CVE-2020-12888

The VFIO PCI driver in the Linux kernel through 5.6.13 mishandles attempts to access disabled memory space.

The VFIO PCI driver in the Linux kernel through 5.6.13 mishandles attempts to access disabled memory space.

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

The following security bugs were fixed:

• CVE-2019-19462: relay_open in kernel/relay.c allowed local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result (bnc#1158265).
• CVE-2019-20810: go7007_snd_init in drivers/media/usb/go7007/snd-go7007.c did not call snd_card_free for a failure path, which causes a memory leak, aka CID-9453264ef586 (bnc#1172458).
• CVE-2019-20812: The prb_calc_retire_blk_tmo() function in net/packet/af_packet.c can result in a denial of service (CPU consumption and soft lockup) in a certain failure case involving TPACKET_V3, aka CID-b43d1f9f7067 (bnc#1172453).
• CVE-2020-10711: A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. While processing the CIPSO restricted bitmap tag in the 'cipso_v4_parsetag_rbm' routine, it sets the security attribute to indicate that the category bitmap is present, even if it has not been allocated. This issue leads to a NULL pointer dereference issue while importing the same category bitmap into SELinux. This flaw allowed a remote network user to crash the system kernel, resulting in a denial of service (bnc#1171191).
• CVE-2020-10732: A flaw was found in the implementation of Userspace core dumps. This flaw allowed an attacker with a local account to crash a trivial program and exfiltrate private kernel data (bnc#1171220).
• CVE-2020-10751: SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing (bnc#1171189).
• CVE-2020-10766: Fixed rogue cross-process SSBD shutdown. Linux scheduler logical bug allowed an attacker to turn off the SSBD protection. (bnc#1172781).
• CVE-2020-10767: Fixed that Indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available. (bnc#1172782).
• CVE-2020-10768: Fixed that indirect branch speculation can be enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command (bnc#1172783).
• CVE-2020-10773: Fixed a kernel stack information leak on s390/s390x. (bnc#1172999).
• CVE-2020-12656: Fixed a memory leak in gss_mech_free in the rpcsec_gss_krb5 implementation due to lack of certain domain_release calls (bnc#1171219).
• CVE-2020-12769: An issue was discovered in drivers/spi/spi-dw.c allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one, aka CID-19b61392c5a8 (bnc#1171983).
• CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).
• CVE-2020-13143: gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c relied on kstrdup without considering the possibility of an internal '\0' value, which allowed attackers to trigger an out-of-bounds read, aka CID-15753588bcd4 (bnc#1171982).
• CVE-2020-13974: tty/vt/keyboard.c had an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. (bnc#1172775).
• CVE-2020-14416: A race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).

The following non-security bugs were fixed:

• ACPICA: Fixes for acpiExec namespace init file (git-fixes).
• ACPI: CPPC: Fix reference count leak in acpi_cppc_processor_probe() (git-fixes).
• ACPI: GED: add support for _Exx / _Lxx handler methods (git-fixes).
• ACPI: GED: use correct trigger type field in _Exx / _Lxx handling (git-fixes).
• ACPI: PM:…

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

The following security bugs were fixed:

• CVE-2019-16746: An issue was discovered in net/wireless/nl80211.c where it did not check the length of variable elements in a beacon head, leading to a buffer overflow (bnc#1152107 1173659).
• CVE-2019-20810: go7007_snd_init in drivers/media/usb/go7007/snd-go7007.c did not call snd_card_free for a failure path, which causes a memory leak, aka CID-9453264ef586 (bnc#1172458).
• CVE-2019-20908: An issue was discovered in drivers/firmware/efi/efi.c where Incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032 (bnc#1173567).
• CVE-2020-0305: In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1174462).
• CVE-2020-10135: Legacy pairing and secure-connections pairing authentication in Bluetooth� BR/EDR Core Specification v5.2 and earlier may have allowed an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key (bnc#1171988).
• CVE-2020-10766: Fixed rogue cross-process SSBD shutdown. Linux scheduler logical bug allowed an attacker to turn off the SSBD protection. (bnc#1172781).
• CVE-2020-10767: Fixed indirect Branch Prediction Barrier is force-disabled when STIBP is unavailable or enhanced IBRS is available. (bnc#1172782).
• CVE-2020-10768: Fixed indirect branch speculation can be enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command. (bnc#1172783).
• CVE-2020-10769: A buffer over-read flaw was found in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. When a payload longer than 4 bytes, and is not following 4-byte alignment boundary guidelines, it causes a buffer over-read threat, leading to a system crash. This flaw allowed a local attacker with user privileges to cause a denial of service (bnc#1173265).
• CVE-2020-10773: Fixed a kernel stack information leak on s390/s390x. (bnc#1172999).
• CVE-2020-10781: A zram sysfs resource consumption was fixed. (bnc#1173074).
• CVE-2020-12771: btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails (bnc#1171732).
• CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).
• CVE-2020-13974: drivers/tty/vt/keyboard.c had an integer overflow if k_ascii was called several times in a row, aka CID-b86dab054059. (bnc#1172775).
• CVE-2020-14331: Fixed a buffer over write in vgacon_scroll (bnc#1174205).
• CVE-2020-14331: Fixed an out of bounds write to the vgacon scrollback buffer (bsc#1174205).
• CVE-2020-14416: A race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).
• CVE-2020-15393: usbtest_disconnect in drivers/usb/misc/usbtest.c has a memory leak, aka CID-28ebeb8db770 (bnc#1173514).
• CVE-2020-15780: An issue was discovered in drivers/acpi/acpi_configfs.c where injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30 (bnc#1173573).
• CVE-2020-16166: The Linux kernel allowed remote attackers to make observations that help to obtain sensitive information about the internal state of the network RNG, aka CID-f227e3ec3b5c. This is related to drivers/char/random.c and kernel/time/timer.c (bnc#1174757).

The following non-security bugs…

This update syncs the RT kernel from the SUSE Linux Enterprise 15-SP2 codestream.

This update was imported from the SUSE:SLE-15-SP2:Update update project.

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

The following security bugs were fixed:

• CVE-2020-15780: A lockdown bypass for loading unsigned modules using ACPI table injection was fixed. (bsc#1173573)
• CVE-2020-15393: Fixed a memory leak in usbtest_disconnect (bnc#1173514).
• CVE-2020-12771: An issue was discovered in btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails (bnc#1171732).
• CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).
• CVE-2020-10773: Fixed a memory leak on s390/s390x, in the cmm_timeout_hander in file arch/s390/mm/cmm.c (bnc#1172999).
• CVE-2020-14416: Fixed a race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).
• CVE-2020-10768: Fixed an issue with the prctl() function, where indirect branch speculation could be enabled even though it was diabled before (bnc#1172783).
• CVE-2020-10766: Fixed an issue which allowed an attacker with a local account to disable SSBD protection (bnc#1172781).
• CVE-2020-10767: Fixed an issue where Indirect Branch Prediction Barrier was disabled in certain circumstances, leaving the system open to a spectre v2 style attack (bnc#1172782).
• CVE-2020-13974: Fixed a integer overflow in drivers/tty/vt/keyboard.c, if k_ascii is called several times in a row (bnc#1172775).
• CVE-2019-20810: Fixed a memory leak in go7007_snd_init in drivers/media/usb/go7007/snd-go7007.c because it did not call snd_card_free for a failure path (bnc#1172458).
• CVE-2019-20812: An issue was discovered in the prb_calc_retire_blk_tmo() function in net/packet/af_packet.c could result in a denial of service (CPU consumption and soft lockup) in a certain failure case involving TPACKET_V3 (bnc#1172453).
• CVE-2019-19462: relay_open in kernel/relay.c in the Linux kernel allowed local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result (bnc#1158265).
• CVE-2020-10732: A flaw was found in the implementation of Userspace core dumps. This flaw allowed an attacker with a local account to crash a trivial program and exfiltrate private kernel data (bnc#1171220).
• CVE-2020-12656: Fixed a memory leak in gss_mech_free in the rpcsec_gss_krb5 implementation, caused by a lack of certain domain_release calls (bnc#1171219).
• CVE-2020-10751: A flaw was found in the SELinux LSM hook implementation, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing (bnc#1171189).
• CVE-2020-10711: A NULL pointer dereference flaw was found in the SELinux subsystem in versions This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. This flaw allowed a remote network user to crash the system kernel, resulting in a denial of service (bnc#1171191).
• CVE-2020-12769: An issue was discovered in drivers/spi/spi-dw.c allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bnc#1171983).
• CVE-2020-13143: gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c relies on kstrdup without considering the possibility of an internal '\0' value, which allowed attackers to trigger an out-of-bounds read (bnc#1171982).

The following non-security bugs were fixed:

• ACPICA: Fixes for acpiExec namespace init file (git-fixes).
• ACPI: configfs: Disallow loading ACPI tables when locked down (git-fixes).
• ACPI: CPPC: Fix reference count leak in acpi_cppc_processor_probe() (git-fixes).
• ACPI: GED: add support for _Exx / _Lxx handler methods…

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

The following security bugs were fixed:

• CVE-2020-15393: Fixed a memory leak in usbtest_disconnect (bnc#1173514).
• CVE-2020-12771: An issue was discovered in btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails (bnc#1171732).
• CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).
• CVE-2020-10773: Fixed a memory leak on s390/s390x, in the cmm_timeout_hander in file arch/s390/mm/cmm.c (bnc#1172999).
• CVE-2020-14416: Fixed a race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).
• CVE-2020-10768: Fixed an issue with the prctl() function, where indirect branch speculation could be enabled even though it was diabled before (bnc#1172783).
• CVE-2020-10766: Fixed an issue which allowed an attacker with a local account to disable SSBD protection (bnc#1172781).
• CVE-2020-10767: Fixed an issue where Indirect Branch Prediction Barrier was disabled in certain circumstances, leaving the system open to a spectre v2 style attack (bnc#1172782).
• CVE-2020-13974: Fixed a integer overflow in drivers/tty/vt/keyboard.c, if k_ascii is called several times in a row (bnc#1172775).
• CVE-2019-20810: Fixed a memory leak in go7007_snd_init in drivers/media/usb/go7007/snd-go7007.c because it did not call snd_card_free for a failure path (bnc#1172458).
• CVE-2020-10769: A buffer over-read flaw was found in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. This flaw allowed a local attacker with user privileges to cause a denial of service (bnc#1173265).
• CVE-2020-10781: Fixed a denial of service issue in the ZRAM implementation (bsc#1173074).
• CVE-2020-0305: In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bsc#1174462).
• CVE-2019-20908: An issue was discovered in drivers/firmware/efi/efi.c: incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032 (bsc#1173567).
• CVE-2020-15780: An issue was discovered in drivers/acpi/acpi_configfs.c: injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30 (bsc#1173573).

The following non-security bugs were fixed:

• ACPI: GED: add support for _Exx / _Lxx handler methods (bsc#1111666).
• ACPI: GED: use correct trigger type field in _Exx / _Lxx handling (bsc#1111666).
• ACPI: NFIT: Fix unlock on error in scrub_show() (bsc#1171753).
• ACPI: PM: Avoid using power resources if there are none for D0 (bsc#1051510).
• ACPI: sysfs: Fix pm_profile_attr type (bsc#1111666).
• ACPI: video: Use native backlight on Acer Aspire 5783z (bsc#1111666).
• ACPI: video: Use native backlight on Acer TravelMate 5735Z (bsc#1111666).
• ALSA: es1688: Add the missed snd_card_free() (bsc#1051510).
• ALSA: hda: Add ElkhartLake HDMI codec vid (bsc#1111666).
• ALSA: hda: add sienna_cichlid audio asic id for sienna_cichlid up (bsc#1111666).
• ALSA: hda/hdmi - enable runtime pm for newer AMD display audio (bsc#1111666).
• ALSA: hda - let hs_mic be picked ahead of hp_mic (bsc#1111666).
• ALSA: hda/realtek - add a pintbl quirk for several Lenovo machines (bsc#1111666).
• ALSA: hda/realtek - Add LED class support for micmute LED (bsc#1111666).
• ALSA: hda/realtek - Enable micmute LED on and HP system (bsc#1111666).
• ALSA: hda/realtek - Enable Speaker for ASUS UX533 and UX534 (bsc#1111666).
• ALSA: hda/realtek - Fix unused variable warning w/o CONFIG_LEDS_TRIGGER_AUDIO (bsc#1111666).
• ALSA: hda/realtek -…

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

The following security bugs were fixed:

• CVE-2019-19462: relay_open in kernel/relay.c in the Linux kernel allowed local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result (bnc#1158265).
• CVE-2019-20810: Fixed a memory leak in go7007_snd_init in drivers/media/usb/go7007/snd-go7007.c because it did not call snd_card_free for a failure path (bnc#1172458).
• CVE-2019-20812: An issue was discovered in the prb_calc_retire_blk_tmo() function in net/packet/af_packet.c could result in a denial of service (CPU consumption and soft lockup) in a certain failure case involving TPACKET_V3 (bnc#1172453).
• CVE-2020-0305: In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1174462).
• CVE-2020-10135: Legacy pairing and secure-connections pairing authentication in Bluetooth� BR/EDR Core Specification v5.2 and earlier may have allowed an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key (bnc#1171988).
• CVE-2020-10711: A NULL pointer dereference flaw was found in the SELinux subsystem in versions This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. This flaw allowed a remote network user to crash the system kernel, resulting in a denial of service (bnc#1171191).
• CVE-2020-10732: A flaw was found in the implementation of Userspace core dumps. This flaw allowed an attacker with a local account to crash a trivial program and exfiltrate private kernel data (bnc#1171220).
• CVE-2020-10751: A flaw was found in the SELinux LSM hook implementation, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing (bnc#1171189).
• CVE-2020-10766: Fixed an issue which allowed an attacker with a local account to disable SSBD protection (bnc#1172781).
• CVE-2020-10767: Fixed an issue where Indirect Branch Prediction Barrier was disabled in certain circumstances, leaving the system open to a spectre v2 style attack (bnc#1172782).
• CVE-2020-10768: Fixed an issue with the prctl() function, where indirect branch speculation could be enabled even though it was diabled before (bnc#1172783).
• CVE-2020-10773: Fixed a memory leak on s390/s390x, in the cmm_timeout_hander in file arch/s390/mm/cmm.c (bnc#1172999).
• CVE-2020-10781: A zram sysfs resource consumption was fixed (bnc#1173074).
• CVE-2020-12656: Fixed a memory leak in gss_mech_free in the rpcsec_gss_krb5 implementation, caused by a lack of certain domain_release calls (bnc#1171219).
• CVE-2020-12769: An issue was discovered in drivers/spi/spi-dw.c allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bnc#1171983).
• CVE-2020-12771: An issue was discovered in btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails (bnc#1171732).
• CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).
• CVE-2020-13143: gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c relies on kstrdup without considering the possibility of an internal '\0' value, which allowed attackers to trigger an out-of-bounds read (bnc#1171982).
• CVE-2020-13974: Fixed a integer overflow in…

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

The following security bugs were fixed:

• CVE-2020-0305: In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1174462).
• CVE-2019-20908: An issue was discovered in drivers/firmware/efi/efi.c where incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032 (bnc#1173567).
• CVE-2020-15780: An issue was discovered in drivers/acpi/acpi_configfs.c where injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30 (bnc#1173573).
• CVE-2020-15393: usbtest_disconnect in drivers/usb/misc/usbtest.c had a memory leak, aka CID-28ebeb8db770 (bnc#1173514).
• CVE-2020-12771: btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails (bnc#1171732).
• CVE-2019-16746: An issue was discovered in net/wireless/nl80211.c which did not check the length of variable elements in a beacon head, leading to a buffer overflow (bnc#1152107 1173659).
• CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).
• CVE-2020-10769: A buffer over-read flaw was found in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. When a payload longer than 4 bytes, and is not following 4-byte alignment boundary guidelines, it causes a buffer over-read threat, leading to a system crash. This flaw allowed a local attacker with user privileges to cause a denial of service (bnc#1173265).
• CVE-2020-10773: A kernel stack information leak on s390/s390x was fixed (bnc#1172999).
• CVE-2020-14416: A race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).
• CVE-2020-10768: Indirect branch speculation could have been enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command. (bnc#1172783).
• CVE-2020-10766: Fixed Rogue cross-process SSBD shutdown, where a Linux scheduler logical bug allows an attacker to turn off the SSBD protection. (bnc#1172781).
• CVE-2020-10767: Indirect Branch Prediction Barrier was force-disabled when STIBP is unavailable or enhanced IBRS is available. (bnc#1172782).
• CVE-2020-13974: drivers/tty/vt/keyboard.c had an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059 (bnc#1172775).

The following non-security bugs were fixed:

• Merge ibmvnic reset fixes (bsc#1158755 ltc#182094).
• block, bfq: add requeue-request hook (bsc#1104967 bsc#1171673).
• block, bfq: postpone rq preparation to insert or merge (bsc#1104967 bsc#1171673).
• ibmvnic: Do not process device remove during device reset (bsc#1065729).
• ibmvnic: Flush existing work items before device removal (bsc#1065729).
• ibmvnic: Harden device login requests (bsc#1170011 ltc#183538).
• ibmvnic: Skip fatal error reset after passive init (bsc#1171078 ltc#184239).
• ibmvnic: continue to init in CRQ reset returns H_CLOSED (bsc#1173280 ltc#185369).
• intel_idle: Graceful probe failure when MWAIT is disabled (bsc#1174115).
• livepatch: Apply vmlinux-specific KLP relocations early (bsc#1071995).
• livepatch: Disallow vmlinux.ko (bsc#1071995).
• livepatch: Make klp_apply_object_relocs static (bsc#1071995).
• livepatch: Prevent module-specific KLP rela sections from referencing vmlinux symbols (bsc#1071995).
• livepatch: Remove .klp.arch (bsc#1071995).
• vfio/pci: Fix SR-IOV VF handling with MMIO blocking (bsc#1051510).
• vfio/pci: Fix SR-IOV VF handling with MMIO blocking (bsc#1174000).
• vfio/pci: Mask buggy SR-IOV VF…

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

The following security bugs were fixed:

• CVE-2020-15780: A lockdown bypass for loading unsigned modules using ACPI table injection was fixed. (bsc#1173573)
• CVE-2020-15393: Fixed a memory leak in usbtest_disconnect (bnc#1173514).
• CVE-2020-12771: An issue was discovered in btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails (bnc#1171732).
• CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).
• CVE-2020-10773: Fixed a memory leak on s390/s390x, in the cmm_timeout_hander in file arch/s390/mm/cmm.c (bnc#1172999).
• CVE-2020-14416: Fixed a race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).
• CVE-2020-10768: Fixed an issue with the prctl() function, where indirect branch speculation could be enabled even though it was diabled before (bnc#1172783).
• CVE-2020-10766: Fixed an issue which allowed an attacker with a local account to disable SSBD protection (bnc#1172781).
• CVE-2020-10767: Fixed an issue where Indirect Branch Prediction Barrier was disabled in certain circumstances, leaving the system open to a spectre v2 style attack (bnc#1172782).
• CVE-2020-13974: Fixed a integer overflow in drivers/tty/vt/keyboard.c, if k_ascii is called several times in a row (bnc#1172775).
• CVE-2020-0305: Fixed a possible use-after-free due to a race condition incdev_get of char_dev.c. This could lead to local escalation of privilege. User interaction is not needed for exploitation (bnc#1174462).
• CVE-2020-10769: A buffer over-read flaw was found in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. This flaw allowed a local attacker with user privileges to cause a denial of service (bnc#1173265).
• CVE-2020-10781: Fixed a denial of service issue in the ZRAM implementation (bnc#1173074).
• CVE-2019-20908: Fixed incorrect access permissions for the efivar_ssdt ACPI variable, which could be used by attackers to bypass lockdown or secure boot restrictions (bnc#1173567).
• CVE-2019-20810: Fixed a memory leak in go7007_snd_init in drivers/media/usb/go7007/snd-go7007.c because it did not call snd_card_free for a failure path (bnc#1172458).
• CVE-2019-16746: Fixed a buffer overflow in net/wireless/nl80211.c, related to invalid length checks for variable elements in a beacon head (bnc#1152107).

The following non-security bugs were fixed:

• ACPI: GED: add support for _Exx / _Lxx handler methods (bsc#1111666).
• ACPI: GED: use correct trigger type field in _Exx / _Lxx handling (bsc#1111666).
• ACPI: NFIT: Fix unlock on error in scrub_show() (bsc#1171753).
• ACPI: PM: Avoid using power resources if there are none for D0 (bsc#1051510).
• ACPI: sysfs: Fix pm_profile_attr type (bsc#1111666).
• ACPI: video: Use native backlight on Acer Aspire 5783z (bsc#1111666).
• ACPI: video: Use native backlight on Acer TravelMate 5735Z (bsc#1111666).
• ALSA: es1688: Add the missed snd_card_free() (bsc#1051510).
• ALSA: hda: Add ElkhartLake HDMI codec vid (bsc#1111666).
• ALSA: hda: add sienna_cichlid audio asic id for sienna_cichlid up (bsc#1111666).
• ALSA: hda/hdmi - enable runtime pm for newer AMD display audio (bsc#1111666).
• ALSA: hda - let hs_mic be picked ahead of hp_mic (bsc#1111666).
• ALSA: hda/realtek - add a pintbl quirk for several Lenovo machines (bsc#1111666).
• ALSA: hda/realtek - Add LED class support for micmute LED (bsc#1111666).
• ALSA: hda/realtek - Enable micmute LED on and HP system (bsc#1111666).
• ALSA: hda/realtek - Enable Speaker for ASUS UX533 and UX534 (bsc#1111666).
• ALSA: hda/realtek - Fix unused variable warning w/o CONFIG_LEDS_TRIGGER_AUDIO (bsc#1111666).
• ALSA: hda/realtek - Introduce polarity for micmute LED GPIO (bsc#1111666).
• ALSA: lx6464es - add…

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

The following security bugs were fixed:

• CVE-2020-15780: A lockdown bypass for loading unsigned modules using ACPI table injection was fixed. (bsc#1173573)
• CVE-2020-15393: Fixed a memory leak in usbtest_disconnect (bnc#1173514).
• CVE-2020-12771: An issue was discovered in btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails (bnc#1171732).
• CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).
• CVE-2020-10773: Fixed a memory leak on s390/s390x, in the cmm_timeout_hander in file arch/s390/mm/cmm.c (bnc#1172999).
• CVE-2020-14416: Fixed a race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).
• CVE-2020-0305: Fixed a possible use-after-free due to a race condition incdev_get of char_dev.c. This could lead to local escalation of privilege. User interaction is not needed for exploitation (bnc#1174462).
• CVE-2020-10769: A buffer over-read flaw was found in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. This flaw allowed a local attacker with user privileges to cause a denial of service (bnc#1173265).
• CVE-2020-10781: Fixed a denial of service issue in the ZRAM implementation (bnc#1173074).
• CVE-2019-20908: Fixed incorrect access permissions for the efivar_ssdt ACPI variable, which could be used by attackers to bypass lockdown or secure boot restrictions (bnc#1173567).
• CVE-2019-16746: Fixed a buffer overflow in net/wireless/nl80211.c, related to invalid length checks for variable elements in a beacon head (bnc#1152107).
• CVE-2020-10135: Legacy pairing and secure-connections pairing authentication in Bluetooth may have allowed an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key (bnc#1171988).
• CVE-2020-14331: Fixed a buffer over write in vgacon_scrollback_update() (bnc#1174205).

The following non-security bugs were fixed:

• ACPI: GED: add support for _Exx / _Lxx handler methods (bsc#1111666).
• ACPI: GED: use correct trigger type field in _Exx / _Lxx handling (bsc#1111666).
• ACPI: NFIT: Fix unlock on error in scrub_show() (bsc#1171753).
• ACPI: sysfs: Fix pm_profile_attr type (bsc#1111666).
• ACPI: video: Use native backlight on Acer Aspire 5783z (bsc#1111666).
• ACPI: video: Use native backlight on Acer TravelMate 5735Z (bsc#1111666).
• ALSA: hda - let hs_mic be picked ahead of hp_mic (bsc#1111666).
• ALSA: hda/realtek - Enable Speaker for ASUS UX533 and UX534 (bsc#1111666).
• ALSA: lx6464es - add support for LX6464ESe pci express variant (bsc#1111666).
• ALSA: opl3: fix infoleak in opl3 (bsc#1111666).
• ALSA: usb-audio: add quirk for MacroSilicon MS2109 (bsc#1111666).
• ALSA: usb-audio: Fix packet size calculation (bsc#1111666).
• ALSA: usb-audio: Improve frames size computation (bsc#1111666).
• amdgpu: a NULL ->mm does not mean a thread is a kthread (git-fixes).
• ath9k: Fix general protection fault in ath9k_hif_usb_rx_cb (bsc#1111666).
• ath9k: Fix use-after-free Read in ath9k_wmi_ctrl_rx (bsc#1111666).
• ath9k: Fix use-after-free Write in ath9k_htc_rx_msg (bsc#1111666).
• ath9x: Fix stack-out-of-bounds Write in ath9k_hif_usb_rx_cb (bsc#1111666).
• ax25: fix setsockopt(SO_BINDTODEVICE) (networking-stable-20_05_27).
• b43: Fix connection problem with WPA3 (bsc#1111666).
• b43_legacy: Fix connection problem with WPA3 (bsc#1111666).
• be2net: fix link failure after ethtool offline test (git-fixes).
• block, bfq: add requeue-request hook (bsc#1104967 bsc#1171673).
• block, bfq:…

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

The following security bugs were fixed:

• CVE-2020-0305: In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1174462).
• CVE-2019-20908: An issue was discovered in drivers/firmware/efi/efi.c where incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032 (bnc#1173567).
• CVE-2020-15780: An issue was discovered in drivers/acpi/acpi_configfs.c where injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30 (bnc#1173573).
• CVE-2020-15393: usbtest_disconnect in drivers/usb/misc/usbtest.c has a memory leak, aka CID-28ebeb8db770 (bnc#1173514).
• CVE-2020-12771: btree_gc_coalesce in drivers/md/bcache/btree.c had a deadlock if a coalescing operation fails (bnc#1171732).
• CVE-2019-16746: net/wireless/nl80211.c did not check the length of variable elements in a beacon head, leading to a buffer overflow (bnc#1152107).
• CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).
• CVE-2020-10769: A buffer over-read flaw was found in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. When a payload longer than 4 bytes, and is not following 4-byte alignment boundary guidelines, it causes a buffer over-read threat, leading to a system crash. This flaw allowed a local attacker with user privileges to cause a denial of service (bnc#1173265).
• CVE-2020-10773: A kernel stack information leak on s390/s390x was fixed (bnc#1172999).
• CVE-2020-14416: A race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).
• CVE-2020-10768: Indirect branch speculation could have been enabled after it was force-disabled by the PR_SPEC_FORCE_DISABLE prctl command. (bnc#1172783).
• CVE-2020-10766: Fixed Rogue cross-process SSBD shutdown, where a Linux scheduler logical bug allows an attacker to turn off the SSBD protection. (bnc#1172781).
• CVE-2020-10767: Indirect Branch Prediction Barrier was force-disabled when STIBP is unavailable or enhanced IBRS is available. (bnc#1172782).
• CVE-2020-13974: drivers/tty/vt/keyboard.c had an integer overflow if k_ascii is called several times in a row, aka CID-b86dab054059. (bnc#1172775).
• CVE-2019-20810: go7007_snd_init in drivers/media/usb/go7007/snd-go7007.c in the Linux kernel did not call snd_card_free for a failure path, which causes a memory leak, aka CID-9453264ef586 (bnc#1172458).

The following non-security bugs were fixed:

• ACPI: PM: Avoid using power resources if there are none for D0 (bsc#1051510).
• ALSA: es1688: Add the missed snd_card_free() (bsc#1051510).
• bcache: Fix an error code in bch_dump_read() (git fixes (block drivers)).
• block, bfq: add requeue-request hook (bsc#1104967 bsc#1171673).
• block, bfq: postpone rq preparation to insert or merge (bsc#1104967 bsc#1171673).
• block: remove QUEUE_FLAG_STACKABLE (git fixes (block drivers)).
• block: sed-opal: fix sparse warning: convert __be64 data (git fixes (block drivers)).
• btrfs: always wait on ordered extents at fsync time (bsc#1171761).
• btrfs: clean up the left over logged_list usage (bsc#1171761).
• btrfs: do not zero f_bavail if we have available space (bsc#1168081).
• btrfs: fix list_add corruption and soft lockups in fsync (bsc#1171761).
• btrfs: fix missing data checksums after a ranged fsync (msync) (bsc#1171761).
• btrfs: fix missing file extent item for hole after ranged fsync (bsc#1171761).
• btrfs: fix missing hole after…

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

The following security bugs were fixed:

• CVE-2020-14331: A buffer over write in vgacon_scroll was fixed (bnc#1174205).
• CVE-2020-10135: Legacy pairing and secure-connections pairing authentication in Bluetooth BR/EDR Core Specification v5.2 and earlier may have allowed an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key (bnc#1171988).
• CVE-2020-0305: In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1174462).
• CVE-2019-20908: An issue was discovered in drivers/firmware/efi/efi.c where incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032 (bnc#1173567).
• CVE-2020-10781: zram sysfs resource consumption was fixed (bnc#1173074).
• CVE-2020-15780: An issue was discovered in drivers/acpi/acpi_configfs.c where injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30 (bnc#1173573).
• CVE-2020-15393: usbtest_disconnect in drivers/usb/misc/usbtest.c had a memory leak, aka CID-28ebeb8db770 (bnc#1173514).
• CVE-2020-12771: btree_gc_coalesce in drivers/md/bcache/btree.c had a deadlock if a coalescing operation fails (bnc#1171732).
• CVE-2019-16746: net/wireless/nl80211.c did not check the length of variable elements in a beacon head, leading to a buffer overflow (bnc#1152107).
• CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).
• CVE-2020-10769: A buffer over-read flaw was found in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. When a payload longer than 4 bytes, and is not following 4-byte alignment boundary guidelines, it causes a buffer over-read threat, leading to a system crash. This flaw allowed a local attacker with user privileges to cause a denial of service (bnc#1173265).
• CVE-2020-10773: A kernel stack information leak on s390/s390x was fixed (bnc#1172999).
• CVE-2020-14416: A race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).

The following non-security bugs were fixed:

• ACPI: GED: add support for _Exx / _Lxx handler methods (bsc#1111666).
• ACPI: GED: use correct trigger type field in _Exx / _Lxx handling (bsc#1111666).
• ACPI: NFIT: Fix unlock on error in scrub_show() (bsc#1171753).
• ACPI: sysfs: Fix pm_profile_attr type (bsc#1111666).
• ACPI: video: Use native backlight on Acer Aspire 5783z (bsc#1111666).
• ACPI: video: Use native backlight on Acer TravelMate 5735Z (bsc#1111666).
• ALSA: hda - let hs_mic be picked ahead of hp_mic (bsc#1111666).
• ALSA: hda/realtek - Enable Speaker for ASUS UX533 and UX534 (bsc#1111666).
• ALSA: lx6464es - add support for LX6464ESe pci express variant (bsc#1111666).
• ALSA: opl3: fix infoleak in opl3 (bsc#1111666).
• ALSA: usb-audio: add quirk for MacroSilicon MS2109 (bsc#1111666).
• ALSA: usb-audio: Fix packet size calculation (bsc#1111666).
• ALSA: usb-audio: Improve frames size computation (bsc#1111666).
• amdgpu: a NULL ->mm does not mean a thread is a kthread (git-fixes).
• ath9k: Fix general protection fault in ath9k_hif_usb_rx_cb (bsc#1111666).
• ath9k: Fix use-after-free Read in ath9k_wmi_ctrl_rx (bsc#1111666).
• ath9k: Fix use-after-free Write in ath9k_htc_rx_msg (bsc#1111666). -…

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

The following security bugs were fixed:

• CVE-2020-10135: Legacy pairing and secure-connections pairing authentication in Bluetooth BR/EDR Core Specification v5.2 and earlier may have allowed an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key (bnc#1171988).
• CVE-2020-0305: In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1174462).
• CVE-2019-20908: An issue was discovered in drivers/firmware/efi/efi.c where incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032 (bnc#1173567).
• CVE-2020-10781: zram sysfs resource consumption was fixed (bnc#1173074).
• CVE-2020-15780: An issue was discovered in drivers/acpi/acpi_configfs.c where injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30 (bnc#1173573).
• CVE-2020-15393: usbtest_disconnect in drivers/usb/misc/usbtest.c had a memory leak, aka CID-28ebeb8db770 (bnc#1173514).
• CVE-2020-12771: btree_gc_coalesce in drivers/md/bcache/btree.c had a deadlock if a coalescing operation fails (bnc#1171732).
• CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).
• CVE-2020-10769: A buffer over-read flaw was found in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. When a payload longer than 4 bytes, and is not following 4-byte alignment boundary guidelines, it causes a buffer over-read threat, leading to a system crash. This flaw allowed a local attacker with user privileges to cause a denial of service (bnc#1173265).
• CVE-2020-10773: A kernel stack information leak on s390/s390x was fixed (bnc#1172999).
• CVE-2020-14416: A race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).
• CVE-2020-10766: Fixed an issue which allowed an attacker with a local account to disable SSBD protection (bnc#1172781).
• CVE-2020-10767: Fixed an issue where Indirect Branch Prediction Barrier was disabled in certain circumstances, leaving the system open to a spectre v2 style attack (bnc#1172782).
• CVE-2020-10768: Fixed an issue with the prctl() function, where indirect branch speculation could be enabled even though it was diabled before (bnc#1172783).
• CVE-2020-13974: Fixed a integer overflow in drivers/tty/vt/keyboard.c, if k_ascii is called several times in a row (bnc#1172775).
• 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-2020-13974: Fixed an integer overflow in drivers/tty/vt/keyboard.c which could have been caused by calling multiple time in a row k_ascii (bsc#1172775).
• 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…

The SUSE Linux Enterprise 12 SP5 RT kernel was updated to 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-2020-13143: 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-2020-12659: Fixed an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) due to improper headroom validation (bsc#1171214).
• 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-2020-10757: 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 dereference in SELinux subsystem which could have allowed a remote network user to crash the kernel resulting in a denial of service (bsc#1171191).
• CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).
• CVE-2019-20908: An issue was discovered in drivers/firmware/efi/efi.c where incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032 (bnc#1173567).
• CVE-2020-10781: zram sysfs resource consumption was fixed (bnc#1173074).
• CVE-2020-15780: An issue was discovered in drivers/acpi/acpi_configfs.c where injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30 (bnc#1173573).
• CVE-2020-15393: usbtest_disconnect in drivers/usb/misc/usbtest.c had a memory leak, aka CID-28ebeb8db770 (bnc#1173514).
• CVE-2020-12771: btree_gc_coalesce in drivers/md/bcache/btree.c had a deadlock if a coalescing operation fails (bnc#1171732).
• CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).
• CVE-2020-10769: A buffer over-read flaw was found in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. When a payload longer…

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

The following security bugs were fixed:

• CVE-2020-10135: Legacy pairing and secure-connections pairing authentication in Bluetooth BR/EDR Core Specification v5.2 and earlier may have allowed an unauthenticated user to complete authentication without pairing credentials via adjacent access. An unauthenticated, adjacent attacker could impersonate a Bluetooth BR/EDR master or slave to pair with a previously paired remote device to successfully complete the authentication procedure without knowing the link key (bnc#1171988).
• CVE-2020-0305: In cdev_get of char_dev.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1174462).
• CVE-2019-20908: An issue was discovered in drivers/firmware/efi/efi.c where incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032 (bnc#1173567).
• CVE-2020-10781: zram sysfs resource consumption was fixed (bnc#1173074).
• CVE-2020-15780: An issue was discovered in drivers/acpi/acpi_configfs.c where injection of malicious ACPI tables via configfs could be used by attackers to bypass lockdown and secure boot restrictions, aka CID-75b0cea7bf30 (bnc#1173573).
• CVE-2020-15393: usbtest_disconnect in drivers/usb/misc/usbtest.c had a memory leak, aka CID-28ebeb8db770 (bnc#1173514).
• CVE-2020-12771: btree_gc_coalesce in drivers/md/bcache/btree.c had a deadlock if a coalescing operation fails (bnc#1171732).
• CVE-2020-12888: The VFIO PCI driver mishandled attempts to access disabled memory space (bnc#1171868).
• CVE-2020-10769: A buffer over-read flaw was found in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. When a payload longer than 4 bytes, and is not following 4-byte alignment boundary guidelines, it causes a buffer over-read threat, leading to a system crash. This flaw allowed a local attacker with user privileges to cause a denial of service (bnc#1173265).
• CVE-2020-10773: A kernel stack information leak on s390/s390x was fixed (bnc#1172999).
• CVE-2020-14416: A race condition in tty->disc_data handling in the slip and slcan line discipline could lead to a use-after-free, aka CID-0ace17d56824. This affects drivers/net/slip/slip.c and drivers/net/can/slcan.c (bnc#1162002).
• CVE-2020-10766: Fixed an issue which allowed an attacker with a local account to disable SSBD protection (bnc#1172781).
• CVE-2020-10767: Fixed an issue where Indirect Branch Prediction Barrier was disabled in certain circumstances, leaving the system open to a spectre v2 style attack (bnc#1172782).
• CVE-2020-10768: Fixed an issue with the prctl() function, where indirect branch speculation could be enabled even though it was diabled before (bnc#1172783).
• CVE-2020-13974: Fixed a integer overflow in drivers/tty/vt/keyboard.c, if k_ascii is called several times in a row (bnc#1172775).
• 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-2020-13143: 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-2020-12659: Fixed an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) due to improper headroom validation (bsc#1171214).
• 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…

It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-18808)

It was discovered that the Conexant 23885 TV card device driver for the Linux kernel did not properly deallocate memory in some error conditions. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-19054)

It was discovered that the VFIO PCI driver in the Linux kernel did not properly handle attempts to access disabled memory spaces. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-12888)

It was discovered that the state of network RNG in the Linux kernel was potentially observable. A remote attacker could use this to expose sensitive information. (CVE-2020-16166)

It was discovered that the NFS client implementation in the Linux kernel did not properly perform bounds checking before copying security labels in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-25212)

It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-18808)

It was discovered that the Conexant 23885 TV card device driver for the Linux kernel did not properly deallocate memory in some error conditions. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-19054)

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-2019-19061)

It was discovered that the AMD Audio Coprocessor driver for the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker with the ability to load modules could use this to cause a denial of service (memory exhaustion). (CVE-2019-19067)

It was discovered that the Atheros HTC based wireless driver in the Linux kernel did not properly deallocate in certain error conditions. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-19073, CVE-2019-19074)

It was discovered that the F2FS file system in the Linux kernel did not properly perform bounds checking in some situations, leading to an out-of- bounds read. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2019-9445)

It was discovered that the VFIO PCI driver in the Linux kernel did not properly handle attempts to access disabled memory spaces. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-12888)

It was discovered that the cgroup v2 subsystem in the Linux kernel did not properly perform reference counting in some situations, leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. (CVE-2020-14356)

It was discovered that the state of network RNG in the Linux kernel was potentially observable. A remote attacker could use this to expose sensitive information. (CVE-2020-16166)

It was discovered that the VFIO PCI driver in the Linux kernel did not properly handle attempts to access disabled memory spaces. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-12888)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did not properly verify certain fragmented frames. A physically proximate attacker could possibly use this issue to inject or decrypt packets. (CVE-2020-26141)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation accepted plaintext fragments in certain situations. A physically proximate attacker could use this issue to inject packets. (CVE-2020-26145)

It was discovered that a race condition existed in the Atheros Ath9k WiFi driver in the Linux kernel. An attacker could possibly use this to expose sensitive information (WiFi network traffic). (CVE-2020-3702)

It was discovered a race condition existed in the Unix domain socket implementation in the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-0920)

It was discovered that the IPv6 implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-0935)

Zygo Blaxell discovered that the btrfs file system implementation in the Linux kernel contained a race condition during certain cloning operations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2021-28964)

Dan Carpenter discovered that the block device manager (dm) implementation in the Linux kernel contained a buffer overflow in the ioctl for listing devices. A privileged local attacker could use this to cause a denial of service (system crash). (CVE-2021-31916)

It was discovered that the Option USB High Speed Mobile device driver in the Linux kernel did not properly handle error conditions. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-37159)

It was discovered that the network packet filtering implementation in the Linux kernel did not properly initialize information in certain circumstances. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-39636)

Jann Horn discovered a race condition in the Unix domain socket implementation in the Linux kernel that could result in a read-after-free. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-4083)

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

Brendan Dolan-Gavitt discovered that the Marvell WiFi-Ex USB device driver in the Linux kernel did not properly handle some error conditions. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2021-43976)

Amit Klein discovered that the IPv4 implementation in the Linux kernel could disclose internal state in some situations. An attacker could possibly use this to expose sensitive information. (CVE-2021-45486)