CVE-2020-10942

In the Linux kernel before 5.5.8, get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls.

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

Security Fix(es):

• kernel: use after free in the video driver leads to local privilege escalation (CVE-2019-9458)

• kernel: use-after-free in drivers/bluetooth/hci_ldisc.c (CVE-2019-15917)

• kernel: out-of-bounds access in function hclge_tm_schd_mode_vnet_base_cfg (CVE-2019-15925)

• kernel: memory leak in ccp_run_sha_cmd() (CVE-2019-18808)

• kernel: Denial Of Service in the __ipmi_bmc_register() (CVE-2019-19046)

• kernel: out-of-bounds write in ext4_xattr_set_entry (CVE-2019-19319)

• Kernel: kvm: OOB memory write via kvm_dev_ioctl_get_cpuid (CVE-2019-19332)

• kernel: use-after-free in ext4_put_super (CVE-2019-19447)

• kernel: a malicious USB device in the drivers/input/ff-memless.c leads to use-after-free (CVE-2019-19524)

• kernel: race condition caused by a malicious USB device in the USB character device driver layer (CVE-2019-19537)

• kernel: use-after-free in serial_ir_init_module() (CVE-2019-19543)

• kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry (CVE-2019-19767)

• kernel: use-after-free in debugfs_remove (CVE-2019-19770)

• kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)

• kernel: possible use-after-free due to a race condition in cdev_get (CVE-2020-0305)

• kernel: out-of-bounds read in in vc_do_resize function (CVE-2020-8647)

• kernel: use-after-free in n_tty_receive_buf_common function (CVE-2020-8648)

• kernel: invalid read location in vgacon_invert_region function (CVE-2020-8649)

• kernel: uninitialized kernel data leak in userspace coredumps (CVE-2020-10732)

• kernel: SELinux netlink permission check bypass (CVE-2020-10751)

• kernel: out-of-bounds write in mpol_parse_str (CVE-2020-11565)

• kernel: mishandles invalid descriptors in drivers/media/usb/gspca/xirlink_cit.c (CVE-2020-11668)

• kernel: buffer overflow in mt76_add_fragment function (CVE-2020-12465)

• kernel: xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write which could result in crash and data coruption (CVE-2020-12659)

• kernel: sg_write function lacks an sg_remove_request call in a certain failure case (CVE-2020-12770)

• kernel: possible to send arbitrary signals to a privileged (suidroot) parent process (CVE-2020-12826)

• kernel: referencing inode of removed superblock in get_futex_key() causes UAF (CVE-2020-14381)

• kernel: soft-lockups in iov_iter_copy_from_user_atomic() could result in DoS (CVE-2020-25641)

• kernel: kernel pointer leak due to WARN_ON statement in video driver leads to local information disclosure (CVE-2019-9455)

• kernel: null pointer dereference in dlpar_parse_cc_property (CVE-2019-12614)

• kernel: null-pointer dereference in drivers/net/fjes/fjes_main.c (CVE-2019-16231)

• kernel: null pointer dereference in drivers/scsi/qla2xxx/qla_os.c (CVE-2019-16233)

• kernel: memory leak in af9005_identify_state() function (CVE-2019-18809)

• kernel: A memory leak in the mwifiex_pcie_alloc_cmdrsp_buf() function (CVE-2019-19056)

• kernel: memory leak in the crypto_report() function (CVE-2019-19062)

• kernel: Two memory leaks in the rtl_usb_probe() function (CVE-2019-19063)

• kernel: A memory leak in the rtl8xxxu_submit_int_urb() function (CVE-2019-19068)

• kernel: A memory leak in the predicate_parse() function (CVE-2019-19072)

• kernel: information leak bug caused by a malicious USB device in the drivers/media/usb/ttusb-dec/ttusb_dec.c (CVE-2019-19533)

• kernel: Null pointer dereference in drop_sysctl_table() (CVE-2019-20054)

• kernel: kernel stack information leak on s390/s390x (CVE-2020-10773)

• kernel: possibility of memory disclosure when reading the file /proc/sys/kernel/rh_features (CVE-2020-10774)

• kernel: vhost-net: stack overflow in get_raw_socket while checking sk_family field (CVE-2020-10942)

• kernel: sync of excessive duration via an XFS v5 image with crafted metadata (CVE-2020-12655)

The openSUSE Leap 15.1 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-11669: An issue was discovered on the powerpc platform. arch/powerpc/kernel/idle_book3s.S did not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR, aka CID-53a712bae5dd (bnc#1169390).
• CVE-2020-8834: KVM on Power8 processors had a conflicting use of HSTATE_HOST_R1 to store r1 state in kvmppc_hv_entry plus in kvmppc_{save,restore}_tm, leading to a stack corruption. Because of this, an attacker with the ability run code in kernel space of a guest VM can cause the host kernel to panic. There were two commits that, according to the reporter, introduced the vulnerability: f024ee098476 ('KVM: PPC: Book3S HV: Pull out TM state save/restore into separate procedures') 87a11bb6a7f7 ('KVM: PPC: Book3S HV: Work around XER[SO] bug in fake suspend mode') (bnc#1168276).
• CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL, aka CID-b9258a2cece4 (bnc#1168424).
• CVE-2019-9458: In the video driver there is a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation (bnc#1168295).
• CVE-2019-3701: An issue was discovered in can_can_gw_rcv in net/can/gw.c. The CAN frame modification rules allow bitwise logical operations that can be also applied to the can_dlc field. The privileged user 'root' with CAP_NET_ADMIN can create a CAN frame modification rule that made the data length code a higher value than the available CAN frame data size. In combination with a configured checksum calculation where the result is stored relatively to the end of the data (e.g. cgw_csum_xor_rel) the tail of the skb (e.g. frag_list pointer in skb_shared_info) can be rewritten which finally can cause a system crash. Because of a missing check, the CAN drivers may write arbitrary content beyond the data registers in the CAN controller's I/O memory when processing can-gw manipulated outgoing frames (bnc#1120386).
• CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacked validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).
• CVE-2019-19770: A use-after-free in the debugfs_remove function in fs/debugfs/inode.c was fixed. (bnc#1159198).

The following non-security bugs were fixed:

• ACPI: watchdog: Fix gas->access_width usage (bsc#1051510).
• ACPICA: Introduce ACPI_ACCESS_BYTE_WIDTH() macro (bsc#1051510).
• ALSA: ali5451: remove redundant variable capture_flag (bsc#1051510).
• ALSA: core: Add snd_device_get_state() helper (bsc#1051510).
• ALSA: core: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: emu10k1: Fix endianness annotations (bsc#1051510).
• ALSA: hda/ca0132 - Add Recon3Di quirk to handle integrated sound on EVGA X99 Classified motherboard (bsc#1051510).
• ALSA: hda/ca0132 - Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda/realtek - Enable headset mic of Acer X2660G with ALC662 (git-fixes).
• ALSA: hda/realtek - Enable the headset of Acer N50-600 with ALC662 (git-fixes).
• ALSA: hda/realtek - Remove now-unnecessary XPS 13 headphone noise fixups (bsc#1051510).
• ALSA: hda/realtek - Set principled PC Beep configuration for ALC256 (bsc#1051510).
• ALSA: hda/realtek - a fake key event is triggered by running shutup (bsc#1051510).
• ALSA: hda/realtek: Enable mute LED on an HP system (bsc#1051510).
• ALSA: hda/realtek: Fix pop noise on ALC225 (git-fixes).
• ALSA: hda: Fix potential access overflow in beep helper (bsc#1051510).
• ALSA: hda: Use scnprintf() for string truncation (bsc#1051510).
• ALSA: hda:…

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

The following security bugs were fixed:

• CVE-2020-8834: KVM on Power8 processors had a conflicting use of HSTATE_HOST_R1 to store r1 state in kvmppc_hv_entry plus in kvmppc_{save,restore}_tm, leading to a stack corruption. Because of this, an attacker with the ability to run code in kernel space of a guest VM can cause the host kernel to panic (bnc#1168276).
• CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).
• CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).
• CVE-2020-8647: Fixed a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bnc#1162929).
• CVE-2020-8649: Fixed a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bnc#1162931).
• CVE-2020-9383: Fixed an issue in set_fdc in drivers/block/floppy.c, which leads to a wait_til_ready out-of-bounds read (bnc#1165111).
• CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).
• CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).
• CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bnc#1159285).
• CVE-2019-19770: Fixed a use-after-free in the debugfs_remove function (bsc#1159198).
• CVE-2018-20836: Fixed a race condition in smp_task_timedout() and smp_task_done() in drivers/scsi/libsas/sas_expander.c, which potentially cloud have led to a use-after-free (bnc#1134395).

The following non-security bugs were fixed:

• ACPICA: Introduce ACPI_ACCESS_BYTE_WIDTH() macro (bsc#1051510).
• ACPI: watchdog: Fix gas->access_width usage (bsc#1051510).
• ALSA: ali5451: remove redundant variable capture_flag (bsc#1051510).
• ALSA: core: Add snd_device_get_state() helper (bsc#1051510).
• ALSA: core: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: emu10k1: Fix endianness annotations (bsc#1051510).
• ALSA: hda/ca0132 - Add Recon3Di quirk to handle integrated sound on EVGA X99 Classified motherboard (bsc#1051510).
• ALSA: hda/ca0132 - Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda_codec: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda: default enable CA0132 DSP support (bsc#1051510).
• ALSA: hda/realtek - Add Headset Button supported for ThinkPad X1 (bsc#1111666).
• ALSA: hda/realtek - Add Headset Mic supported (bsc#1111666).
• ALSA: hda/realtek - Add more codec supported Headset Button (bsc#1111666).
• ALSA: hda/realtek - a fake key event is triggered by running shutup (bsc#1051510).
• ALSA: hda/realtek - Apply quirk for MSI GP63, too (bsc#1111666).
• ALSA: hda/realtek - Apply quirk for yet another MSI laptop (bsc#1111666).
• ALSA: hda/realtek - Enable headset mic of Acer X2660G with ALC662 (git-fixes).
• ALSA: hda/realtek: Enable mute LED on an HP system (bsc#1051510).
• ALSA: hda/realtek - Enable the headset of Acer N50-600 with ALC662 (git-fixes).
• ALSA: hda/realtek - Enable the headset of ASUS B9450FA with ALC294 (bsc#1111666).
• ALSA: hda/realtek - Fix a regression for mute led on Lenovo Carbon X1 (bsc#1111666).
• ALSA: hda/realtek: Fix pop noise on ALC225 (git-fixes).
• ALSA: hda/realtek - Fix silent output on Gigabyte X570 Aorus Master (bsc#1111666).
• ALSA: hda/realtek - Remove now-unnecessary XPS 13 headphone noise fixups (bsc#1051510).
• ALSA: hda/realtek - Set principled PC Beep configuration for ALC256…

The SUSE Linux Enterprise 12 SP4 RT kernel was updated to 3.12.31 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-8834: KVM on Power8 processors had a conflicting use of HSTATE_HOST_R1 to store r1 state in kvmppc_hv_entry plus in kvmppc_{save,restore}_tm, leading to a stack corruption. Because of this, an attacker with the ability to run code in kernel space of a guest VM can cause the host kernel to panic (bnc#1168276).
• CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).
• CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).
• CVE-2020-8647: Fixed a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bnc#1162929).
• CVE-2020-8649: Fixed a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bnc#1162931).
• CVE-2020-9383: Fixed an issue in set_fdc in drivers/block/floppy.c, which leads to a wait_til_ready out-of-bounds read (bnc#1165111).
• CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).
• CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).
• CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bnc#1159285).
• CVE-2019-19770: Fixed a use-after-free in the debugfs_remove function (bsc#1159198).

The following non-security bugs were fixed:

• ACPICA: Introduce ACPI_ACCESS_BYTE_WIDTH() macro (bsc#1051510).
• ACPI: watchdog: Fix gas->access_width usage (bsc#1051510).
• ALSA: ali5451: remove redundant variable capture_flag (bsc#1051510).
• ALSA: core: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: emu10k1: Fix endianness annotations (bsc#1051510).
• ALSA: hda/ca0132 - Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda_codec: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda: Fix potential access overflow in beep helper (bsc#1051510).
• ALSA: hda/realtek: Fix pop noise on ALC225 (git-fixes).
• ALSA: hda/realtek - Set principled PC Beep configuration for ALC256 (bsc#1051510).
• ALSA: hda: remove redundant assignment to variable timeout (bsc#1051510).
• ALSA: hda: Use scnprintf() for string truncation (bsc#1051510).
• ALSA: hdsp: remove redundant assignment to variable err (bsc#1051510).
• ALSA: ice1724: Fix invalid access for enumerated ctl items (bsc#1051510).
• ALSA: info: remove redundant assignment to variable c (bsc#1051510).
• ALSA: korg1212: fix if-statement empty body warnings (bsc#1051510).
• ALSA: line6: Fix endless MIDI read loop (git-fixes).
• ALSA: pcm: oss: Avoid plugin buffer overflow (git-fixes).
• ALSA: pcm: oss: Fix regression by buffer overflow fix (bsc#1051510).
• ALSA: pcm: oss: Remove WARNING from snd_pcm_plug_alloc() checks (git-fixes).
• ALSA: seq: oss: Fix running status after receiving sysex (git-fixes).
• ALSA: seq: virmidi: Fix running status after receiving sysex (git-fixes).
• ALSA: usx2y: Adjust indentation in snd_usX2Y_hwdep_dsp_status (bsc#1051510).
• ALSA: via82xx: Fix endianness annotations (bsc#1051510).
• ASoC: dapm: Correct DAPM handling of active widgets during shutdown (bsc#1051510).
• ASoC: Intel: atom: Take the drv->lock mutex before calling sst_send_slot_map() (bsc#1051510).
• ASoC: Intel: mrfld: fix incorrect check on p->sink (bsc#1051510).
• ASoC: Intel: mrfld: return error codes when an error occurs (bsc#1051510).
• ASoC: jz4740-i2s: Fix divider written at incorrect offset in…

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

The following security bugs were fixed:

• CVE-2020-8834: KVM on Power8 processors had a conflicting use of HSTATE_HOST_R1 to store r1 state in kvmppc_hv_entry plus in kvmppc_{save,restore}_tm, leading to a stack corruption. Because of this, an attacker with the ability to run code in kernel space of a guest VM can cause the host kernel to panic (bnc#1168276).
• CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).
• CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).
• CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).
• CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).
• CVE-2019-19770: Fixed a use-after-free in the debugfs_remove function (bsc#1159198).
• CVE-2020-11669: Fixed an issue where arch/powerpc/kernel/idle_book3s.S did not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR (bnc#1169390).
• CVE-2020-8647: There was a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bnc#1162929).
• CVE-2020-8649: There was a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bnc#1162931).
• CVE-2020-9383: An issue was discovered set_fdc in drivers/block/floppy.c leads to a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it (bnc#1165111).
• CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bnc#1159285).
• CVE-2020-2732: Fixed a flaw in the KVM hypervisor instruction emulation for L2 guests. Under some circumstances, an L2 guest may have tricked the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest (bnc#1163971).

The following non-security bugs were fixed:

• ACPICA: Introduce ACPI_ACCESS_BYTE_WIDTH() macro (bsc#1051510).
• ACPI: watchdog: Fix gas->access_width usage (bsc#1051510).
• ahci: Add support for Amazon's Annapurna Labs SATA controller (bsc#1169013).
• ALSA: ali5451: remove redundant variable capture_flag (bsc#1051510).
• ALSA: core: Add snd_device_get_state() helper (bsc#1051510).
• ALSA: core: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: emu10k1: Fix endianness annotations (bsc#1051510).
• ALSA: hda/ca0132 - Add Recon3Di quirk to handle integrated sound on EVGA X99 Classified motherboard (bsc#1051510).
• ALSA: hda/ca0132 - Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda_codec: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda: default enable CA0132 DSP support (bsc#1051510).
• ALSA: hda: Fix potential access overflow in beep helper (bsc#1051510).
• ALSA: hda/realtek - Add Headset Button supported for ThinkPad X1 (bsc#1111666).
• ALSA: hda/realtek - Add Headset Mic supported (bsc#1111666).
• ALSA: hda/realtek - Add more codec supported Headset Button (bsc#1111666).
• ALSA: hda/realtek - a fake key event is triggered by running shutup (bsc#1051510).
• ALSA: hda/realtek - Apply quirk for MSI GP63, too (bsc#1111666).
• ALSA: hda/realtek - Apply quirk for yet another MSI laptop (bsc#1111666).
• ALSA: hda/realtek - Enable headset mic of Acer X2660G with ALC662 (git-fixes).
• ALSA: hda/realtek: Enable mute LED on an HP system (bsc#1051510).
• ALSA: hda/realtek - Enable the headset of Acer N50-600 with ALC662…

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

The following security bugs were fixed:

• CVE-2020-8834: KVM on Power8 processors had a conflicting use of HSTATE_HOST_R1 to store r1 state in kvmppc_hv_entry plus in kvmppc_{save,restore}_tm, leading to a stack corruption. Because of this, an attacker with the ability to run code in kernel space of a guest VM can cause the host kernel to panic (bnc#1168276).
• CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).
• CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).
• CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).
• CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).
• CVE-2019-19770: Fixed a use-after-free in the debugfs_remove function (bsc#1159198).
• CVE-2020-11669: Fixed an issue where arch/powerpc/kernel/idle_book3s.S did not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR (bnc#1169390).
• CVE-2020-8647: There was a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bnc#1162929).
• CVE-2020-8649: There was a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bnc#1162931).
• CVE-2020-9383: An issue was discovered set_fdc in drivers/block/floppy.c leads to a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it (bnc#1165111).
• CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bnc#1159285).
• CVE-2018-20836: Fixed an issue where a race condition in smp_task_timedout() and smp_task_done() could lead to a use-after-free (bnc#1134395).

The following non-security bugs were fixed:

• ACPICA: Introduce ACPI_ACCESS_BYTE_WIDTH() macro (bsc#1051510).
• ACPI: watchdog: Fix gas->access_width usage (bsc#1051510).
• ahci: Add support for Amazon's Annapurna Labs SATA controller (bsc#1169013).
• ALSA: ali5451: remove redundant variable capture_flag (bsc#1051510).
• ALSA: core: Add snd_device_get_state() helper (bsc#1051510).
• ALSA: core: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: emu10k1: Fix endianness annotations (bsc#1051510).
• ALSA: hda/ca0132 - Add Recon3Di quirk to handle integrated sound on EVGA X99 Classified motherboard (bsc#1051510).
• ALSA: hda/ca0132 - Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda_codec: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda: default enable CA0132 DSP support (bsc#1051510).
• ALSA: hda: Fix potential access overflow in beep helper (bsc#1051510).
• ALSA: hda/realtek - Add Headset Button supported for ThinkPad X1 (bsc#1111666).
• ALSA: hda/realtek - Add Headset Mic supported (bsc#1111666).
• ALSA: hda/realtek - Add more codec supported Headset Button (bsc#1111666).
• ALSA: hda/realtek - a fake key event is triggered by running shutup (bsc#1051510).
• ALSA: hda/realtek - Apply quirk for MSI GP63, too (bsc#1111666).
• ALSA: hda/realtek - Apply quirk for yet another MSI laptop (bsc#1111666).
• ALSA: hda/realtek - Enable headset mic of Acer X2660G with ALC662 (git-fixes).
• ALSA: hda/realtek: Enable mute LED on an HP system (bsc#1051510).
• ALSA: hda/realtek - Enable the headset of Acer N50-600 with ALC662 (git-fixes).
• ALSA: hda/realtek - Enable the headset of ASUS B9450FA with ALC294 (bsc#1111666).
• ALSA: hda/realtek…

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

The following security bugs were fixed:

• CVE-2020-8834: KVM on Power8 processors had a conflicting use of HSTATE_HOST_R1 to store r1 state in kvmppc_hv_entry plus in kvmppc_{save,restore}_tm, leading to a stack corruption. Because of this, an attacker with the ability to run code in kernel space of a guest VM can cause the host kernel to panic (bnc#1168276).
• CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).
• CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).
• CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).
• CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).
• CVE-2019-19770: Fixed a use-after-free in the debugfs_remove function (bsc#1159198).
• CVE-2020-11669: Fixed an issue where arch/powerpc/kernel/idle_book3s.S did not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR (bnc#1169390).
• CVE-2020-8647: There was a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bnc#1162929).
• CVE-2020-8649: There was a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bnc#1162931).
• CVE-2020-9383: An issue was discovered set_fdc in drivers/block/floppy.c leads to a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it (bnc#1165111).
• CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bnc#1159285).

The following non-security bugs were fixed:

• ACPICA: Introduce ACPI_ACCESS_BYTE_WIDTH() macro (bsc#1051510).
• ACPI: watchdog: Fix gas->access_width usage (bsc#1051510).
• ALSA: ali5451: remove redundant variable capture_flag (bsc#1051510).
• ALSA: core: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: dummy: Fix PCM format loop in proc output (bsc#1111666).
• ALSA: emu10k1: Fix endianness annotations (bsc#1051510).
• ALSA: hda/ca0132 - Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda_codec: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda: Fix potential access overflow in beep helper (bsc#1051510).
• ALSA: hda/realtek: Fix pop noise on ALC225 (git-fixes).
• ALSA: hda/realtek - Set principled PC Beep configuration for ALC256 (bsc#1051510).
• ALSA: hda: remove redundant assignment to variable timeout (bsc#1051510).
• ALSA: hda: Use scnprintf() for string truncation (bsc#1051510).
• ALSA: hdsp: remove redundant assignment to variable err (bsc#1051510).
• ALSA: ice1724: Fix invalid access for enumerated ctl items (bsc#1051510).
• ALSA: info: remove redundant assignment to variable c (bsc#1051510).
• ALSA: korg1212: fix if-statement empty body warnings (bsc#1051510).
• ALSA: line6: Fix endless MIDI read loop (git-fixes).
• ALSA: pcm: oss: Avoid plugin buffer overflow (git-fixes).
• ALSA: pcm: oss: Fix regression by buffer overflow fix (bsc#1051510).
• ALSA: pcm: oss: Remove WARNING from snd_pcm_plug_alloc() checks (git-fixes).
• ALSA: seq: oss: Fix running status after receiving sysex (git-fixes).
• ALSA: seq: virmidi: Fix running status after receiving sysex (git-fixes).
• ALSA: usx2y: Adjust indentation in snd_usX2Y_hwdep_dsp_status (bsc#1051510).
• ALSA: via82xx: Fix endianness annotations (bsc#1051510).
• ASoC: dapm: Correct DAPM handling of active widgets…

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

The following security bugs were fixed:

• CVE-2020-8834: KVM on Power8 processors had a conflicting use of HSTATE_HOST_R1 to store r1 state in kvmppc_hv_entry plus in kvmppc_{save,restore}_tm, leading to a stack corruption. Because of this, an attacker with the ability to run code in kernel space of a guest VM can cause the host kernel to panic (bnc#1168276).
• CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).
• CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).
• CVE-2020-8647: Fixed a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bnc#1162929).
• CVE-2020-8649: Fixed a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bnc#1162931).
• CVE-2020-9383: Fixed an issue in set_fdc in drivers/block/floppy.c, which leads to a wait_til_ready out-of-bounds read (bnc#1165111).
• CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).
• CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).
• CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bnc#1159285).
• CVE-2019-19770: Fixed a use-after-free in the debugfs_remove function (bsc#1159198).

The following non-security bugs were fixed:

• ACPICA: Introduce ACPI_ACCESS_BYTE_WIDTH() macro (bsc#1051510).
• ACPI: watchdog: Fix gas->access_width usage (bsc#1051510).
• ahci: Add support for Amazon's Annapurna Labs SATA controller (bsc#1169013).
• ALSA: ali5451: remove redundant variable capture_flag (bsc#1051510).
• ALSA: core: Add snd_device_get_state() helper (bsc#1051510).
• ALSA: core: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: emu10k1: Fix endianness annotations (bsc#1051510).
• ALSA: hda/ca0132 - Add Recon3Di quirk to handle integrated sound on EVGA X99 Classified motherboard (bsc#1051510).
• ALSA: hda/ca0132 - Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda_codec: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda: default enable CA0132 DSP support (bsc#1051510).
• ALSA: hda/realtek - Add Headset Button supported for ThinkPad X1 (bsc#1111666).
• ALSA: hda/realtek - Add Headset Mic supported (bsc#1111666).
• ALSA: hda/realtek - Add more codec supported Headset Button (bsc#1111666).
• ALSA: hda/realtek - a fake key event is triggered by running shutup (bsc#1051510).
• ALSA: hda/realtek - Apply quirk for MSI GP63, too (bsc#1111666).
• ALSA: hda/realtek - Apply quirk for yet another MSI laptop (bsc#1111666).
• ALSA: hda/realtek - Enable headset mic of Acer X2660G with ALC662 (git-fixes).
• ALSA: hda/realtek: Enable mute LED on an HP system (bsc#1051510).
• ALSA: hda/realtek - Enable the headset of Acer N50-600 with ALC662 (git-fixes).
• ALSA: hda/realtek - Enable the headset of ASUS B9450FA with ALC294 (bsc#1111666).
• ALSA: hda/realtek - Fix a regression for mute led on Lenovo Carbon X1 (bsc#1111666).
• ALSA: hda/realtek: Fix pop noise on ALC225 (git-fixes).
• ALSA: hda/realtek - Fix silent output on Gigabyte X570 Aorus Master (bsc#1111666).
• ALSA: hda/realtek - Remove now-unnecessary XPS 13 headphone noise fixups (bsc#1051510).
• ALSA: hda/realtek - Set principled PC Beep configuration for ALC256 (bsc#1051510).
• ALSA: hda: remove redundant assignment to variable timeout (bsc#1051510).
• ALSA: hda: Use scnprintf()…

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

The following security bugs were fixed:

• CVE-2020-8834: KVM on Power8 processors had a conflicting use of HSTATE_HOST_R1 to store r1 state in kvmppc_hv_entry plus in kvmppc_{save,restore}_tm, leading to a stack corruption. Because of this, an attacker with the ability to run code in kernel space of a guest VM can cause the host kernel to panic (bnc#1168276).
• CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).
• CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).
• CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).
• CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).
• CVE-2019-19770: Fixed a use-after-free in the debugfs_remove function (bsc#1159198).
• CVE-2020-11669: Fixed an issue where arch/powerpc/kernel/idle_book3s.S did not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR (bnc#1169390).
• CVE-2020-8647: There was a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bnc#1162929).
• CVE-2020-8649: There was a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bnc#1162931).
• CVE-2020-9383: An issue was discovered set_fdc in drivers/block/floppy.c leads to a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it (bnc#1165111).
• CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bnc#1159285).

The following non-security bugs were fixed:

• ACPICA: Introduce ACPI_ACCESS_BYTE_WIDTH() macro (bsc#1051510).
• ACPI: watchdog: Fix gas->access_width usage (bsc#1051510).
• ALSA: ali5451: remove redundant variable capture_flag (bsc#1051510).
• ALSA: core: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: emu10k1: Fix endianness annotations (bsc#1051510).
• ALSA: hda/ca0132 - Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda_codec: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda: Fix potential access overflow in beep helper (bsc#1051510).
• ALSA: hda/realtek: Fix pop noise on ALC225 (git-fixes).
• ALSA: hda/realtek - Set principled PC Beep configuration for ALC256 (bsc#1051510).
• ALSA: hda: remove redundant assignment to variable timeout (bsc#1051510).
• ALSA: hda: Use scnprintf() for string truncation (bsc#1051510).
• ALSA: hdsp: remove redundant assignment to variable err (bsc#1051510).
• ALSA: ice1724: Fix invalid access for enumerated ctl items (bsc#1051510).
• ALSA: info: remove redundant assignment to variable c (bsc#1051510).
• ALSA: korg1212: fix if-statement empty body warnings (bsc#1051510).
• ALSA: line6: Fix endless MIDI read loop (git-fixes).
• ALSA: pcm: oss: Avoid plugin buffer overflow (git-fixes).
• ALSA: pcm: oss: Fix regression by buffer overflow fix (bsc#1051510).
• ALSA: pcm: oss: Remove WARNING from snd_pcm_plug_alloc() checks (git-fixes).
• ALSA: seq: oss: Fix running status after receiving sysex (git-fixes).
• ALSA: seq: virmidi: Fix running status after receiving sysex (git-fixes).
• ALSA: usx2y: Adjust indentation in snd_usX2Y_hwdep_dsp_status (bsc#1051510).
• ALSA: via82xx: Fix endianness annotations (bsc#1051510).
• ASoC: dapm: Correct DAPM handling of active widgets during shutdown (bsc#1051510).
• ASoC: Intel: atom: Take the drv->lock mutex…

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

The following security bugs were fixed:

• CVE-2020-8834: KVM on Power8 processors had a conflicting use of HSTATE_HOST_R1 to store r1 state in kvmppc_hv_entry plus in kvmppc_{save,restore}_tm, leading to a stack corruption. Because of this, an attacker with the ability to run code in kernel space of a guest VM can cause the host kernel to panic (bnc#1168276).
• CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).
• CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).
• CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).
• CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).
• CVE-2019-19770: Fixed a use-after-free in the debugfs_remove function (bsc#1159198).
• CVE-2020-11669: Fixed an issue where arch/powerpc/kernel/idle_book3s.S did not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR (bnc#1169390).
• CVE-2020-2732: Fixed an issue where under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest (bnc#1163971).
• CVE-2020-8647: There was a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bnc#1162929 1164078).
• CVE-2020-8649: There was a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bnc#1162929 1162931).
• CVE-2020-9383: An issue was discovered set_fdc in drivers/block/floppy.c leads to a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it (bnc#1165111).
• CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bnc#1159285).
• CVE-2018-20836: Fixed an issue where a race condition in smp_task_timedout() and smp_task_done() cloud lead to a use-after-free (bnc#1134395).

The following non-security bugs were fixed:

• ACPICA: Introduce ACPI_ACCESS_BYTE_WIDTH() macro (bsc#1051510).
• ACPI: watchdog: Fix gas->access_width usage (bsc#1051510).
• ahci: Add support for Amazon's Annapurna Labs SATA controller (bsc#1169013).
• ALSA: ali5451: remove redundant variable capture_flag (bsc#1051510).
• ALSA: core: Add snd_device_get_state() helper (bsc#1051510).
• ALSA: core: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: emu10k1: Fix endianness annotations (bsc#1051510).
• ALSA: hda/ca0132 - Add Recon3Di quirk to handle integrated sound on EVGA X99 Classified motherboard (bsc#1051510).
• ALSA: hda/ca0132 - Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda_codec: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda: default enable CA0132 DSP support (bsc#1051510).
• ALSA: hda: Fix potential access overflow in beep helper (bsc#1051510).
• ALSA: hda/realtek - Add Headset Button supported for ThinkPad X1 (bsc#1111666).
• ALSA: hda/realtek - Add Headset Mic supported (bsc#1111666).
• ALSA: hda/realtek - Add more codec supported Headset Button (bsc#1111666).
• ALSA: hda/realtek - a fake key event is triggered by running shutup (bsc#1051510).
• ALSA: hda/realtek - Apply quirk for MSI GP63, too (bsc#1111666).
• ALSA: hda/realtek - Apply quirk for yet another MSI laptop (bsc#1111666).
• ALSA: hda/realtek - Enable headset mic of Acer X2660G with ALC662 (git-fixes).
• ALSA: hda/realtek: Enable mute LED on an HP…

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

The following security bugs were fixed:

• CVE-2020-8834: KVM on Power8 processors had a conflicting use of HSTATE_HOST_R1 to store r1 state in kvmppc_hv_entry plus in kvmppc_{save,restore}_tm, leading to a stack corruption. Because of this, an attacker with the ability to run code in kernel space of a guest VM can cause the host kernel to panic (bnc#1168276).
• CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).
• CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).
• CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).
• CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).
• CVE-2019-19770: Fixed a use-after-free in the debugfs_remove function (bsc#1159198).
• CVE-2020-11669: Fixed an issue where arch/powerpc/kernel/idle_book3s.S did not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR (bnc#1169390).

The following non-security bugs were fixed:

• ACPICA: Introduce ACPI_ACCESS_BYTE_WIDTH() macro (bsc#1051510).
• ACPI: watchdog: Fix gas->access_width usage (bsc#1051510).
• ahci: Add support for Amazon's Annapurna Labs SATA controller (bsc#1169013).
• ALSA: ali5451: remove redundant variable capture_flag (bsc#1051510).
• ALSA: core: Add snd_device_get_state() helper (bsc#1051510).
• ALSA: core: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: emu10k1: Fix endianness annotations (bsc#1051510).
• ALSA: hda/ca0132 - Add Recon3Di quirk to handle integrated sound on EVGA X99 Classified motherboard (bsc#1051510).
• ALSA: hda/ca0132 - Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda_codec: Replace zero-length array with flexible-array member (bsc#1051510).
• ALSA: hda: default enable CA0132 DSP support (bsc#1051510).
• ALSA: hda: Fix potential access overflow in beep helper (bsc#1051510).
• ALSA: hda/realtek - a fake key event is triggered by running shutup (bsc#1051510).
• ALSA: hda/realtek - Enable headset mic of Acer X2660G with ALC662 (git-fixes).
• ALSA: hda/realtek: Enable mute LED on an HP system (bsc#1051510).
• ALSA: hda/realtek - Enable the headset of Acer N50-600 with ALC662 (git-fixes).
• ALSA: hda/realtek: Fix pop noise on ALC225 (git-fixes).
• ALSA: hda/realtek - Remove now-unnecessary XPS 13 headphone noise fixups (bsc#1051510).
• ALSA: hda/realtek - Set principled PC Beep configuration for ALC256 (bsc#1051510).
• ALSA: hda: remove redundant assignment to variable timeout (bsc#1051510).
• ALSA: hda: Use scnprintf() for string truncation (bsc#1051510).
• ALSA: hdsp: remove redundant assignment to variable err (bsc#1051510).
• ALSA: ice1724: Fix invalid access for enumerated ctl items (bsc#1051510).
• ALSA: info: remove redundant assignment to variable c (bsc#1051510).
• ALSA: korg1212: fix if-statement empty body warnings (bsc#1051510).
• ALSA: line6: Fix endless MIDI read loop (git-fixes).
• ALSA: pcm: Fix superfluous snprintf() usage (bsc#1051510).
• ALSA: pcm.h: add for_each_pcm_streams() (bsc#1051510).
• ALSA: pcm: oss: Avoid plugin buffer overflow (git-fixes).
• ALSA: pcm: oss: Fix regression by buffer overflow fix (bsc#1051510).
• ALSA: pcm: oss: Remove WARNING from snd_pcm_plug_alloc() checks (git-fixes).
• ALSA: pcm: oss: Unlock mutex temporarily for sleeping at read/write (bsc#1051510).
• ALSA: pcm: Use a macro for parameter masks to reduce the needed cast…

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

The following security bugs were fixed:

• CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).
• CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).
• CVE-2020-8647: Fixed a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bnc#1162929).
• CVE-2020-8649: Fixed a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bnc#1162931).
• CVE-2020-9383: Fixed an issue in set_fdc in drivers/block/floppy.c, which leads to a wait_til_ready out-of-bounds read (bnc#1165111).
• CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).
• CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).
• CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bnc#1159285).
• CVE-2020-11609: Fixed a NULL pointer dereference in the stv06xx subsystem caused by mishandling invalid descriptors (bnc#1168854).
• CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).
• CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).
• CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bnc#1170345).
• CVE-2020-11608: Fixed an issue in drivers/media/usb/gspca/ov519.c caused by a NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs when there are zero endpoints (bnc#1168829).
• CVE-2017-18255: The perf_cpu_time_max_percent_handler function in kernel/events/core.c allowed local users to cause a denial of service (integer overflow) or possibly have unspecified other impact via a large value, as demonstrated by an incorrect sample-rate calculation (bnc#1087813).
• CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928).
• CVE-2020-2732: A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest (bnc#1163971).
• CVE-2019-5108: Fixed a denial-of-service vulnerability caused by triggering AP to send IAPP location updates for stations before the required authentication process has completed (bnc#1159912).
• CVE-2020-8992: ext4_protect_reserved_inode in fs/ext4/block_validity.c allowed attackers to cause a denial of service (soft lockup) via a crafted journal size (bnc#1164069).
• CVE-2018-21008: Fixed a use-after-free which could be caused by the function rsi_mac80211_detach in the file drivers/net/wireless/rsi/rsi_91x_mac80211.c (bnc#1149591).
• CVE-2019-14896: A heap-based buffer overflow vulnerability was found in Marvell WiFi chip driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP (bnc#1157157).
• CVE-2019-14897: A stack-based buffer overflow was found in Marvell WiFi chip driver. An attacker is able to cause a denial of service (system crash) or, possibly execute arbitrary code, when a STA works in IBSS mode (allows connecting stations together without the use of an AP) and connects to…

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

The following security bugs were fixed:

• CVE-2020-11494: An issue was discovered in slc_bump in drivers/net/can/slcan.c, which allowed attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL (bnc#1168424).
• CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bnc#1167629).
• CVE-2020-8647: Fixed a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bnc#1162929).
• CVE-2020-8649: Fixed a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bnc#1162931).
• CVE-2020-9383: Fixed an issue in set_fdc in drivers/block/floppy.c, which leads to a wait_til_ready out-of-bounds read (bnc#1165111).
• CVE-2019-9458: In the video driver there was a use after free due to a race condition. This could lead to local escalation of privilege with no additional execution privileges needed (bnc#1168295).
• CVE-2019-3701: Fixed an issue in can_can_gw_rcv, which could cause a system crash (bnc#1120386).
• CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bnc#1159285).
• CVE-2020-11609: Fixed a NULL pointer dereference in the stv06xx subsystem caused by mishandling invalid descriptors (bnc#1168854).
• CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).
• CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).
• CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bnc#1170345).
• CVE-2020-11608: Fixed an issue in drivers/media/usb/gspca/ov519.c caused by a NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs when there are zero endpoints (bnc#1168829).
• CVE-2017-18255: The perf_cpu_time_max_percent_handler function in kernel/events/core.c allowed local users to cause a denial of service (integer overflow) or possibly have unspecified other impact via a large value, as demonstrated by an incorrect sample-rate calculation (bnc#1087813).
• CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928).
• CVE-2020-2732: A flaw was discovered in the way that the KVM hypervisor handled instruction emulation for an L2 guest when nested virtualisation is enabled. Under some circumstances, an L2 guest may trick the L0 guest into accessing sensitive L1 resources that should be inaccessible to the L2 guest (bnc#1163971).
• CVE-2019-5108: Fixed a denial-of-service vulnerability caused by triggering AP to send IAPP location updates for stations before the required authentication process has completed (bnc#1159912).
• CVE-2020-8992: ext4_protect_reserved_inode in fs/ext4/block_validity.c allowed attackers to cause a denial of service (soft lockup) via a crafted journal size (bnc#1164069).
• CVE-2018-21008: Fixed a use-after-free which could be caused by the function rsi_mac80211_detach in the file drivers/net/wireless/rsi/rsi_91x_mac80211.c (bnc#1149591).
• CVE-2019-14896: A heap-based buffer overflow vulnerability was found in Marvell WiFi chip driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP (bnc#1157157).
• CVE-2019-14897: A stack-based buffer overflow was found in Marvell WiFi chip driver. An attacker is able to cause a denial of service (system crash) or, possibly execute arbitrary code, when a STA works in IBSS mode (allows connecting stations together without the use of an AP) and connects to…

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-10942: In get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls (bsc#1167629).
• CVE-2020-8647: There was a use-after-free vulnerability in the vc_do_resize function in drivers/tty/vt/vt.c (bsc#1162929).
• CVE-2020-8649: There was a use-after-free vulnerability in the vgacon_invert_region function in drivers/video/console/vgacon.c (bsc#1162931).
• CVE-2020-9383: An issue was discovered set_fdc in drivers/block/floppy.c leads to a wait_til_ready out-of-bounds read because the FDC index is not checked for errors before assigning it (bsc#1165111).
• CVE-2019-19768: Fixed a use-after-free in the __blk_add_trace function in kernel/trace/blktrace.c (bsc#1159285).
• CVE-2020-11608: Fixed a NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs when there are zero endpoints (bsc#1168829).
• CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bsc#1162928).
• CVE-2019-14896: A heap-based buffer overflow vulnerability was found in Marvell WiFi chip driver. A remote attacker could cause a denial of service or possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP (bsc#1157157).
• CVE-2019-14897: A stack-based buffer overflow was found in the Marvell WiFi chip driver. An attacker is able to cause a denial of service or possibly execute arbitrary code, when a STA works in IBSS mode and connects to another STA (bsc#1157155).
• CVE-2019-18675: Fixed an Integer Overflow in cpia2_remap_buffer in drivers/media/usb/cpia2/cpia2_core.c because cpia2 has its own mmap implementation. This allowed local users to obtain read and write permissions on kernel physical pages, which can possibly result in a privilege escalation (bsc#1157804).
• CVE-2019-19965: Fixed a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition (bsc#1159911).
• CVE-2019-19066: A memory leak in the bfad_im_get_stats() function in drivers/scsi/bfa/bfad_attr.c allowed attackers to cause a denial of service by triggering bfa_port_get_stats() failures (bsc#1157303).
• CVE-2019-20096: Fixed a memory leak in __feat_register_sp() in net/dccp/feat.c, which may cause denial of service (bsc#1159908).
• CVE-2019-19966: Fixed a use-after-free in cpia2_exit() in drivers/media/usb/cpia2/cpia2_v4l.c that will cause denial of service (bsc#1159841).
• CVE-2019-19532: Fixed multiple out-of-bounds write bugs that can be caused by a malicious USB device (bsc#1158824).
• CVE-2019-19523: Fixed a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/adutux.c driver (bsc#115882).
• CVE-2019-19537: Fixed a race condition that can be caused by a malicious USB device in the USB character device driver layer (bsc#1158904).
• CVE-2019-19527, CVE-2019-19530, CVE-2019-19524: Fixed multiple use-after-free bug that could be caused by a malicious USB device (bsc#1158381, bsc#1158834, bsc#1158900).
• CVE-2019-15213: Fixed a use-after-free caused by a malicious USB device in the drivers/media/usb/dvb-usb/dvb-usb-init.c driver (bsc#1146544).
• CVE-2019-19531: Fixed a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/yurex.c driver (bsc#1158445).
• CVE-2019-18660: The Linux kernel on powerpc allowed Information Exposure because the Spectre-RSB mitigation is not in place for all applicable CPUs (bsc#1157038).
• CVE-2019-19227: Fixed a potential NULL pointer dereference in the AppleTalk subsystem (bsc#1157678).
• CVE-2019-19074: Fixed a memory leak in the ath9k_wmi_cmd(), which allowed attackers to cause a denial of service (bsc#1157143). -…

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

The following security bugs were fixed:

• CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1154824).
• CVE-2020-9383: Fixed an out-of-bounds read due to improper error condition check of FDC index (bsc#1165111).
• CVE-2020-8992: Fixed an issue which could have allowed attackers to cause a soft lockup via a crafted journal size (bsc#1164069).
• CVE-2020-8834: Fixed a stack corruption which could have lead to kernel panic (bsc#1168276).
• CVE-2020-8649: Fixed a use-after-free in the vgacon_invert_region function in drivers/video/console/vgacon.c (bsc#1162931).
• CVE-2020-8648: Fixed a use-after-free in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bsc#1162928).
• CVE-2020-8647: Fixed a use-after-free in the vc_do_resize function in drivers/tty/vt/vt.c (bsc#1162929).
• CVE-2020-8428: Fixed a use-after-free which could have allowed local users to cause a denial of service (bsc#1162109).
• CVE-2020-7053: Fixed a use-after-free in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c (bsc#1160966).
• CVE-2020-2732: Fixed an issue affecting Intel CPUs where an L2 guest may trick the L0 hypervisor into accessing sensitive L1 resources (bsc#1163971).
• CVE-2020-13143: Fixed an out-of-bounds read in gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c (bsc#1171982).
• CVE-2020-12769: Fixed an issue which could have allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bsc#1171983).
• CVE-2020-12657: An a use-after-free in block/bfq-iosched.c (bsc#1171205).
• CVE-2020-12656: Fixed an improper handling of certain domain_release calls leadingch could have led to a memory leak (bsc#1171219).
• CVE-2020-12655: Fixed an issue which could have allowed attackers to trigger a sync of excessive duration via an XFS v5 image with crafted metadata (bsc#1171217).
• CVE-2020-12654: Fixed an issue in he wifi driver which could have allowed a remote AP to trigger a heap-based buffer overflow (bsc#1171202).
• CVE-2020-12653: Fixed an issue in the wifi driver which could have allowed local users to gain privileges or cause a denial of service (bsc#1171195).
• CVE-2020-12652: Fixed an issue which could have allowed local users to hold an incorrect lock during the ioctl operation and trigger a race condition (bsc#1171218).
• CVE-2020-12464: Fixed a use-after-free due to a transfer without a reference (bsc#1170901).
• CVE-2020-12114: Fixed a pivot_root race condition which could have allowed local users to cause a denial of service (panic) by corrupting a mountpoint reference counter (bsc#1171098).
• CVE-2020-11669: Fixed an issue where arch/powerpc/kernel/idle_book3s.S did not have save/restore functionality for PNV_POWERSAVE_AMR, PNV_POWERSAVE_UAMOR, and PNV_POWERSAVE_AMOR (bnc#1169390).
• CVE-2020-11609: Fixed a null pointer dereference due to improper handling of descriptors (bsc#1168854).
• CVE-2020-11608: Fixed a null pointer dereferences via a crafted USB (bsc#1168829).
• CVE-2020-11494: Fixed an issue which could have allowed attackers to read uninitialized can_frame data (bsc#1168424).
• CVE-2020-10942: Fixed a kernel stack corruption via crafted system calls (bsc#1167629).
• CVE-2020-10757: Fixed an issue where remaping hugepage DAX to anon mmap could have caused user PTE access (bsc#1172317).
• CVE-2020-10751: Fixed an improper implementation in SELinux LSM hook where it was assumed that an skb would only contain a single netlink message (bsc#1171189).
• CVE-2020-10732: Fixed kernel data leak in userspace coredumps due to uninitialized data (bsc#1171220).
• CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).
• CVE-2020-10711: Fixed a null pointer…

Al Viro discovered that the Linux kernel for s390x systems did not properly perform page table upgrades for kernel sections that use secondary address mode. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2020-11884)

It was discovered that the Intel Wi-Fi driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-16234)

Tristan Madani discovered that the block I/O tracing implementation in the Linux kernel contained a race condition. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2019-19768)

It was discovered that the vhost net driver in the Linux kernel contained a stack buffer overflow. A local attacker with the ability to perform ioctl() calls on /dev/vhost-net could use this to cause a denial of service (system crash). (CVE-2020-10942)

It was discovered that the virtual terminal implementation in the Linux kernel contained a race condition. A local attacker could possibly use this to cause a denial of service (system crash) or expose sensitive information. (CVE-2020-8648)

Shijie Luo discovered that the ext4 file system implementation in the Linux kernel did not properly check for a too-large journal size. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (soft lockup). (CVE-2020-8992)

Jordy Zomer discovered that the floppy driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2020-9383)

It was discovered that the Intel Wi-Fi driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-16234)

It was discovered that the Intel WiMAX 2400 driver in the Linux kernel did not properly deallocate memory in certain situations. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-19051)

Tristan Madani discovered that the block I/O tracing implementation in the Linux kernel contained a race condition. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2019-19768)

It was discovered that the vhost net driver in the Linux kernel contained a stack buffer overflow. A local attacker with the ability to perform ioctl() calls on /dev/vhost-net could use this to cause a denial of service (system crash). (CVE-2020-10942)

It was discovered that the virtual terminal implementation in the Linux kernel contained a race condition. A local attacker could possibly use this to cause a denial of service (system crash) or expose sensitive information. (CVE-2020-8648)

Shijie Luo discovered that the ext4 file system implementation in the Linux kernel did not properly check for a too-large journal size. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service (soft lockup). (CVE-2020-8992)

Jordy Zomer discovered that the floppy driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2020-9383)

Al Viro discovered that the Linux kernel for s390x systems did not properly perform page table upgrades for kernel sections that use secondary address mode. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2020-11884)

It was discovered that the Intel Wi-Fi driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-16234)

Tristan Madani discovered that the block I/O tracing implementation in the Linux kernel contained a race condition. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2019-19768)

It was discovered that the vhost net driver in the Linux kernel contained a stack buffer overflow. A local attacker with the ability to perform ioctl() calls on /dev/vhost-net could use this to cause a denial of service (system crash). (CVE-2020-10942)

It was discovered that the OV51x USB Camera device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2020-11608)

It was discovered that the STV06XX USB Camera device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2020-11609)

It was discovered that the Xirlink C-It USB Camera device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2020-11668)

It was discovered that the virtual terminal implementation in the Linux kernel contained a race condition. A local attacker could possibly use this to cause a denial of service (system crash) or expose sensitive information. (CVE-2020-8648)

Jordy Zomer discovered that the floppy driver in the Linux kernel did not properly check for errors in some situations. A local attacker could possibly use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2020-9383)

It was discovered that the ADIS16400 IIO IMU Driver for the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-19060)

It was discovered that the vhost net driver in the Linux kernel contained a stack buffer overflow. A local attacker with the ability to perform ioctl() calls on /dev/vhost-net could use this to cause a denial of service (system crash). (CVE-2020-10942)

It was discovered that the Serial CAN interface driver in the Linux kernel did not properly initialize data. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2020-11494)

It was discovered that the linux kernel did not properly validate certain mount options to the tmpfs virtual memory file system. A local attacker with the ability to specify mount options could use this to cause a denial of service (system crash). (CVE-2020-11565)

It was discovered that the OV51x USB Camera device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2020-11608)

It was discovered that the STV06XX USB Camera device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2020-11609)

It was discovered that the Xirlink C-It USB Camera device driver in the Linux kernel did not properly validate device metadata. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2020-11668)