CVE-2021-33909

fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.

fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.

The Linux Kernel, the operating system core itself.

Security Fix(es):

fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.(CVE-2021-33909)

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: size_t-to-int conversion vulnerability in the filesystem layer (CVE-2021-33909)

• kernel: race condition for removal of the HCI controller (CVE-2021-32399)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• pinctrl_emmitsburg: improper configuration (BZ#1963984)

• [Ampere] locking/qrwlock: Fix ordering in queued_write_lock_slowpath (BZ#1964419)

• Rocky Linux8.4 - [P10] [NPIV Multi queue Test kernel- 4.18.0-283.el8.ibmvfc_11022021.ppc64le] DLPAR operation fails for ibmvfc on Denali (ibmvfc/dlpar/Rocky Linux8.4) (BZ#1964697)

• Every server is displaying the same power levels for all of our i40e 25G interfaces. 10G interfaces seem to be correct. Ethtool version is 5.0 (BZ#1967099)

• backport fixes for Connection Tracking offload (BZ#1968679)

• fm10k: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969910)

• ixgbevf: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969911)

• ena: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969913)

• b44, bnx2, bnx2x, bnxt, tg3: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969914)

• e1000, e1000e: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969915)

• ice: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969917)

• igb: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969919)

• igbvf: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969920)

• igc: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969921)

• ixgbe: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969922)

• i40e: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969923)

• iavf: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969925)

• Backport netlink extack tracepoint (BZ#1972938)

• [Rocky Linux8.4] kernel panic when create NPIV port on qedf driver (BZ#1974968)

fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: size_t-to-int conversion vulnerability in the filesystem layer (CVE-2021-33909)

• kernel: race condition for removal of the HCI controller (CVE-2021-32399)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• pinctrl_emmitsburg: improper configuration (BZ#1963984)

• [Ampere] locking/qrwlock: Fix ordering in queued_write_lock_slowpath (BZ#1964419)

• AlmaLinux8.4 - [P10] [NPIV Multi queue Test kernel- 4.18.0-283.el8.ibmvfc_11022021.ppc64le] DLPAR operation fails for ibmvfc on Denali (ibmvfc/dlpar/AlmaLinux8.4) (BZ#1964697)

• Every server is displaying the same power levels for all of our i40e 25G interfaces. 10G interfaces seem to be correct. Ethtool version is 5.0 (BZ#1967099)

• backport fixes for Connection Tracking offload (BZ#1968679)

• fm10k: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969910)

• ixgbevf: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969911)

• ena: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969913)

• b44, bnx2, bnx2x, bnxt, tg3: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969914)

• e1000, e1000e: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969915)

• ice: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969917)

• igb: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969919)

• igbvf: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969920)

• igc: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969921)

• ixgbe: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969922)

• i40e: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969923)

• iavf: removal of MODULE_VERSION deemed improper for y-stream release (BZ#1969925)

• Backport netlink extack tracepoint (BZ#1972938)

• [AlmaLinux8.4] kernel panic when create NPIV port on qedf driver (BZ#1974968)

fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.

• ELS-130: netfilter: x_tables: add missing tables zeroing
• CLKRN-800: CVE-2021-33909: seq_file: disallow extremely large seq buffer allocation

• ELS-130: netfilter: x_tables: add missing tables zeroing
• CLKRN-800: CVE-2021-33909: seq_file: disallow extremely large seq buffer allocation

• ELS-138: netfilter: x_tables: add missing tables zeroing
• ELS-138: CVE-2021-33909: seq_file: disallow extremely large seq buffer allocation
• ELS-138: CVE-2021-22555: netfilter: x_tables: fix compat match/target pad out-of-bound write
• ELS-138: CVE-2020-29661: tty: Fix ->pgrp locking in tiocspgrp()
• ELS-138: CVE-2020-25656: vt: keyboard, extend func_buf_lock to readers
• ELS-138: CVE-2020-25656: tty/vt: fix write/write race in ioctl(KDSKBSENT) handler
• ELS-138: CVE-2020-25656: vt: keyboard, simplify vt_kdgkbsent
• ELS-138: CVE-2020-25211: netfilter: ctnetlink: add a range check for l3/l4 protonum
• ELS-138: CKSIX-276: CVE-2019-19532: HID: Fix assumption that devices have inputs
• ELS-138: CVE-2021-27365: scsi: iscsi: Ensure sysfs attributes are limited to PAGE_SIZE
• ELS-138: CVE-2021-27365: scsi: iscsi: Verify lengths on passthrough PDUs
• ELS-138: CVE-2021-27363: CVE-2021-27364: scsi: iscsi: Restrict sessions and handles to admin capabilities
• ELS-138: sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output
• ELS-138: USB: hso: Fix OOB memory access in hso_probe/hso_get_config_data
• ELS-138: CVE-2019-14615: drm/i915/gen9: Clear residual context state on context switch
• ELS-138: CVE-2020-8647, CVE-2020-8649: vgacon: Fix a UAF in vgacon_invert_region
• ELS-138: CVE-2020-14331: vgacon: Fix for missing check in scrollback handling
• ELS-138: CVE-2021-3347: futex: Handle faults correctly for PI futexes
• ELS-138: CVE-2021-3347: futex: Provide and use pi_state_update_owner()
• ELS-138: KEYS: allow reaching the keys quotas exactly
• ELS-138: KEYS: reaching the keys quotas correctly
• ELS-138: fix -ENOMEM result with invalid user space pointer in sendto() syscall
• ELS-138: CVE-2017-18344: posix-timer: Properly check sigevent->sigev_notify
• ELS-138: CVE-2018-6927: futex: Prevent overflow by strengthen input validation
• ELS-138: CVE-2017-6951: KEYS: Change the name of the dead type to ".dead" to prevent user access
• ELS-138: CVE-2017-15299: KEYS: don't let add_key() update an uninstantiated key
• ELS-138: fix CVE-2016-9604
• ELS-138: KEYS: add missing permission check for request_key() destination
• ELS-138: CVE-2017-10661: timerfd: Protect the might cancel mechanism proper
• ELS-138: fix CVE-2017-7472
• ELS-138: fix CVE-2017-15274

It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code.(CVE-2021-3600)

It was discovered that the virtual file system implementation in the Linux kernel contained an unsigned to signed integer conversion error. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code.(CVE-2021-33909)

Maxim Levitsky discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not properly prevent a guest VM from enabling AVIC in nested guest VMs. An attacker in a guest VM could use this to write to portions of the host's physical memory.(CVE-2021-3653)

Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel allowed a guest VM to disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a guest VM could use this to read or write portions of the host's physical memory.(CVE-2021-3656)

Andy Nguyen discovered that the netfilter subsystem in the Linux kernel contained an out-of-bounds write in its setsockopt() implementation. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.(CVE-2021-22555)

It was discovered that the virtual file system implementation in the Linux kernel contained an unsigned to signed integer conversion error. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code.(CVE-2021-33909)

The BPF subsystem in the Linux kernel before 4.17 mishandles situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. This affects kernel/bpf/core.c and net/core/filter.c.(CVE-2018-25020)

Maxim Levitsky discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not properly prevent a guest VM from enabling AVIC in nested guest VMs. An attacker in a guest VM could use this to write to portions of the host's physical memory.(CVE-2021-3653)

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)

Andy Nguyen discovered that the netfilter subsystem in the Linux kernel contained an out-of-bounds write in its setsockopt() implementation. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.(CVE-2021-22555)

It was discovered that the virtual file system implementation in the Linux kernel contained an unsigned to signed integer conversion error. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code.(CVE-2021-33909)

This kernel update is based on upstream 5.10.52 and fixes at least the following security issues:

There is a race condition in net/can/bcm.c that can lead to local privilege escalation to root (CVE-2021-3609).

A vulnerability was found in the Linux kernel. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory (CVE-2021-3655).

fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user (CVE-2021-33909).

Other fixes in this update:

• rtl8xxxu: disable interrupt_in transfer for 8188cu and 8192cu

For other upstream fixes, see the referenced changelogs.

This kernel-linus update is based on upstream 5.10.52 and fixes at least the following security issues:

There is a race condition in net/can/bcm.c that can lead to local privilege escalation to root (CVE-2021-3609).

A vulnerability was found in the Linux kernel. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory (CVE-2021-3655).

fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user (CVE-2021-33909).

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-2021-22555: A heap out-of-bounds write affecting Linux was discovered in net/netfilter/x_tables.c (bnc#1188116).
• CVE-2021-33909: fs/seq_file.c did not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05 (bnc#1188062).
• CVE-2021-3609: A use-after-free in can/bcm could have led to privilege escalation (bsc#1187215).
• CVE-2021-3612: An out-of-bounds memory write flaw was found in the joystick devices subsystem in versions before 5.9-rc1, in the way the user calls ioctl JSIOCSBTNMAP. This flaw allowed a local user to crash the system or possibly escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability (bnc#1187585 ).
• CVE-2021-35039: kernel/module.c in the Linux kernel mishandled Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, did not occur for a module.sig_enforce=1 command-line argument (bnc#1188080).

The following non-security bugs were fixed:

• ACPI: APEI: fix synchronous external aborts in user-mode (git-fixes).
• ACPI: bus: Call kobject_put() in acpi_init() error path (git-fixes).
• ACPICA: Fix memory leak caused by _CID repair function (git-fixes).
• ACPI: EC: Make more Asus laptops use ECDT _GPE (git-fixes).
• ACPI: processor idle: Fix up C-state latency if not ordered (git-fixes).
• ACPI: property: Constify stubs for CONFIG_ACPI=n case (git-fixes).
• ACPI: resources: Add checks for ACPI IRQ override (git-fixes).
• ACPI: sysfs: Fix a buffer overrun problem with description_show() (git-fixes).
• ALSA: hda/realtek: Add another ALC236 variant support (git-fixes).
• ALSA: hda/realtek: Fix bass speaker DAC mapping for Asus UM431D (git-fixes).
• ALSA: intel8x0: Fix breakage at ac97 clock measurement (git-fixes).
• ALSA: isa: Fix error return code in snd_cmi8330_probe() (git-fixes).
• ALSA: usb-audio: fix rate on Ozone Z90 USB headset (git-fixes).
• ALSA: usb-audio: scarlett2: Fix wrong resume call (git-fixes).
• ALSA: usb-audio: scarlett2: Read mixer volumes at init time (git-fixes).
• ALSA: usb-audio: scarlett2: Read mux at init time (git-fixes).
• amdgpu: fix GEM obj leak in amdgpu_display_user_framebuffer_create (bsc#1152472)
• ARM: ensure the signal page contains defined contents (bsc#1188445).
• ASoC: atmel-i2s: Fix usage of capture and playback at the same time (git-fixes).
• ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK (git-fixes).
• ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup() (git-fixes).
• ASoC: mediatek: mtk-btcvsd: Fix an error handling path in 'mtk_btcvsd_snd_probe()' (git-fixes).
• ASoC: rsnd: tidyup loop on rsnd_adg_clk_query() (git-fixes).
• ASoC: tegra: Set driver_name=tegra for all machine drivers (git-fixes).
• ata: ahci_sunxi: Disable DIPM (git-fixes).
• ath10k: add missing error return code in ath10k_pci_probe() (git-fixes).
• ath10k: Fix an error code in ath10k_add_interface() (git-fixes).
• ath10k: go to path err_unsupported when chip id is not supported (git-fixes).
• ath10k: remove unused more_frags variable (git-fixes).
• ath9k: Fix kernel NULL pointer dereference during ath_reset_internal() (git-fixes).
• backlight: lm3630a_bl: Put fwnode in error case during ->probe() (git-fixes).
• blk-mq: Add blk_mq_delay_run_hw_queues() API call (bsc#1180092).
• blk-mq: In blk_mq_dispatch_rq_list() 'no budget' is a reason to kick (bsc#1180092).
• blk-mq: insert flush request to the front of dispatch queue (bsc#1180092).
• blk-mq: insert passthrough request into hctx->dispatch directly (bsc#1180092).
• blk-mq: Put driver tag in blk_mq_dispatch_rq_list() when no budget (bsc#1180092).
• blk-mq: Rerun dispatching in the case…

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

The following security bugs were fixed:

• CVE-2021-22555: A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c (bnc#1188116 ).
• CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to obtain full root privileges (bsc#1188062).

The following non-security bugs were fixed:

• ceph: must hold snap_rwsem when filling inode for async create (bsc#1187927).
• cgroup1: do not allow '\n' in renaming (bsc#1187972).
• qla2xxx: synchronize rport dev_loss_tmo setting (bsc#1182470 bsc#1185486).
• scsi: ufs: ufshcd-pltfrm depends on HAS_IOMEM (bsc#1187980).
• usb: dwc3: Fix debugfs creation flow (git-fixes).
• x86/pkru: Write hardware init value to PKRU when xstate is init (bsc#1152489).
• x86/process: Check PF_KTHREAD and not current->mm for kernel threads (bsc#1152489).

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

Security issues fixed:

• CVE-2021-22555: A heap out-of-bounds write was discovered in net/netfilter/x_tables.c (bnc#1188116).
• CVE-2021-33909: Extremely large seq buffer allocations in seq_file could lead to buffer underruns and code execution (bsc#1188062).

The following non-security bugs were fixed:

• usb: dwc3: Fix debugfs creation flow (git-fixes).

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

The following security bugs were fixed:

• CVE-2021-22555: Fixed an heap out-of-bounds write in net/netfilter/x_tables.c that could allow local provilege escalation. (bsc#1188116)
• CVE-2021-33624: Fixed a bug which allows unprivileged BPF program to leak the contents of arbitrary kernel memory (and therefore, of all physical memory) via a side-channel. (bsc#1187554)
• CVE-2021-0605: Fixed an out-of-bounds read which could lead to local information disclosure in the kernel with System execution privileges needed. (bsc#1187601)
• CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to local escalation of privilege with no additional execution privileges needed. (bsc#1187595)
• CVE-2020-26558: Fixed a flaw in the Bluetooth LE and BR/EDR secure pairing that could permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing. (bnc#1179610)
• CVE-2021-34693: Fixed a bug in net/can/bcm.c which could allow local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized. (bsc#1187452)
• CVE-2021-0129: Fixed an improper access control in BlueZ that may have allowed an authenticated user to potentially enable information disclosure via adjacent access. (bnc#1186463)
• CVE-2020-36386: Fixed an out-of-bounds read in hci_extended_inquiry_result_evt. (bsc#1187038)
• CVE-2020-24588: Fixed a bug that could allow an adversary to abuse devices that support receiving non-SSP A-MSDU frames to inject arbitrary network packets. (bsc#1185861 bsc#1185863)
• CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to andobtain full root privileges. (bsc#1188062)
• CVE-2021-3609: Fixed a race condition in the CAN BCM networking protocol which allows for local privilege escalation. (bsc#1187215)
• CVE-2020-36385: Fixed a use-after-free flaw in ucma.c which allows for local privilege escalation. (bsc#1187050)
• CVE-2021-33200: Fix leakage of uninitialized bpf stack under speculation. (bsc#1186484)

The following non-security bugs were fixed:

• af_packet: fix the tx skb protocol in raw sockets with ETH_P_ALL (bsc#1176081).
• kabi: preserve struct header_ops after bsc#1176081 fix (bsc#1176081).
• net: Do not set transport offset to invalid value (bsc#1176081).
• net: Introduce parse_protocol header_ops callback (bsc#1176081).
• net/ethernet: Add parse_protocol header_ops support (bsc#1176081).
• net/mlx5e: Remove the wrong assumption about transport offset (bsc#1176081).
• net/mlx5e: Trust kernel regarding transport offset (bsc#1176081).
• net/packet: Ask driver for protocol if not provided by user (bsc#1176081).
• net/packet: Remove redundant skb->protocol set (bsc#1176081).
• resource: Fix find_next_iomem_res() iteration issue (bsc#1181193).
• scsi: scsi_dh_alua: Retry RTPG on a different path after failure (bsc#1174978 bsc#1185701).
• SUNRPC in case of backlog, hand free slots directly to waiting task (bsc#1185428).
• SUNRPC: More fixes for backlog congestion (bsc#1185428).
• x86/crash: Add e820 reserved ranges to kdump kernel's e820 table (bsc#1181193).
• x86/debug: Extend the lower bound of crash kernel low reservations (bsc#1153720).
• x86/e820, ioport: Add a new I/O resource descriptor IORES_DESC_RESERVED (bsc#1181193).
• x86/mm: Rework ioremap resource mapping determination (bsc#1181193).

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…

These are all security issues fixed in the kernel-devel-5.14.6-1.4 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the kernel-devel-longterm-6.6.17-1.1 package on the GA media of openSUSE Tumbleweed.

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

The following security bugs were fixed:

• CVE-2021-22555: Fixed an heap out-of-bounds write in net/netfilter/x_tables.c that could allow local provilege escalation. (bsc#1188116)
• CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to obtain full root privileges. (bsc#1188062)
• CVE-2021-3609: Fixed a race condition in the CAN BCM networking protocol which allows for local privilege escalation. (bsc#1187215)
• CVE-2021-0605: Fixed an out-of-bounds read which could lead to local information disclosure in the kernel with System execution privileges needed. (bsc#1187601)
• CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to local escalation of privilege with no additional execution privileges needed. (bsc#1187595)
• CVE-2021-34693: Fixed a bug in net/can/bcm.c which could allow local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized. (bsc#1187452)
• CVE-2020-36385: Fixed a use-after-free flaw in ucma.c which allows for local privilege escalation. (bsc#1187050)
• CVE-2021-0129: Fixed an improper access control in BlueZ that may have allowed an authenticated user to potentially enable information disclosure via adjacent access. (bsc#1186463)
• CVE-2020-26558: Fixed a flaw in the Bluetooth LE and BR/EDR secure pairing that could permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing. (bsc#1179610)
• CVE-2020-36386: Fixed an out-of-bounds read in hci_extended_inquiry_result_evt. (bsc#1187038)
• CVE-2020-24588: Fixed a bug that could allow an adversary to abuse devices that support receiving non-SSP A-MSDU frames to inject arbitrary network packets. (bsc#1185861)
• CVE-2021-32399: Fixed a race condition in net/bluetooth/hci_request.c for removal of the HCI controller. (bsc#1184611)
• CVE-2021-33034: Fixed an issue in net/bluetooth/hci_event.c where a use-after-free leads to writing an arbitrary value. (bsc#1186111)
• CVE-2020-26139: Fixed a bug that allows an Access Point (AP) to forward EAPOL frames to other clients even though the sender has not yet successfully authenticated. This might be abused in projected Wi-Fi networks to launch denial-of-service attacks against connected clients and made it easier to exploit other vulnerabilities in connected clients. (bsc#1186062)
• CVE-2021-23134: Fixed a use After Free vulnerability in nfc sockets which allows local attackers to elevate their privileges. (bsc#1186060)
• CVE-2020-24586: Fixed a bug that, under the right circumstances, allows to inject arbitrary network packets and/or exfiltrate user data when another device sends fragmented frames encrypted using WEP, CCMP, or GCMP. (bsc#1185859)
• CVE-2020-26141: Fixed a flaw that could allows an adversary to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol. (bsc#1185987)
• CVE-2020-26145: Fixed a bug in the WEP, WPA, WPA2, and WPA3 implementations that could allows an adversary to inject arbitrary network packets. (bsc#1185860)
• CVE-2020-24587: Fixed a bug that allows an adversary to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed. (bsc#1185862)
• CVE-2020-26147: Fixed a bug in the WEP, WPA, WPA2, and WPA3 implementations that could allows an adversary to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames. (bsc#1185987)

The following non-security bugs were fixed:

• kABI: Fix kABI after modifying struct __call_single_data (bsc#1180846).
• kernel/smp: add boot parameter for controlling CSD lock debugging (bsc#1180846).
• kernel/smp: Add source and destination CPUs to __call_single_data (bsc#1180846).
• kernel/smp: make csdlock timeout depend on boot parameter (bsc#1180846).
• kernel/smp: Provide CSD lock…

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

The following security bugs were fixed:

• CVE-2021-22555: Fixed an heap out-of-bounds write in net/netfilter/x_tables.c that could allow local provilege escalation. (bnc#1188116)
• CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to andobtain full root privileges (bsc#1188062).
• CVE-2021-3609: Fixed a race condition in the CAN BCM networking protocol which allows for local privilege escalation (bsc#1187215).
• CVE-2021-3612: Fixed an out-of-bounds memory write flaw which could allows a local user to crash the system or possibly escalate their privileges on the system. (bsc#1187585)
• CVE-2020-36385: Fixed a use-after-free flaw in ucma.c which allows for local privilege escalation (bsc#1187050).

The following non-security bugs were fixed:

• ACPI: property: Constify stubs for CONFIG_ACPI=n case (git-fixes).
• ACPI: sysfs: Fix a buffer overrun problem with description_show() (git-fixes).
• ALSA: isa: Fix error return code in snd_cmi8330_probe() (git-fixes).
• arm_pmu: Fix write counter incorrect in ARMv7 big-endian mode (git-fixes).
• arm64/mm: Fix ttbr0 values stored in struct thread_info for software-pan (git-fixes).
• ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK (git-fixes).
• ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup() (git-fixes).
• ata: ahci_sunxi: Disable DIPM (git-fixes).
• ath10k: Fix an error code in ath10k_add_interface() (git-fixes).
• Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid (git-fixes).
• brcmfmac: correctly report average RSSI in station info (git-fixes).
• brcmfmac: fix setting of station info chains bitmask (git-fixes).
• brcmsmac: mac80211_if: Fix a resource leak in an error handling path (git-fixes).
• can: flexcan: disable completely the ECC mechanism (git-fixes).
• can: gw: synchronize rcu operations before removing gw job entry (git-fixes).
• can: hi311x: hi3110_can_probe(): silence clang warning (git-fixes).
• can: peak_pciefd: pucan_handle_status(): fix a potential starvation issue in TX path (git-fixes).
• can: xilinx_can: xcan_chip_start(): fix failure with invalid bus (git-fixes).
• cfg80211: call cfg80211_leave_ocb when switching away from OCB (git-fixes).
• char: pcmcia: error out if 'num_bytes_read' is greater than 4 in set_protocol() (git-fixes).
• crypto: cavium/nitrox - Fix an error rhandling path in 'nitrox_probe()' (git-fixes).
• crypto: ccp - Fix a resource leak in an error handling path (12sp5).
• cxgb4: fix wrong shift (git-fixes).
• drm: qxl: ensure surf.data is ininitialized (git-fixes).
• drm/nouveau: wait for moving fence after pinning v2 (git-fixes).
• drm/radeon: wait for moving fence after pinning (git-fixes).
• drm/rockchip: cdn-dp-core: add missing clk_disable_unprepare() on error in cdn_dp_grf_write() (git-fixes).
• extcon: max8997: Add missing modalias string (git-fixes).
• extcon: sm5502: Drop invalid register write in sm5502_reg_data (git-fixes).
• fpga: stratix10-soc: Add missing fpga_mgr_free() call (git-fixes).
• fuse: check connected before queueing on fpq->io (bsc#1188273).
• fuse: reject internal errno (bsc#1188274).
• genirq: Disable interrupts for force threaded handlers (git-fixes)
• genirq: Fix reference leaks on irq affinity notifiers (git-fixes)
• genirq: Let GENERIC_IRQ_IPI select IRQ_DOMAIN_HIERARCHY (git-fixes)
• genirq/irqdomain: Do not try to free an interrupt that has no (git-fixes)
• gve: Fix swapped vars when fetching max queues (git-fixes).
• HID: Add BUS_VIRTUAL to hid_connect logging (git-fixes).
• HID: gt683r: add missing MODULE_DEVICE_TABLE (git-fixes).
• HID: hid-sensor-hub: Return error for hid_set_field() failure (git-fixes).
• HID: usbhid: fix info leak in hid_submit_ctrl (git-fixes).
• hwmon: (max31722) Remove non-standard ACPI device IDs (git-fixes).
• hwmon: (max31790) Fix fan speed reporting for fan7..12 (git-fixes).
• i2c: robotfuzz-osif: fix…