.(CVE-2021-3896)

A flaw was found in the Linux kernel. A use-after-free vulnerability in the NFC stack can lead to a threat to confidentiality, integrity, and system availability.(CVE-2021-3760)

A flaw was found in the Linux kernel s CAPI over Bluetooth connection code. An attacker with a local account can escalate privileges when CAPI (ISDN) hardware connection fails.(CVE-2021-34981)

Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking in APQ8053, IPQ4019, IPQ8064, MSM8909W, MSM8996AU, QCA9531, QCN5502, QCS405, SDX20, SM6150, SM7150(CVE-2020-3702)

UAF in Android ION memory allocator.(CVE-2021-0929)

A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well.(CVE-2021-20322)

A flaw was found in s390 eBPF JIT in bpf_jit_insn in arch/s390/net/bpf_jit_comp.c in the Linux kernel. In this flaw, a local attacker with special user privilege can circumvent the verifier and may lead to a confidentiality problem.(CVE-2021-20320)

An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c.(CVE-2021-43389)

Use-after-free vulnerability in the Linux kernel exploitable by a local attacker due to reuse of a DCCP socket with an attached dccps_hc_tx_ccid object as a listener after being released.(CVE-2020-16119)

A flaw was found in the Linux kernel. A use-after-free vulnerability in the NFC stack can lead to a threat to confidentiality, integrity, and system availability.

This kernel update is based on upstream 5.10.78 and fixes at least the following security issues:

A use-after-free vulnerability in the NFC stack can lead to a threat to confidentiality, integrity, and system availability (CVE-2021-3760).

A flaw in the SCTP stack where a blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses (CVE-2021-3772).

A flaw heap buffer overflow in the Linux kernel's AMD Radeon graphics card driver was found in the way user writes some malicious data to the AMD GPU Display Driver Debug Filesystem (to the VGA sub-directory of the /sys/kernel/debug/ directory). A local user could use this flaw to crash the system or escalate their privileges on the system (CVE-2021-42327).

The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandles bounds checking (CVE-2021-42739).

A flaw was discovered in the cryptographic receive code in the Linux kernel's implementation of transparent interprocess communication. An attacker, with the ability to send TIPC messages to the target, can corrupt memory and escalate privileges on the target system (CVE-2021-43267).

An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c (CVE-2021-43389).

wireguard-tools are updated to 1.0.20210914.

For other upstream fixes, see the referenced changelogs.

This kernel-linus update is based on upstream 5.10.78 and fixes at least the following security issues:

A use-after-free vulnerability in the NFC stack can lead to a threat to confidentiality, integrity, and system availability (CVE-2021-3760).

A flaw in the SCTP stack where a blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses (CVE-2021-3772).

A flaw heap buffer overflow in the Linux kernel's AMD Radeon graphics card driver was found in the way user writes some malicious data to the AMD GPU Display Driver Debug Filesystem (to the VGA sub-directory of the /sys/kernel/debug/ directory). A local user could use this flaw to crash the system or escalate their privileges on the system (CVE-2021-42327).

The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandles bounds checking (CVE-2021-42739).

A flaw was discovered in the cryptographic receive code in the Linux kernel's implementation of transparent interprocess communication. An attacker, with the ability to send TIPC messages to the target, can corrupt memory and escalate privileges on the target system (CVE-2021-43267).

An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c (CVE-2021-43389).

For other upstream fixes, see the referenced changelogs.

The openSUSE Leap 15.2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2018-13405: The inode_init_owner function in fs/inode.c allowed local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID (bnc#1100416 bnc#1129735).
• CVE-2021-33033: The Linux kernel had a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value (bnc#1186109 bnc#1188876).
• CVE-2021-34556: An unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack (bnc#1188983).
• CVE-2021-35477: An unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store operation did not necessarily occur before a store operation that has an attacker-controlled value (bnc#1188985).
• CVE-2021-3655: Missing size validations on inbound SCTP packets may have allowed the kernel to read uninitialized memory (bnc#1188563 bnc#1192267).
• CVE-2021-3715: Fixed a use-after-free in route4_change() in net/sched/cls_route.c (bsc#1190349).
• CVE-2021-3760: Fixed a use-after-free vulnerability with the ndev->rf_conn_info object (bsc#1190067).
• CVE-2021-3772: Invalid chunks may be used to remotely remove existing associations (bsc#1190351).
• CVE-2021-3896: Fixed a array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c (bsc#1191958).
• CVE-2021-41864: prealloc_elems_and_freelist in kernel/bpf/stackmap.c allowed unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write (bnc#1191317).
• CVE-2021-42008: The decode_data function in drivers/net/hamradio/6pack.c had a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access (bnc#1191315).
• CVE-2021-42252: An issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c where local attackers were able to access the Aspeed LPC control interface could overwrite memory in the kernel and potentially execute privileges, aka CID-b49a0e69a7b1. This occurs because a certain comparison uses values that are not memory sizes (bnc#1190479).
• CVE-2021-42739: The firewire subsystem had a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled bounds checking (bnc#1184673 bnc#1192036).
• CVE-2021-42739: The firewire subsystem had a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled bounds checking (bsc#1184673).
• CVE-2021-43056: It allowed a malicious KVM guest to crash the host, when the host is running on Power8, due to an arch/powerpc/kvm/book3s_hv_rmhandlers.S implementation bug in the handling of the SRR1 register values (bnc#1192107).

The following non-security bugs were fixed:

• acpi/arm64: fix next_platform_timer() section mismatch error (git-fixes).
• ACPI: bgrt: Fix CFI violation (git-fixes).
• ACPI: fix NULL pointer dereference (git-fixes).
• ACPI: Use DEVICE_ATTR_<RW|RO|WO> macros (git-fixes).
• Add cherry-picked commit id to the usb hso fix (git-fixes)
• Add obsolete_rebuilds_subpackage (boo#1172073 bsc#1191731).
• ALSA: hda: avoid…

The SUSE Linux Enterprise 15 SP3 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-3772: Fixed sctp vtag check in sctp_sf_ootb (bsc#1190351).
• CVE-2021-3655: Fixed a missing size validations on inbound SCTP packets, which may have allowed the kernel to read uninitialized memory (bsc#1188563).
• CVE-2021-43056: Fixed possible KVM host crash via malicious KVM guest on Power8 (bnc#1192107).
• CVE-2021-3896: Fixed a array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c (bsc#1191958).
• CVE-2021-3760: Fixed a use-after-free vulnerability with the ndev->rf_conn_info object (bsc#1190067).
• CVE-2021-42739: The firewire subsystem had a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled bounds checking (bsc#1184673).
• CVE-2021-3542: Fixed heap buffer overflow in firedtv driver (bsc#1186063).
• CVE-2021-33033: Fixed a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled (bsc#1186109).
• CVE-2021-3715: Fixed a use-after-free in route4_change() in net/sched/cls_route.c (bsc#1190349).
• CVE-2021-34866: Fixed eBPF Type Confusion Privilege Escalation Vulnerability (bsc#1191645).
• CVE-2021-42252: Fixed an issue inside aspeed_lpc_ctrl_mmap that could have allowed local attackers to access the Aspeed LPC control interface to overwrite memory in the kernel and potentially execute privileges (bnc#1190479).
• CVE-2021-41864: Fixed prealloc_elems_and_freelist that allowed unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write (bnc#1191317).
• CVE-2021-42008: Fixed a slab out-of-bounds write in the decode_data function in drivers/net/hamradio/6pack.c. Input from a process that had the CAP_NET_ADMIN capability could have lead to root access (bsc#1191315).

The following non-security bugs were fixed:

• ACPI: NFIT: Use fallback node id when numa info in NFIT table is incorrect (git-fixes).
• ACPI: bgrt: Fix CFI violation (git-fixes).
• ACPI: fix NULL pointer dereference (git-fixes).
• ACPI: fix NULL pointer dereference (git-fixes).
• ALSA: hda - Enable headphone mic on Dell Latitude laptops with ALC3254 (git-fixes).
• ALSA: hda/realtek - ALC236 headset MIC recording issue (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo PC50HS (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo X170KM-G (git-fixes).
• ALSA: hda/realtek: Add quirk for TongFang PHxTxX1 (git-fixes).
• ALSA: hda/realtek: Complete partial device name to avoid ambiguity (git-fixes).
• ALSA: hda/realtek: Enable 4-speaker output for Dell Precision 5560 laptop (git-fixes).
• ALSA: hda/realtek: Fix for quirk to enable speaker output on the Lenovo 13s Gen2 (git-fixes).
• ALSA: hda/realtek: Fix the mic type detection issue for ASUS G551JW (git-fixes).
• ALSA: hda/realtek: Quirks to enable speaker output for Lenovo Legion 7i 15IMHG05, Yoga 7i 14ITL5/15ITL5, and 13s Gen2 laptops (git-fixes).
• ALSA: hda: avoid write to STATESTS if controller is in reset (git-fixes).
• ALSA: hda: intel: Allow repeatedly probing on codec configuration errors (bsc#1190801).
• ALSA: pcm: Workaround for a wrong offset in SYNC_PTR compat ioctl (git-fixes).
• ALSA: seq: Fix a potential UAF by wrong private_free call order (git-fixes).
• ALSA: usb-audio: Add quirk for VF0770 (git-fixes).
• ALSA: usb-audio: Provide quirk for Sennheiser GSP670 Headset (git-fixes).
• ASoC: DAPM: Fix missing kctl change notifications (git-fixes).
• ASoC: Intel: Skylake: Fix module configuration for KPB and MIXER (git-fixes).
• ASoC: Intel: Skylake: Fix passing loadable flag for module (git-fixes).
• ASoC: Intel: bytcr_rt5640: Move 'Platform Clock' routes to the maps for the matching in-/output (git-fixes).
• ASoC: Intel: sof_sdw: tag SoundWire BEs as non-atomic (git-fixes).
• ASoC: SOF: imx: imx8: Bar index is only valid for…

The following security bugs were fixed:

• CVE-2021-3542: Fixed heap buffer overflow in firedtv driver (bsc#1186063).
• CVE-2021-3655: Fixed a missing size validations on inbound SCTP packets, which may have allowed the kernel to read uninitialized memory (bsc#1188563).
• CVE-2021-3715: Fixed a use-after-free in route4_change() in net/sched/cls_route.c (bsc#1190349).
• CVE-2021-3760: Fixed a use-after-free vulnerability with the ndev->rf_conn_info object (bsc#1190067).
• CVE-2021-3772: Fixed sctp vtag check in sctp_sf_ootb (bsc#1190351).
• CVE-2021-3896: Fixed a array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c (bsc#1191958).
• CVE-2021-33033: Fixed a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled (bsc#1186109).
• CVE-2021-34866: Fixed eBPF Type Confusion Privilege Escalation Vulnerability (bsc#1191645).
• CVE-2021-37159: hso_free_net_device in drivers/net/usb/hso.c called without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free (bnc#1188601).
• CVE-2021-41864: Fixed prealloc_elems_and_freelist that allowed unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write (bnc#1191317).
• CVE-2021-42008: Fixed a slab out-of-bounds write in the decode_data function in drivers/net/hamradio/6pack.c. Input from a process that had the CAP_NET_ADMIN capability could have lead to root access (bsc#1191315).
• CVE-2021-42252: Fixed an issue inside aspeed_lpc_ctrl_mmap that could have allowed local attackers to access the Aspeed LPC control interface to overwrite memory in the kernel and potentially execute privileges (bnc#1190479).
• CVE-2021-42739: The firewire subsystem had a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled bounds checking (bsc#1184673).
• CVE-2021-43056: Fixed possible KVM host crash via malicious KVM guest on Power8 (bnc#1192107).
• CVE-2021-43389: There was an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c (bnc#1191958).

The following non-security bugs were fixed:

• acpi/arm64: fix next_platform_timer() section mismatch error (git-fixes).
• ACPI: bgrt: Fix CFI violation (git-fixes).
• ACPI: fix NULL pointer dereference (git-fixes).
• ACPI: NFIT: Use fallback node id when numa info in NFIT table is incorrect (git-fixes).
• Add obsolete_rebuilds_subpackage (boo#1172073 bsc#1191731).
• ALSA: hda: avoid write to STATESTS if controller is in reset (git-fixes).
• ALSA: hda - Enable headphone mic on Dell Latitude laptops with ALC3254 (git-fixes).
• ALSA: hda: intel: Allow repeatedly probing on codec configuration errors (bsc#1190801).
• ALSA: hda/realtek: Add quirk for Clevo PC50HS (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo X170KM-G (git-fixes).
• ALSA: hda/realtek: Add quirk for TongFang PHxTxX1 (git-fixes).
• ALSA: hda/realtek - ALC236 headset MIC recording issue (git-fixes).
• ALSA: hda/realtek: Complete partial device name to avoid ambiguity (git-fixes).
• ALSA: hda/realtek: Enable 4-speaker output for Dell Precision 5560 laptop (git-fixes).
• ALSA: hda/realtek: Fix for quirk to enable speaker output on the Lenovo 13s Gen2 (git-fixes).
• ALSA: hda/realtek: Fix mic mute LED for the HP Spectre x360 14 (git-fixes).
• ALSA: hda/realtek: Fix the mic type detection issue for ASUS G551JW (git-fixes).
• ALSA: hda/realtek: Quirks to enable speaker output for Lenovo Legion 7i 15IMHG05, Yoga 7i 14ITL5/15ITL5, and 13s Gen2 laptops (git-fixes).
• ALSA: hda: Reduce udelay() at SKL+ position reporting (git-fixes).
• ALSA: hda: Use position buffer for SKL+ again (git-fixes).
• ALSA: pcm: Workaround for a wrong offset in SYNC_PTR compat ioctl (git-fixes).
• ALSA: seq: Fix a potential UAF by wrong private_free call order (git-fixes).
• ALSA: ua101: fix division by zero at probe (git-fixes).
• ALSA:…

The SUSE Linux Enterprise 15 SP1 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• Unprivileged BPF has been disabled by default to reduce attack surface as too many security issues have happened in the past (jsc#SLE-22573)

  You can reenable via systemctl setting /proc/sys/kernel/unprivileged_bpf_disabled to 0. (kernel.unprivileged_bpf_disabled = 0)

• CVE-2021-0941: In bpf_skb_change_head of filter.c, there is a possible out of bounds read due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192045).

• CVE-2021-31916: An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel A bound check failure allowed an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability (bnc#1192781).

• CVE-2021-20322: Make the ipv4 and ipv6 ICMP exception caches less predictive to avoid information leaks about UDP ports in use. (bsc#1191790)

• CVE-2021-34981: Fixed file refcounting in cmtp when cmtp_attach_device fails (bsc#1191961).

• CVE-2021-37159: hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free (bnc#1188601).

• CVE-2021-3772: Fixed sctp vtag check in sctp_sf_ootb (bsc#1190351).

• CVE-2021-3655: Missing size validations on inbound SCTP packets may have allowed the kernel to read uninitialized memory (bnc#1188563).

• CVE-2021-33033: The Linux kernel has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value (bnc#1186109 bnc#1186390 bnc#1188876).

• CVE-2021-3760: Fixed a use-after-free vulnerability with the ndev->rf_conn_info object (bsc#1190067).

• CVE-2021-42739: The firewire subsystem in the Linux kernel has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled bounds checking (bnc#1184673).

• CVE-2021-3542: Fixed heap buffer overflow in firedtv driver (bsc#1186063).

• CVE-2018-13405: The inode_init_owner function in fs/inode.c in the Linux kernel allowed local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID (bnc#1100416 bnc#1129735).

• CVE-2021-3715: Fixed a use-after-free in route4_change() in net/sched/cls_route.c (bsc#1190349).

• CVE-2021-34556: An unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack (bnc#1188983).

• CVE-2021-35477: An unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store operation did not necessarily occur before a store operation that has an attacker-controlled value (bnc#1188985).

• CVE-2021-42252: An issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel Local attackers able to access the Aspeed LPC control interface could overwrite memory in…

The SUSE Linux Enterprise 15 SP2 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-3772: Fixed sctp vtag check in sctp_sf_ootb (bsc#1190351).
• CVE-2021-3655: Fixed a missing size validations on inbound SCTP packets, which may have allowed the kernel to read uninitialized memory (bsc#1188563).
• CVE-2021-43056: Fixed possible KVM host crash via malicious KVM guest on Power8 (bnc#1192107).
• CVE-2021-3896: Fixed a array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c (bsc#1191958).
• CVE-2021-3760: Fixed a use-after-free vulnerability with the ndev->rf_conn_info object (bsc#1190067).
• CVE-2021-42739: The firewire subsystem had a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled bounds checking (bsc#1184673).
• CVE-2021-3542: Fixed heap buffer overflow in firedtv driver (bsc#1186063).
• CVE-2021-3715: Fixed a use-after-free in route4_change() in net/sched/cls_route.c (bsc#1190349).
• CVE-2021-42252: Fixed an issue inside aspeed_lpc_ctrl_mmap that could have allowed local attackers to access the Aspeed LPC control interface to overwrite memory in the kernel and potentially execute privileges (bnc#1190479).
• CVE-2021-41864: Fixed prealloc_elems_and_freelist that allowed unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write (bnc#1191317).
• CVE-2021-42008: Fixed a slab out-of-bounds write in the decode_data function in drivers/net/hamradio/6pack.c. Input from a process that had the CAP_NET_ADMIN capability could have lead to root access (bsc#1191315).

The following non-security bugs were fixed:

• ACPI: bgrt: Fix CFI violation (git-fixes).
• ACPI: fix NULL pointer dereference (git-fixes).
• ALSA: hda/realtek - ALC236 headset MIC recording issue (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo PC50HS (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo X170KM-G (git-fixes).
• ALSA: hda/realtek: Complete partial device name to avoid ambiguity (git-fixes).
• ALSA: hda/realtek: Fix the mic type detection issue for ASUS G551JW (git-fixes).
• ALSA: hda: avoid write to STATESTS if controller is in reset (git-fixes).
• ALSA: seq: Fix a potential UAF by wrong private_free call order (git-fixes).
• ALSA: usb-audio: Add quirk for VF0770 (git-fixes).
• ALSA: usb-audio: Provide quirk for Sennheiser GSP670 Headset (git-fixes).
• ASoC: DAPM: Fix missing kctl change notifications (git-fixes).
• ASoC: wm8960: Fix clock configuration on slave mode (git-fixes).
• Add obsolete_rebuilds_subpackage (boo#1172073 bsc#1191731).
• HID: apple: Fix logical maximum and usage maximum of Magic Keyboard JIS (git-fixes).
• HID: betop: fix slab-out-of-bounds Write in betop_probe (git-fixes).
• HID: u2fzero: ignore incomplete packets without data (git-fixes).
• HID: usbhid: free raw_report buffers in usbhid_stop (git-fixes).
• HID: wacom: Add new Intuos BT (CTL-4100WL/CTL-6100WL) device IDs (git-fixes).
• ICMPv6: Add ICMPv6 Parameter Problem, code 3 definition (bsc#1191241).
• IPv6: reply ICMP error if the first fragment do not include all headers (bsc#1191241).
• Input: snvs_pwrkey - add clk handling (git-fixes).
• Input: xpad - add support for another USB ID of Nacon GC-100 (git-fixes).
• KVM: PPC: Book3S HV Nested: Reflect guest PMU in-use to L0 when guest SPRs are live (bsc#1156395).
• KVM: PPC: Book3S HV Nested: Sanitise H_ENTER_NESTED TM state (bsc#1156395).
• KVM: PPC: Book3S HV: Save host FSCR in the P7/8 path (bsc#1065729).
• KVM: PPC: Book3S HV: Tolerate treclaim. in fake-suspend mode changing registers (bsc#1156395).
• KVM: PPC: Fix clearing never mapped TCEs in realmode (bsc#1156395).
• KVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak (bsc#1156395).
• KVM: s390: index kvm->arch.idle_mask by vcpu_idx (bsc#1133021).
• KVM: s390: VSIE: correctly handle MVPG when in VSIE (bsc#1133021).
• KVM: s390: extend kvm_s390_shadow_fault…

The SUSE Linux Enterprise 15 SP3 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-3772: Fixed sctp vtag check in sctp_sf_ootb (bsc#1190351).
• CVE-2021-3655: Fixed a missing size validations on inbound SCTP packets, which may have allowed the kernel to read uninitialized memory (bsc#1188563).
• CVE-2021-43056: Fixed possible KVM host crash via malicious KVM guest on Power8 (bnc#1192107).
• CVE-2021-3896: Fixed a array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c (bsc#1191958).
• CVE-2021-3760: Fixed a use-after-free vulnerability with the ndev->rf_conn_info object (bsc#1190067).
• CVE-2021-42739: The firewire subsystem had a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled bounds checking (bsc#1184673).
• CVE-2021-3542: Fixed heap buffer overflow in firedtv driver (bsc#1186063).
• CVE-2021-33033: Fixed a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled (bsc#1186109).
• CVE-2021-3715: Fixed a use-after-free in route4_change() in net/sched/cls_route.c (bsc#1190349).
• CVE-2021-34866: Fixed eBPF Type Confusion Privilege Escalation Vulnerability (bsc#1191645).
• CVE-2021-42252: Fixed an issue inside aspeed_lpc_ctrl_mmap that could have allowed local attackers to access the Aspeed LPC control interface to overwrite memory in the kernel and potentially execute privileges (bnc#1190479).
• CVE-2021-41864: Fixed prealloc_elems_and_freelist that allowed unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write (bnc#1191317).
• CVE-2021-42008: Fixed a slab out-of-bounds write in the decode_data function in drivers/net/hamradio/6pack.c. Input from a process that had the CAP_NET_ADMIN capability could have lead to root access (bsc#1191315).

The following non-security bugs were fixed:

• ACPI: NFIT: Use fallback node id when numa info in NFIT table is incorrect (git-fixes).
• ACPI: bgrt: Fix CFI violation (git-fixes).
• ACPI: fix NULL pointer dereference (git-fixes).
• ACPI: fix NULL pointer dereference (git-fixes).
• ALSA: hda - Enable headphone mic on Dell Latitude laptops with ALC3254 (git-fixes).
• ALSA: hda/realtek - ALC236 headset MIC recording issue (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo PC50HS (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo X170KM-G (git-fixes).
• ALSA: hda/realtek: Add quirk for TongFang PHxTxX1 (git-fixes).
• ALSA: hda/realtek: Complete partial device name to avoid ambiguity (git-fixes).
• ALSA: hda/realtek: Enable 4-speaker output for Dell Precision 5560 laptop (git-fixes).
• ALSA: hda/realtek: Fix for quirk to enable speaker output on the Lenovo 13s Gen2 (git-fixes).
• ALSA: hda/realtek: Fix the mic type detection issue for ASUS G551JW (git-fixes).
• ALSA: hda/realtek: Quirks to enable speaker output for Lenovo Legion 7i 15IMHG05, Yoga 7i 14ITL5/15ITL5, and 13s Gen2 laptops (git-fixes).
• ALSA: hda: avoid write to STATESTS if controller is in reset (git-fixes).
• ALSA: hda: intel: Allow repeatedly probing on codec configuration errors (bsc#1190801).
• ALSA: pcm: Workaround for a wrong offset in SYNC_PTR compat ioctl (git-fixes).
• ALSA: seq: Fix a potential UAF by wrong private_free call order (git-fixes).
• ALSA: usb-audio: Add quirk for VF0770 (git-fixes).
• ALSA: usb-audio: Provide quirk for Sennheiser GSP670 Headset (git-fixes).
• ASoC: DAPM: Fix missing kctl change notifications (git-fixes).
• ASoC: Intel: Skylake: Fix module configuration for KPB and MIXER (git-fixes).
• ASoC: Intel: Skylake: Fix passing loadable flag for module (git-fixes).
• ASoC: Intel: bytcr_rt5640: Move 'Platform Clock' routes to the maps for the matching in-/output (git-fixes).
• ASoC: Intel: sof_sdw: tag SoundWire BEs as non-atomic (git-fixes).
• ASoC: SOF: imx: imx8: Bar index is only valid for…

The SUSE Linux Enterprise 15 SP3 Real Time kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-3772: Fixed sctp vtag check in sctp_sf_ootb (bsc#1190351).
• CVE-2021-3655: Fixed a missing size validations on inbound SCTP packets, which may have allowed the kernel to read uninitialized memory (bsc#1188563).
• CVE-2021-43056: Fixed possible KVM host crash via malicious KVM guest on Power8 (bnc#1192107).
• CVE-2021-3896: Fixed a array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c (bsc#1191958).
• CVE-2021-3760: Fixed a use-after-free vulnerability with the ndev->rf_conn_info object (bsc#1190067).
• CVE-2021-42739: The firewire subsystem had a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled bounds checking (bsc#1184673).
• CVE-2021-3542: Fixed heap buffer overflow in firedtv driver (bsc#1186063).
• CVE-2021-33033: Fixed a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled (bsc#1186109).
• CVE-2021-3715: Fixed a use-after-free in route4_change() in net/sched/cls_route.c (bsc#1190349).
• CVE-2021-34866: Fixed eBPF Type Confusion Privilege Escalation Vulnerability (bsc#1191645).
• CVE-2021-42252: Fixed an issue inside aspeed_lpc_ctrl_mmap that could have allowed local attackers to access the Aspeed LPC control interface to overwrite memory in the kernel and potentially execute privileges (bnc#1190479).
• CVE-2021-41864: Fixed prealloc_elems_and_freelist that allowed unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write (bnc#1191317).
• CVE-2021-42008: Fixed a slab out-of-bounds write in the decode_data function in drivers/net/hamradio/6pack.c. Input from a process that had the CAP_NET_ADMIN capability could have lead to root access (bsc#1191315).

The following non-security bugs were fixed:

• ACPI: NFIT: Use fallback node id when numa info in NFIT table is incorrect (git-fixes).
• ACPI: bgrt: Fix CFI violation (git-fixes).
• ACPI: fix NULL pointer dereference (git-fixes).
• ACPI: fix NULL pointer dereference (git-fixes).
• ALSA: hda - Enable headphone mic on Dell Latitude laptops with ALC3254 (git-fixes).
• ALSA: hda/realtek - ALC236 headset MIC recording issue (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo PC50HS (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo X170KM-G (git-fixes).
• ALSA: hda/realtek: Add quirk for TongFang PHxTxX1 (git-fixes).
• ALSA: hda/realtek: Complete partial device name to avoid ambiguity (git-fixes).
• ALSA: hda/realtek: Enable 4-speaker output for Dell Precision 5560 laptop (git-fixes).
• ALSA: hda/realtek: Fix for quirk to enable speaker output on the Lenovo 13s Gen2 (git-fixes).
• ALSA: hda/realtek: Fix the mic type detection issue for ASUS G551JW (git-fixes).
• ALSA: hda/realtek: Quirks to enable speaker output for Lenovo Legion 7i 15IMHG05, Yoga 7i 14ITL5/15ITL5, and 13s Gen2 laptops (git-fixes).
• ALSA: hda: avoid write to STATESTS if controller is in reset (git-fixes).
• ALSA: hda: intel: Allow repeatedly probing on codec configuration errors (bsc#1190801).
• ALSA: pcm: Workaround for a wrong offset in SYNC_PTR compat ioctl (git-fixes).
• ALSA: seq: Fix a potential UAF by wrong private_free call order (git-fixes).
• ALSA: usb-audio: Add quirk for VF0770 (git-fixes).
• ALSA: usb-audio: Provide quirk for Sennheiser GSP670 Headset (git-fixes).
• ASoC: DAPM: Fix missing kctl change notifications (git-fixes).
• ASoC: Intel: Skylake: Fix module configuration for KPB and MIXER (git-fixes).
• ASoC: Intel: Skylake: Fix passing loadable flag for module (git-fixes).
• ASoC: Intel: bytcr_rt5640: Move 'Platform Clock' routes to the maps for the matching in-/output (git-fixes).
• ASoC: Intel: sof_sdw: tag SoundWire BEs as non-atomic (git-fixes).
• ASoC: SOF: imx: imx8: Bar index is only valid for…

The SUSE Linux Enterprise 15 SP2 Real Time kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-3772: Fixed sctp vtag check in sctp_sf_ootb (bsc#1190351).
• CVE-2021-3655: Fixed a missing size validations on inbound SCTP packets, which may have allowed the kernel to read uninitialized memory (bsc#1188563).
• CVE-2021-43056: Fixed possible KVM host crash via malicious KVM guest on Power8 (bnc#1192107).
• CVE-2021-3896: Fixed a array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c (bsc#1191958).
• CVE-2021-3760: Fixed a use-after-free vulnerability with the ndev->rf_conn_info object (bsc#1190067).
• CVE-2021-42739: The firewire subsystem had a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled bounds checking (bsc#1184673).
• CVE-2021-3542: Fixed heap buffer overflow in firedtv driver (bsc#1186063).
• CVE-2021-3715: Fixed a use-after-free in route4_change() in net/sched/cls_route.c (bsc#1190349).
• CVE-2021-42252: Fixed an issue inside aspeed_lpc_ctrl_mmap that could have allowed local attackers to access the Aspeed LPC control interface to overwrite memory in the kernel and potentially execute privileges (bnc#1190479).
• CVE-2021-41864: Fixed prealloc_elems_and_freelist that allowed unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write (bnc#1191317).
• CVE-2021-42008: Fixed a slab out-of-bounds write in the decode_data function in drivers/net/hamradio/6pack.c. Input from a process that had the CAP_NET_ADMIN capability could have lead to root access (bsc#1191315).

The following non-security bugs were fixed:

• ACPI: bgrt: Fix CFI violation (git-fixes).
• ACPI: fix NULL pointer dereference (git-fixes).
• ALSA: hda/realtek - ALC236 headset MIC recording issue (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo PC50HS (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo X170KM-G (git-fixes).
• ALSA: hda/realtek: Complete partial device name to avoid ambiguity (git-fixes).
• ALSA: hda/realtek: Fix the mic type detection issue for ASUS G551JW (git-fixes).
• ALSA: hda: avoid write to STATESTS if controller is in reset (git-fixes).
• ALSA: seq: Fix a potential UAF by wrong private_free call order (git-fixes).
• ALSA: usb-audio: Add quirk for VF0770 (git-fixes).
• ALSA: usb-audio: Provide quirk for Sennheiser GSP670 Headset (git-fixes).
• ASoC: DAPM: Fix missing kctl change notifications (git-fixes).
• ASoC: wm8960: Fix clock configuration on slave mode (git-fixes).
• Add obsolete_rebuilds_subpackage (boo#1172073 bsc#1191731).
• HID: apple: Fix logical maximum and usage maximum of Magic Keyboard JIS (git-fixes).
• HID: betop: fix slab-out-of-bounds Write in betop_probe (git-fixes).
• HID: u2fzero: ignore incomplete packets without data (git-fixes).
• HID: usbhid: free raw_report buffers in usbhid_stop (git-fixes).
• HID: wacom: Add new Intuos BT (CTL-4100WL/CTL-6100WL) device IDs (git-fixes).
• ICMPv6: Add ICMPv6 Parameter Problem, code 3 definition (bsc#1191241).
• IPv6: reply ICMP error if the first fragment do not include all headers (bsc#1191241).
• Input: snvs_pwrkey - add clk handling (git-fixes).
• Input: xpad - add support for another USB ID of Nacon GC-100 (git-fixes).
• KVM: PPC: Book3S HV Nested: Reflect guest PMU in-use to L0 when guest SPRs are live (bsc#1156395).
• KVM: PPC: Book3S HV Nested: Sanitise H_ENTER_NESTED TM state (bsc#1156395).
• KVM: PPC: Book3S HV: Save host FSCR in the P7/8 path (bsc#1065729).
• KVM: PPC: Book3S HV: Tolerate treclaim. in fake-suspend mode changing registers (bsc#1156395).
• KVM: PPC: Fix clearing never mapped TCEs in realmode (bsc#1156395).
• KVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak (bsc#1156395).
• NFC: digital: fix possible memory leak in digital_in_send_sdd_req() (git-fixes).
• NFC: digital: fix possible memory leak in digital_tg_listen_mdaa() (git-fixes).
• NFS:…

The following security bugs were fixed:

• CVE-2021-3542: Fixed heap buffer overflow in firedtv driver (bsc#1186063).
• CVE-2021-3655: Fixed a missing size validations on inbound SCTP packets, which may have allowed the kernel to read uninitialized memory (bsc#1188563).
• CVE-2021-3715: Fixed a use-after-free in route4_change() in net/sched/cls_route.c (bsc#1190349).
• CVE-2021-3760: Fixed a use-after-free vulnerability with the ndev->rf_conn_info object (bsc#1190067).
• CVE-2021-3772: Fixed sctp vtag check in sctp_sf_ootb (bsc#1190351).
• CVE-2021-3896: Fixed a array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c (bsc#1191958).
• CVE-2021-33033: Fixed a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled (bsc#1186109).
• CVE-2021-34866: Fixed eBPF Type Confusion Privilege Escalation Vulnerability (bsc#1191645).
• CVE-2021-37159: hso_free_net_device in drivers/net/usb/hso.c called without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free (bnc#1188601).
• CVE-2021-41864: Fixed prealloc_elems_and_freelist that allowed unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write (bnc#1191317).
• CVE-2021-42008: Fixed a slab out-of-bounds write in the decode_data function in drivers/net/hamradio/6pack.c. Input from a process that had the CAP_NET_ADMIN capability could have lead to root access (bsc#1191315).
• CVE-2021-42252: Fixed an issue inside aspeed_lpc_ctrl_mmap that could have allowed local attackers to access the Aspeed LPC control interface to overwrite memory in the kernel and potentially execute privileges (bnc#1190479).
• CVE-2021-42739: The firewire subsystem had a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled bounds checking (bsc#1184673).
• CVE-2021-43056: Fixed possible KVM host crash via malicious KVM guest on Power8 (bnc#1192107).
• CVE-2021-43389: There was an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c (bnc#1191958).

The following non-security bugs were fixed:

• acpi/arm64: fix next_platform_timer() section mismatch error (git-fixes).
• ACPI: bgrt: Fix CFI violation (git-fixes).
• ACPI: fix NULL pointer dereference (git-fixes).
• ACPI: NFIT: Use fallback node id when numa info in NFIT table is incorrect (git-fixes).
• Add obsolete_rebuilds_subpackage (boo#1172073 bsc#1191731).
• ALSA: hda: avoid write to STATESTS if controller is in reset (git-fixes).
• ALSA: hda - Enable headphone mic on Dell Latitude laptops with ALC3254 (git-fixes).
• ALSA: hda: intel: Allow repeatedly probing on codec configuration errors (bsc#1190801).
• ALSA: hda/realtek: Add quirk for Clevo PC50HS (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo X170KM-G (git-fixes).
• ALSA: hda/realtek: Add quirk for TongFang PHxTxX1 (git-fixes).
• ALSA: hda/realtek - ALC236 headset MIC recording issue (git-fixes).
• ALSA: hda/realtek: Complete partial device name to avoid ambiguity (git-fixes).
• ALSA: hda/realtek: Enable 4-speaker output for Dell Precision 5560 laptop (git-fixes).
• ALSA: hda/realtek: Fix for quirk to enable speaker output on the Lenovo 13s Gen2 (git-fixes).
• ALSA: hda/realtek: Fix mic mute LED for the HP Spectre x360 14 (git-fixes).
• ALSA: hda/realtek: Fix the mic type detection issue for ASUS G551JW (git-fixes).
• ALSA: hda/realtek: Quirks to enable speaker output for Lenovo Legion 7i 15IMHG05, Yoga 7i 14ITL5/15ITL5, and 13s Gen2 laptops (git-fixes).
• ALSA: hda: Reduce udelay() at SKL+ position reporting (git-fixes).
• ALSA: hda: Use position buffer for SKL+ again (git-fixes).
• ALSA: pcm: Workaround for a wrong offset in SYNC_PTR compat ioctl (git-fixes).
• ALSA: seq: Fix a potential UAF by wrong private_free call order (git-fixes).
• ALSA: ua101: fix division by zero at probe (git-fixes).
• ALSA:…

The SUSE Linux Enterprise 12 SP5 Real Time kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-3655: Fixed a missing size validations on inbound SCTP packets, which may have allowed the kernel to read uninitialized memory (bsc#1188563).
• CVE-2021-3715: Fixed a use-after-free in route4_change() in net/sched/cls_route.c (bsc#1190349).
• CVE-2021-33033: Fixed a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled (bsc#1186109).
• CVE-2021-3760: Fixed a use-after-free vulnerability with the ndev->rf_conn_info object (bsc#1190067).
• CVE-2021-42739: The firewire subsystem had a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled bounds checking (bsc#1184673).
• CVE-2021-3542: Fixed heap buffer overflow in firedtv driver (bsc#1186063).
• CVE-2021-34556: Fixed side-channel attack via a Speculative Store Bypass via unprivileged BPF program that could have obtain sensitive information from kernel memory (bsc#1188983).
• CVE-2021-35477: Fixed BPF stack frame pointer which could have been abused to disclose content of arbitrary kernel memory (bsc#1188985).
• CVE-2021-42252: Fixed an issue inside aspeed_lpc_ctrl_mmap that could have allowed local attackers to access the Aspeed LPC control interface to overwrite memory in the kernel and potentially execute privileges (bnc#1190479).
• CVE-2021-41864: Fixed prealloc_elems_and_freelist that allowed unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write (bnc#1191317).
• CVE-2021-42008: Fixed a slab out-of-bounds write in the decode_data function in drivers/net/hamradio/6pack.c. Input from a process that had the CAP_NET_ADMIN capability could have lead to root access (bsc#1191315).
• CVE-2021-37159: Fixed use-after-free and a double free in hso_free_net_device in drivers/net/usb/hso.c when unregister_netdev is called without checking for the NETREG_REGISTERED state (bnc#1188601).
• CVE-2021-3772: Fixed sctp vtag check in sctp_sf_ootb (bsc#1190351).

The following non-security bugs were fixed:

• IB/hfi1: Fix abba locking issue with sc_disable() (git-fixes)
• ICMPv6: Add ICMPv6 Parameter Problem, code 3 definition (bsc#1191241).
• IPv6: reply ICMP error if the first fragment do not include all headers (bsc#1191241).
• KVM: PPC: Book3S HV: Save host FSCR in the P7/8 path (bsc#1065729).
• NFS: Do uncached readdir when we're seeking a cookie in an empty page cache (bsc#1191628).
• PM: base: power: do not try to use non-existing RTC for storing data (git-fixes).
• SMB3.1.1: Fix ids returned in POSIX query dir (bsc#1190317).
• SMB3.1.1: do not log warning message if server does not populate salt (bsc#1190317).
• SMB3.1.1: fix mount failure to some servers when compression enabled (bsc#1190317).
• SMB3.1.1: remove confusing mount warning when no SPNEGO info on negprot rsp (bsc#1190317).
• SMB3.1.1: update comments clarifying SPNEGO info in negprot response (bsc#1190317).
• SMB3: Add new info level for query directory (bsc#1190317).
• SMB3: Add support for getting and setting SACLs (bsc#1190317).
• SMB3: Fix mkdir when idsfromsid configured on mount (bsc#1190317).
• SMB3: Resolve data corruption of TCP server info fields (bsc#1190317).
• SMB3: add support for recognizing WSL reparse tags (bsc#1190317).
• SMB3: avoid confusing warning message on mount to Azure (bsc#1190317).
• SMB3: fix readpage for large swap cache (bsc#1190317).
• SMB3: incorrect file id in requests compounded with open (bsc#1190317).
• SMB3: update structures for new compression protocol definitions (bsc#1190317).
• USB: cdc-acm: fix break reporting (git-fixes).
• USB: cdc-acm: fix racy tty buffer accesses (git-fixes).
• USB: serial: cp210x: add ID for GW Instek GDM-834x Digital Multimeter (git-fixes).
• USB: serial: option: add Telit LN920 compositions…

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-3655: Fixed a missing size validations on inbound SCTP packets, which may have allowed the kernel to read uninitialized memory (bsc#1188563).
• CVE-2021-3715: Fixed a use-after-free in route4_change() in net/sched/cls_route.c (bsc#1190349).
• CVE-2021-33033: Fixed a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled (bsc#1186109).
• CVE-2021-3760: Fixed a use-after-free vulnerability with the ndev->rf_conn_info object (bsc#1190067).
• CVE-2021-42739: The firewire subsystem had a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled bounds checking (bsc#1184673).
• CVE-2021-3542: Fixed heap buffer overflow in firedtv driver (bsc#1186063).
• CVE-2021-34556: Fixed side-channel attack via a Speculative Store Bypass via unprivileged BPF program that could have obtain sensitive information from kernel memory (bsc#1188983).
• CVE-2021-35477: Fixed BPF stack frame pointer which could have been abused to disclose content of arbitrary kernel memory (bsc#1188985).
• CVE-2021-42252: Fixed an issue inside aspeed_lpc_ctrl_mmap that could have allowed local attackers to access the Aspeed LPC control interface to overwrite memory in the kernel and potentially execute privileges (bnc#1190479).
• CVE-2021-41864: Fixed prealloc_elems_and_freelist that allowed unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write (bnc#1191317).
• CVE-2021-42008: Fixed a slab out-of-bounds write in the decode_data function in drivers/net/hamradio/6pack.c. Input from a process that had the CAP_NET_ADMIN capability could have lead to root access (bsc#1191315).
• CVE-2021-37159: Fixed use-after-free and a double free inside hso_free_net_device in drivers/net/usb/hso.c when unregister_netdev is called without checking for the NETREG_REGISTERED state (bnc#1188601).

The following non-security bugs were fixed:

• IB/hfi1: Fix abba locking issue with sc_disable() (git-fixes)
• KVM: PPC: Book3S HV: Save host FSCR in the P7/8 path (bsc#1065729).
• NFS: Do uncached readdir when we're seeking a cookie in an empty page cache (bsc#1191628).
• NFS: Fix backport error - dir_cookie is a pointer to a u64, not a u64.
• PM: base: power: do not try to use non-existing RTC for storing data (git-fixes).
• SMB3.1.1: Fix ids returned in POSIX query dir (bsc#1190317).
• SMB3.1.1: do not log warning message if server does not populate salt (bsc#1190317).
• SMB3.1.1: fix mount failure to some servers when compression enabled (bsc#1190317).
• SMB3.1.1: remove confusing mount warning when no SPNEGO info on negprot rsp (bsc#1190317).
• SMB3.1.1: update comments clarifying SPNEGO info in negprot response (bsc#1190317).
• SMB3: Add new info level for query directory (bsc#1190317).
• SMB3: Add support for getting and setting SACLs (bsc#1190317).
• SMB3: Fix mkdir when idsfromsid configured on mount (bsc#1190317).
• SMB3: Resolve data corruption of TCP server info fields (bsc#1190317).
• SMB3: add support for recognizing WSL reparse tags (bsc#1190317).
• SMB3: avoid confusing warning message on mount to Azure (bsc#1190317).
• SMB3: fix readpage for large swap cache (bsc#1190317).
• SMB3: incorrect file id in requests compounded with open (bsc#1190317).
• SMB3: update structures for new compression protocol definitions (bsc#1190317).
• USB: cdc-acm: fix break reporting (git-fixes).
• USB: cdc-acm: fix racy tty buffer accesses (git-fixes).
• USB: iowarrior: fix control-message timeouts (git-fixes).
• USB: serial: cp210x: add ID for GW Instek GDM-834x Digital Multimeter (git-fixes).
• USB: serial: keyspan: fix memleak on probe errors (git-fixes).
• USB: serial: option: add Telit LN920 compositions (git-fixes).
• USB: serial: option:…

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-3772: Fixed sctp vtag check in sctp_sf_ootb (bsc#1190351).
• CVE-2021-3655: Fixed a missing size validations on inbound SCTP packets, which may have allowed the kernel to read uninitialized memory (bsc#1188563).
• CVE-2021-43056: Fixed possible KVM host crash via malicious KVM guest on Power8 (bnc#1192107).
• CVE-2021-3896: Fixed a array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c (bsc#1191958).
• CVE-2021-3760: Fixed a use-after-free vulnerability with the ndev->rf_conn_info object (bsc#1190067).
• CVE-2021-42739: The firewire subsystem had a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled bounds checking (bsc#1184673).
• CVE-2021-3542: Fixed heap buffer overflow in firedtv driver (bsc#1186063).
• CVE-2021-3715: Fixed a use-after-free in route4_change() in net/sched/cls_route.c (bsc#1190349).
• CVE-2021-42252: Fixed an issue inside aspeed_lpc_ctrl_mmap that could have allowed local attackers to access the Aspeed LPC control interface to overwrite memory in the kernel and potentially execute privileges (bnc#1190479).
• CVE-2021-41864: Fixed prealloc_elems_and_freelist that allowed unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write (bnc#1191317).
• CVE-2021-42008: Fixed a slab out-of-bounds write in the decode_data function in drivers/net/hamradio/6pack.c. Input from a process that had the CAP_NET_ADMIN capability could have lead to root access (bsc#1191315).

The following non-security bugs were fixed:

• ACPI: bgrt: Fix CFI violation (git-fixes).
• ACPI: fix NULL pointer dereference (git-fixes).
• ALSA: hda/realtek - ALC236 headset MIC recording issue (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo PC50HS (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo X170KM-G (git-fixes).
• ALSA: hda/realtek: Complete partial device name to avoid ambiguity (git-fixes).
• ALSA: hda/realtek: Fix the mic type detection issue for ASUS G551JW (git-fixes).
• ALSA: hda: avoid write to STATESTS if controller is in reset (git-fixes).
• ALSA: seq: Fix a potential UAF by wrong private_free call order (git-fixes).
• ALSA: usb-audio: Add quirk for VF0770 (git-fixes).
• ALSA: usb-audio: Provide quirk for Sennheiser GSP670 Headset (git-fixes).
• ASoC: DAPM: Fix missing kctl change notifications (git-fixes).
• ASoC: wm8960: Fix clock configuration on slave mode (git-fixes).
• Add obsolete_rebuilds_subpackage (boo#1172073 bsc#1191731).
• HID: apple: Fix logical maximum and usage maximum of Magic Keyboard JIS (git-fixes).
• HID: betop: fix slab-out-of-bounds Write in betop_probe (git-fixes).
• HID: u2fzero: ignore incomplete packets without data (git-fixes).
• HID: usbhid: free raw_report buffers in usbhid_stop (git-fixes).
• HID: wacom: Add new Intuos BT (CTL-4100WL/CTL-6100WL) device IDs (git-fixes).
• ICMPv6: Add ICMPv6 Parameter Problem, code 3 definition (bsc#1191241).
• IPv6: reply ICMP error if the first fragment do not include all headers (bsc#1191241).
• Input: snvs_pwrkey - add clk handling (git-fixes).
• Input: xpad - add support for another USB ID of Nacon GC-100 (git-fixes).
• KVM: PPC: Book3S HV Nested: Reflect guest PMU in-use to L0 when guest SPRs are live (bsc#1156395).
• KVM: PPC: Book3S HV Nested: Sanitise H_ENTER_NESTED TM state (bsc#1156395).
• KVM: PPC: Book3S HV: Save host FSCR in the P7/8 path (bsc#1065729).
• KVM: PPC: Book3S HV: Tolerate treclaim. in fake-suspend mode changing registers (bsc#1156395).
• KVM: PPC: Fix clearing never mapped TCEs in realmode (bsc#1156395).
• KVM: PPC: Fix kvm_arch_vcpu_ioctl vcpu_load leak (bsc#1156395).
• NFC: digital: fix possible memory leak in digital_in_send_sdd_req() (git-fixes).
• NFC: digital: fix possible memory leak in digital_tg_listen_mdaa() (git-fixes).
• NFS: dir_cookie…

The SUSE Linux Enterprise 15 SP1 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• Unprivileged BPF has been disabled by default to reduce attack surface as too many security issues have happened in the past (jsc#SLE-22573)

  You can reenable via systemctl setting /proc/sys/kernel/unprivileged_bpf_disabled to 0. (kernel.unprivileged_bpf_disabled = 0)

• CVE-2021-0941: In bpf_skb_change_head of filter.c, there is a possible out of bounds read due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192045).

• CVE-2021-31916: An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel A bound check failure allowed an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability (bnc#1192781).

• CVE-2021-20322: Make the ipv4 and ipv6 ICMP exception caches less predictive to avoid information leaks about UDP ports in use. (bsc#1191790)

• CVE-2021-34981: Fixed file refcounting in cmtp when cmtp_attach_device fails (bsc#1191961).

• CVE-2021-37159: hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free (bnc#1188601).

• CVE-2021-3772: Fixed sctp vtag check in sctp_sf_ootb (bsc#1190351).

• CVE-2021-3655: Missing size validations on inbound SCTP packets may have allowed the kernel to read uninitialized memory (bnc#1188563).

• CVE-2021-33033: The Linux kernel has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value (bnc#1186109 bnc#1186390 bnc#1188876).

• CVE-2021-3760: Fixed a use-after-free vulnerability with the ndev->rf_conn_info object (bsc#1190067).

• CVE-2021-42739: The firewire subsystem in the Linux kernel has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled bounds checking (bnc#1184673).

• CVE-2021-3542: Fixed heap buffer overflow in firedtv driver (bsc#1186063).

• CVE-2018-13405: The inode_init_owner function in fs/inode.c in the Linux kernel allowed local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID (bnc#1100416 bnc#1129735).

• CVE-2021-3715: Fixed a use-after-free in route4_change() in net/sched/cls_route.c (bsc#1190349).

• CVE-2021-34556: An unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack (bnc#1188983).

• CVE-2021-35477: An unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store operation did not necessarily occur before a store operation that has an attacker-controlled value (bnc#1188985).

• CVE-2021-42252: An issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel Local attackers able to access the Aspeed LPC control interface could overwrite memory in…

The SUSE Linux Enterprise 12 SP2 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• Unprivileged BPF has been disabled by default to reduce attack surface as too many security issues have happened in the past (jsc#SLE-22573)

  You can reenable via systemctl setting /proc/sys/kernel/unprivileged_bpf_disabled to 0. (kernel.unprivileged_bpf_disabled = 0)

• CVE-2017-5753: Systems with microprocessors utilizing speculative execution and branch prediction may have allowed unauthorized disclosure of information to an attacker with local user access via a side-channel analysis (bnc#1068032). Additional spectrev1 fixes were added to the eBPF code.

• CVE-2018-13405: The inode_init_owner function in fs/inode.c allowed local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID (bnc#1087082 bnc#1100416 bnc#1129735).

• CVE-2018-16882: A use-after-free issue was found in the way the KVM hypervisor processed posted interrupts when nested(=1) virtualization is enabled. In nested_get_vmcs12_pages(), in case of an error while processing posted interrupt address, it unmaps the 'pi_desc_page' without resetting 'pi_desc' descriptor address, which is later used in pi_test_and_clear_on(). A guest user/process could use this flaw to crash the host kernel resulting in DoS or potentially gain privileged access to a system. Kernel versions and are vulnerable (bnc#1119934).

• CVE-2020-0429: In l2tp_session_delete and related functions of l2tp_core.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1176724).

• CVE-2020-12655: An issue was discovered in xfs_agf_verify in fs/xfs/libxfs/xfs_alloc.c in the Linux kernel Attackers may trigger a sync of excessive duration via an XFS v5 image with crafted metadata, aka CID-d0c7feaf8767 (bnc#1171217).

• CVE-2020-14305: An out-of-bounds memory write flaw was found in how the Linux kernel’s Voice Over IP H.323 connection tracking functionality handled connections on ipv6 port 1720. This flaw allowed an unauthenticated remote user to crash the system, causing a denial of service. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability (bnc#1173346).

• CVE-2020-3702: Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic (bnc#1191193).

• CVE-2021-20265: A flaw was found in the way memory resources were freed in the unix_stream_recvmsg function in the Linux kernel when a signal was pending. This flaw allowed an unprivileged local user to crash the system by exhausting available memory. The highest threat from this vulnerability is to system availability (bnc#1183089).

• CVE-2021-31916: An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel A bound check failure allowed an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability (bnc#1192781).

• CVE-2021-33033: The Linux kernel has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO…

The SUSE Linux Enterprise 12 SP3 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• Unprivileged BPF has been disabled by default to reduce attack surface as too many security issues have happened in the past (jsc#SLE-22573)

  You can reenable via systemctl setting /proc/sys/kernel/unprivileged_bpf_disabled to 0. (kernel.unprivileged_bpf_disabled = 0)

• CVE-2021-31916: An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel A bound check failure allowed an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability (bnc#1192781).

• CVE-2021-20322: Make the ipv4 and ipv6 ICMP exception caches less predictive to avoid information leaks about UDP ports in use. (bsc#1191790)

• CVE-2021-34981: Fixed file refcounting in cmtp when cmtp_attach_device fails (bsc#1191961).

• CVE-2020-12655: An issue was discovered in xfs_agf_verify in fs/xfs/libxfs/xfs_alloc.c. Attackers may trigger a sync of excessive duration via an XFS v5 image with crafted metadata, aka CID-d0c7feaf8767 (bnc#1171217).

• CVE-2021-43389: There was an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c (bnc#1191958).

• CVE-2021-37159: hso_free_net_device in drivers/net/usb/hso.c called unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free (bnc#1188601).

• CVE-2021-34556: An unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack (bnc#1188983).

• CVE-2021-35477: An unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store operation did not necessarily occur before a store operation that has an attacker-controlled value (bnc#1188985).

• CVE-2017-17862: kernel/bpf/verifier.c in the Linux kernel ignores unreachable code, even though it would still be processed by JIT compilers. This behavior, also considered an improper branch-pruning logic issue, could possibly be used by local users for denial of service (bnc#1073928).

• CVE-2017-17864: kernel/bpf/verifier.c in the Linux kernel mishandled states_equal comparisons between the pointer data type and the UNKNOWN_VALUE data type, which allowed local users to obtain potentially sensitive address information, aka a 'pointer leak (bnc#1073928).

• CVE-2021-20265: A flaw was found in the way memory resources were freed in the unix_stream_recvmsg function in the Linux kernel when a signal was pending. This flaw allowed an unprivileged local user to crash the system by exhausting available memory. The highest threat from this vulnerability is to system availability (bnc#1183089).

• CVE-2021-3772: Fixed sctp vtag check in sctp_sf_ootb (bsc#1190351).

• CVE-2021-3655: Missing size validations on inbound SCTP packets may have allowed the kernel to read uninitialized memory (bnc#1188563).

• CVE-2018-13405: The inode_init_owner function in fs/inode.c in the Linux kernel allowed local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID (bnc#1100416 bnc#1129735).

• CVE-2021-3760: Fixed a use-after-free…

The SUSE Linux Enterprise 15 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

Unprivileged BPF has been disabled by default to reduce attack surface as too many security issues have happened in the past (jsc#SLE-22573) You can reenable via systemctl setting /proc/sys/kernel/unprivileged_bpf_disabled to 0. (kernel.unprivileged_bpf_disabled = 0)

• CVE-2018-3639: Fixed a speculative execution that may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis. (bsc#1087082)
• CVE-2021-20320: Fix a bug that allows a local attacker with special user privilege can circumvent the verifier and may lead to a confidentiality problem. (bsc#1190601)
• CVE-2021-0941: Fixed A missing sanity check to the current MTU check that may allow a local attacker with special user privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. (bnc#1192045)
• CVE-2021-31916: Fixed a bound check failure that could allows an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash, a leak of internal kernel information, or a privilege escalation problem. (bnc#1192781)
• CVE-2021-20322: Fixed a bug that provides to an attacker the ability to quickly scan open UDP ports. (bsc#1191790)
• CVE-2021-3772: Fixed an issue that would allow a blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses. (bsc#1190351)
• CVE-2021-34981: Fixed an issue that allows an attacker with a local account to escalate privileges when CAPI (ISDN) hardware connection fails. (bsc#1191961)
• CVE-2018-9517: Fixed possible memory corruption due to a use after free in pppol2tp_connect (bsc#1108488).
• CVE-2019-3874: Fixed possible denial of service attack via SCTP socket buffer used by a userspace applications (bnc#1129898).
• CVE-2019-3900: Fixed an infinite loop issue while handling incoming packets in handle_rx() (bnc#1133374).
• CVE-2020-12770: Fixed sg_remove_request call in a certain failure cases (bsc#1171420).
• CVE-2020-3702: Fixed a bug which could be triggered with specifically timed and handcrafted traffic and cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure. (bnc#1191193)
• CVE-2021-22543: Fixed improper handling of VM_IO|VM_PFNMAP vmas in KVM, which could bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allowed users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation (bsc#1186482).
• CVE-2021-33033: Fixed a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled (bsc#1186109).
• CVE-2021-34556: Fixed side-channel attack via a Speculative Store Bypass via unprivileged BPF program that could have obtain sensitive information from kernel memory (bsc#1188983).
• CVE-2021-35477: Fixed BPF stack frame pointer which could have been abused to disclose content of arbitrary kernel memory (bsc#1188985).
• CVE-2021-3640: Fixed a Use-After-Free vulnerability in function sco_sock_sendmsg() in the bluetooth stack (bsc#1188172).
• CVE-2021-3653: Missing validation of the int_ctl VMCB field and allows a malicious L1 guest to enable AVIC support for the L2 guest. (bsc#1189399).
• CVE-2021-3655: Fixed a missing size validations on inbound SCTP packets, which may have allowed the kernel to read uninitialized memory (bsc#1188563).
• CVE-2021-3656: Missing validation of the the virt_ext VMCB field and allows a malicious L1 guest to disable both VMLOAD/VMSAVE intercepts and VLS for the L2 guest (bsc#1189400). -…

The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• Unprivileged BPF has been disabled by default to reduce attack surface as too many security issues have happened in the past (jsc#SLE-22573)

  You can reenable via systemctl setting /proc/sys/kernel/unprivileged_bpf_disabled to 0. (kernel.unprivileged_bpf_disabled = 0)

The following security bugs were fixed:

• CVE-2021-0941: In bpf_skb_change_head of filter.c, there is a possible out of bounds read due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192045).
• CVE-2021-31916: An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi-device driver module in the Linux kernel A bound check failure allowed an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability (bnc#1192781).
• CVE-2021-20322: Make the ipv4 and ipv6 ICMP exception caches less predictive to avoid information leaks about UDP ports in use. (bsc#1191790)
• CVE-2021-34981: Fixed file refcounting in cmtp when cmtp_attach_device fails. (bsc#1191961)
• CVE-2021-3655: Fixed a missing size validations on inbound SCTP packets, which may have allowed the kernel to read uninitialized memory (bsc#1188563).
• CVE-2021-3715: Fixed a use-after-free in route4_change() in net/sched/cls_route.c (bsc#1190349).
• CVE-2021-3760: Fixed a use-after-free vulnerability with the ndev->rf_conn_info object (bsc#1190067).
• CVE-2021-42739: The firewire subsystem had a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandled bounds checking (bsc#1184673).
• CVE-2021-3542: Fixed heap buffer overflow in firedtv driver (bsc#1186063).
• CVE-2021-42252: Fixed an issue inside aspeed_lpc_ctrl_mmap that could have allowed local attackers to access the Aspeed LPC control interface to overwrite memory in the kernel and potentially execute privileges (bnc#1190479).
• CVE-2021-41864: Fixed prealloc_elems_and_freelist that allowed unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write (bnc#1191317).
• CVE-2021-42008: Fixed a slab out-of-bounds write in the decode_data function in drivers/net/hamradio/6pack.c. Input from a process that had the CAP_NET_ADMIN capability could have lead to root access (bsc#1191315).
• CVE-2021-37159: Fixed use-after-free and a double free inside hso_free_net_device in drivers/net/usb/hso.c when unregister_netdev is called without checking for the NETREG_REGISTERED state (bnc#1188601).
• CVE-2020-3702: Fixed a bug which could be triggered with specifically timed and handcrafted traffic and cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure. (bnc#1191193)
• CVE-2021-3752: Fixed a use after free vulnerability in the Linux kernel's bluetooth module. (bsc#1190023)
• CVE-2021-40490: Fixed a race condition discovered in the ext4 subsystem that could leat to local priviledge escalation. (bnc#1190159)
• CVE-2021-3744: Fixed a bug which could allows attackers to cause a denial of service. (bsc#1189884)
• CVE-2021-3764: Fixed a bug which could allows attackers to cause a denial of service. (bsc#1190534)
• CVE-2021-3772: Fixed a remote denial of service in the SCTP stack, if the attacker can spoof IP addresses and knows the IP-addresses and port numbers being used (bnc#1190351).
• CVE-2018-9517: Fixed possible memory corruption due to a use after free in pppol2tp_connect (bsc#1108488).
• CVE-2019-3874: Fixed possible denial of service attack via SCTP socket buffer used by a userspace applications…

Ilja Van Sprundel discovered that the SCTP implementation in the Linux kernel did not properly perform size validations on incoming packets in some situations. An attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2021-3655)

It was discovered that the AMD Cryptographic Coprocessor (CCP) driver in the Linux kernel did not properly deallocate memory in some error conditions. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2021-3744, CVE-2021-3764)

It was discovered that the NFC subsystem in the Linux kernel contained a use-after-free vulnerability in its NFC Controller Interface (NCI) implementation. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-3760)

It was discovered that an integer overflow could be triggered in the eBPF implementation in the Linux kernel when preallocating objects for stack maps. A privileged local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-41864)

It was discovered that the KVM implementation for POWER8 processors in the Linux kernel did not properly keep track if a wakeup event could be resolved by a guest. An attacker in a guest VM could possibly use this to cause a denial of service (host OS crash). (CVE-2021-43056)

It was discovered that the ISDN CAPI implementation in the Linux kernel contained a race condition in certain situations that could trigger an array out-of-bounds bug. A privileged local attacker could possibly use this to cause a denial of service or execute arbitrary code. (CVE-2021-43389)

It was discovered that the NFC subsystem in the Linux kernel contained a use-after-free vulnerability in its NFC Controller Interface (NCI) implementation. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-3760)

It was discovered that the SCTP protocol implementation in the Linux kernel did not properly verify VTAGs in some situations. A remote attacker could possibly use this to cause a denial of service (connection disassociation). (CVE-2021-3772)

It was discovered that the AMD Radeon GPU driver in the Linux kernel did not properly validate writes in the debugfs file system. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-42327)

Luo Likang discovered that the FireDTV Firewire driver in the Linux kernel did not properly perform bounds checking in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-42739)

It was discovered that the KVM implementation for POWER8 processors in the Linux kernel did not properly keep track if a wakeup event could be resolved by a guest. An attacker in a guest VM could possibly use this to cause a denial of service (host OS crash). (CVE-2021-43056)

It was discovered that the TIPC Protocol implementation in the Linux kernel did not properly validate MSG_CRYPTO messages in some situations. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-43267)

It was discovered that the ISDN CAPI implementation in the Linux kernel contained a race condition in certain situations that could trigger an array out-of-bounds bug. A privileged local attacker could possibly use this to cause a denial of service or execute arbitrary code. (CVE-2021-43389)

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages. (CVE-2021-4002)

It was discovered that a race condition existed in the overlay file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2021-20321)

It was discovered that the NFC subsystem in the Linux kernel contained a use-after-free vulnerability in its NFC Controller Interface (NCI) implementation. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-3760)

It was discovered that an integer overflow could be triggered in the eBPF implementation in the Linux kernel when preallocating objects for stack maps. A privileged local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-41864)

It was discovered that the KVM implementation for POWER8 processors in the Linux kernel did not properly keep track if a wakeup event could be resolved by a guest. An attacker in a guest VM could possibly use this to cause a denial of service (host OS crash). (CVE-2021-43056)

It was discovered that the TIPC Protocol implementation in the Linux kernel did not properly validate MSG_CRYPTO messages in some situations. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-43267)

It was discovered that the ISDN CAPI implementation in the Linux kernel contained a race condition in certain situations that could trigger an array out-of-bounds bug. A privileged local attacker could possibly use this to cause a denial of service or execute arbitrary code. (CVE-2021-43389)

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages. (CVE-2021-4002)

It was discovered that a race condition existed in the timer implementation in the Linux kernel. A privileged attacker could use this to cause a denial of service. (CVE-2021-20317)

It was discovered that a race condition existed in the overlay file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2021-20321)

It was discovered that the NFC subsystem in the Linux kernel contained a use-after-free vulnerability in its NFC Controller Interface (NCI) implementation. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-3760)

It was discovered that an integer overflow could be triggered in the eBPF implementation in the Linux kernel when preallocating objects for stack maps. A privileged local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-41864)

It was discovered that the ISDN CAPI implementation in the Linux kernel contained a race condition in certain situations that could trigger an array out-of-bounds bug. A privileged local attacker could possibly use this to cause a denial of service or execute arbitrary code. (CVE-2021-43389)

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages. (CVE-2021-4002)

It was discovered that the Linux kernel did not properly enforce certain types of entries in the Secure Boot Forbidden Signature Database (aka dbx) protection mechanism. An attacker could use this to bypass UEFI Secure Boot restrictions. (CVE-2020-26541)

It was discovered that a race condition existed in the overlay file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2021-20321)

It was discovered that the NFC subsystem in the Linux kernel contained a use-after-free vulnerability in its NFC Controller Interface (NCI) implementation. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-3760)

It was discovered that an integer overflow could be triggered in the eBPF implementation in the Linux kernel when preallocating objects for stack maps. A privileged local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-41864)

It was discovered that the KVM implementation for POWER8 processors in the Linux kernel did not properly keep track if a wakeup event could be resolved by a guest. An attacker in a guest VM could possibly use this to cause a denial of service (host OS crash). (CVE-2021-43056)

It was discovered that the ISDN CAPI implementation in the Linux kernel contained a race condition in certain situations that could trigger an array out-of-bounds bug. A privileged local attacker could possibly use this to cause a denial of service or execute arbitrary code. (CVE-2021-43389)

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages. (CVE-2021-4002)

It was discovered that the eBPF implementation in the Linux kernel did not properly validate the memory size of certain ring buffer operation arguments. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-4204)

It was discovered that a race condition existed in the overlay file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash). (CVE-2021-20321)

It was discovered that the NFC subsystem in the Linux kernel contained a use-after-free vulnerability in its NFC Controller Interface (NCI) implementation. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-3760)

It was discovered that an integer overflow could be triggered in the eBPF implementation in the Linux kernel when preallocating objects for stack maps. A privileged local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-41864)

It was discovered that the KVM implementation for POWER8 processors in the Linux kernel did not properly keep track if a wakeup event could be resolved by a guest. An attacker in a guest VM could possibly use this to cause a denial of service (host OS crash). (CVE-2021-43056)

It was discovered that the TIPC Protocol implementation in the Linux kernel did not properly validate MSG_CRYPTO messages in some situations. An attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-43267)

It was discovered that the ISDN CAPI implementation in the Linux kernel contained a race condition in certain situations that could trigger an array out-of-bounds bug. A privileged local attacker could possibly use this to cause a denial of service or execute arbitrary code. (CVE-2021-43389)

Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code. (CVE-2021-3609)

Likang Luo discovered that a race condition existed in the Bluetooth subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3752)

It was discovered that the NFC subsystem in the Linux kernel contained a use-after-free vulnerability in its NFC Controller Interface (NCI) implementation. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-3760)

Szymon Heidrich discovered that the USB Gadget subsystem in the Linux kernel did not properly restrict the size of control requests for certain gadget types, leading to possible out of bounds reads or writes. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-39685)

It was discovered that the Ion Memory Manager subsystem in the Linux kernel contained a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-39714)

Eric Biederman discovered that the cgroup process migration implementation in the Linux kernel did not perform permission checks correctly in some situations. A local attacker could possibly use this to gain administrative privileges. (CVE-2021-4197)

Lin Ma discovered that the NFC Controller Interface (NCI) implementation in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-4202)

Sushma Venkatesh Reddy discovered that the Intel i915 graphics driver in the Linux kernel did not perform a GPU TLB flush in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2022-0330)

It was discovered that the PF_KEYv2 implementation in the Linux kernel did not properly initialize kernel memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-1353)

It was discovered that the virtual graphics memory manager implementation in the Linux kernel was subject to a race condition, potentially leading to an information leak. (CVE-2022-1419)

Minh Yuan discovered that the floppy disk driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1652)

It was discovered that the Atheros ath9k wireless device driver in the Linux kernel did not properly handle some error conditions, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-1679)

It was discovered that the Marvell NFC device driver implementation in the Linux kernel did not properly perform memory cleanup operations in some situations, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1734)

It was discovered that some Intel processors did not completely perform cleanup actions on multi-core shared buffers. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21123)

It was discovered that some Intel processors did not completely perform cleanup actions on microarchitectural fill buffers. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21125)

It was discovered that some Intel processors did not properly perform…

Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code. (CVE-2021-3609)

Likang Luo discovered that a race condition existed in the Bluetooth subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3752)

It was discovered that the NFC subsystem in the Linux kernel contained a use-after-free vulnerability in its NFC Controller Interface (NCI) implementation. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-3760)

Szymon Heidrich discovered that the USB Gadget subsystem in the Linux kernel did not properly restrict the size of control requests for certain gadget types, leading to possible out of bounds reads or writes. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-39685)

It was discovered that the Ion Memory Manager subsystem in the Linux kernel contained a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-39714)

Eric Biederman discovered that the cgroup process migration implementation in the Linux kernel did not perform permission checks correctly in some situations. A local attacker could possibly use this to gain administrative privileges. (CVE-2021-4197)

Lin Ma discovered that the NFC Controller Interface (NCI) implementation in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-4202)

Sushma Venkatesh Reddy discovered that the Intel i915 graphics driver in the Linux kernel did not perform a GPU TLB flush in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2022-0330)

It was discovered that the PF_KEYv2 implementation in the Linux kernel did not properly initialize kernel memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-1353)

It was discovered that the virtual graphics memory manager implementation in the Linux kernel was subject to a race condition, potentially leading to an information leak. (CVE-2022-1419)

Minh Yuan discovered that the floppy disk driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1652)

It was discovered that the Atheros ath9k wireless device driver in the Linux kernel did not properly handle some error conditions, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-1679)

It was discovered that the Marvell NFC device driver implementation in the Linux kernel did not properly perform memory cleanup operations in some situations, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1734)

It was discovered that some Intel processors did not completely perform cleanup actions on multi-core shared buffers. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21123)

It was discovered that some Intel processors did not completely perform cleanup actions on microarchitectural fill buffers. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21125)

It was discovered that some Intel processors did not properly perform…