CVE-2020-28974

A slab-out-of-bounds read in fbcon in the Linux kernel before 5.9.7 could be used by local attackers to read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height.

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

Security Fix(es):

• kernel: Integer overflow in Intel(R) Graphics Drivers (CVE-2020-12362)

• kernel: memory leak in sof_set_get_large_ctrl_data() function in sound/soc/sof/ipc.c (CVE-2019-18811)

• kernel: use-after-free caused by a malicious USB device in the drivers/usb/misc/adutux.c driver (CVE-2019-19523)

• kernel: use-after-free bug caused by a malicious USB device in the drivers/usb/misc/iowarrior.c driver (CVE-2019-19528)

• kernel: possible out of bounds write in kbd_keycode of keyboard.c (CVE-2020-0431)

• kernel: DoS by corrupting mountpoint reference counter (CVE-2020-12114)

• kernel: use-after-free in usb_sg_cancel function in drivers/usb/core/message.c (CVE-2020-12464)

• kernel: buffer uses out of index in ext3/4 filesystem (CVE-2020-14314)

• kernel: Use After Free vulnerability in cgroup BPF component (CVE-2020-14356)

• kernel: NULL pointer dereference in serial8250_isa_init_ports function in drivers/tty/serial/8250/8250_core.c (CVE-2020-15437)

• kernel: umask not applied on filesystem without ACL support (CVE-2020-24394)

• kernel: TOCTOU mismatch in the NFS client code (CVE-2020-25212)

• kernel: incomplete permission checking for access to rbd devices (CVE-2020-25284)

• kernel: race condition between hugetlb sysctl handlers in mm/hugetlb.c (CVE-2020-25285)

• kernel: improper input validation in ppp_cp_parse_cr function leads to memory corruption and read overflow (CVE-2020-25643)

• kernel: perf_event_parse_addr_filter memory (CVE-2020-25704)

• kernel: use-after-free in kernel midi subsystem (CVE-2020-27786)

• kernel: child process is able to access parent mm through hfi dev file handle (CVE-2020-27835)

• kernel: slab-out-of-bounds read in fbcon (CVE-2020-28974)

• kernel: fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent (CVE-2020-35508)

• kernel: fuse: fuse_do_getattr() calls make_bad_inode() in inappropriate situations (CVE-2020-36322)

• kernel: use after free in tun_get_user of tun.c could lead to local escalation of privilege (CVE-2021-0342)

• kernel: NULL pointer dereferences in ov511_mode_init_regs and ov518_mode_init_regs in drivers/media/usb/gspca/ov519.c (CVE-2020-11608)

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

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

This update provides an upgrade to the new upstream 5.10 longterm branch, currently based on 5.10.6, adding new features and new and improved hardware support.

This update also fixes at least the following security issues:

In binder_release_work of binder.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation (CVE-2020-0423).

In various methods of hid-multitouch.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation (CVE-2020-0465).

Insufficient access control in the Linux kernel driver for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access (CVE-2020-8694).

A potential vulnerability in the AMD extension to Linux "hwmon" service may allow an attacker to use the Linux-based Running Average Power Limit (RAPL) interface to show various side channel attacks. In line with industry partners, AMD has updated the RAPL interface to require privileged access (CVE-2020-12912).

A use-after-free memory flaw was found in the perf subsystem allowing a local attacker with permission to monitor perf events to corrupt memory and possibly escalate privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability (CVE-2020-14351).

A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality (CVE-2020-25656).

Linux kernel concurrency use-after-free in vt (CVE-2020-25668).

Linux Kernel use-after-free in sunkbd_reinit (CVE-2020-25669).

A flaw memory leak in the Linux kernel performance monitoring subsystem was found in the way if using PERF_EVENT_IOC_SET_FILTER. A local user could use this flaw to starve the resources causing denial of service (CVE-2020-25704).

A flaw in the way reply ICMP packets are limited in the Linux kernel functionality was found that allows to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypassing source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well (CVE-2020-25705).

An issue was discovered in ioapic_lazy_update_eoi in arch/x86/kvm/ioapic.c in the Linux kernel before 5.9.2. It has an infinite loop related to improper interaction between a resampler and edge triggering (CVE-2020-27152).

An issue was discovered in the Linux kernel before 5.8.15. scalar32_min_max_or in kernel/bpf/verifier.c mishandles bounds tracking during use of 64-bit values (CVE-2020-27194).

An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. Guest OS users can cause a denial of service (host OS hang) via a high rate of events to dom0 (CVE-2020-27673).

An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. drivers/xen/events/events_base.c allows event-channel removal during the event-handling loop (a race condition). This can cause a use-after-free or NULL pointer dereference, as demonstrated by a dom0 crash via events for an in-reconfiguration paravirtualized device (CVE-2020-27675).

A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat…

This update provides an upgrade to the new upstream 5.10 longterm branch, currently based on 5.10.6, adding new features and new and improved hardware support.

This update also fixes at least the following security issues:

In binder_release_work of binder.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation (CVE-2020-0423).

In various methods of hid-multitouch.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation (CVE-2020-0465).

Insufficient access control in the Linux kernel driver for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access (CVE-2020-8694).

A potential vulnerability in the AMD extension to Linux "hwmon" service may allow an attacker to use the Linux-based Running Average Power Limit (RAPL) interface to show various side channel attacks. In line with industry partners, AMD has updated the RAPL interface to require privileged access (CVE-2020-12912).

A use-after-free memory flaw was found in the perf subsystem allowing a local attacker with permission to monitor perf events to corrupt memory and possibly escalate privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability (CVE-2020-14351).

A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality (CVE-2020-25656).

Linux kernel concurrency use-after-free in vt (CVE-2020-25668).

Linux Kernel use-after-free in sunkbd_reinit (CVE-2020-25669).

A flaw memory leak in the Linux kernel performance monitoring subsystem was found in the way if using PERF_EVENT_IOC_SET_FILTER. A local user could use this flaw to starve the resources causing denial of service (CVE-2020-25704).

A flaw in the way reply ICMP packets are limited in the Linux kernel functionality was found that allows to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypassing source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well (CVE-2020-25705).

An issue was discovered in ioapic_lazy_update_eoi in arch/x86/kvm/ioapic.c in the Linux kernel before 5.9.2. It has an infinite loop related to improper interaction between a resampler and edge triggering (CVE-2020-27152).

An issue was discovered in the Linux kernel before 5.8.15. scalar32_min_max_or in kernel/bpf/verifier.c mishandles bounds tracking during use of 64-bit values (CVE-2020-27194).

An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. Guest OS users can cause a denial of service (host OS hang) via a high rate of events to dom0 (CVE-2020-27673).

An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. drivers/xen/events/events_base.c allows event-channel removal during the event-handling loop (a race condition). This can cause a use-after-free or NULL pointer dereference, as demonstrated by a dom0 crash via events for an in-reconfiguration paravirtualized device (CVE-2020-27675).

A use-after-free flaw was found in kernel/trace/ring_buffer.c in Linux kernel (before 5.10-rc1). There was a race problem in trace_open and resize of cpu buffer running parallely on different cpus, may cause a denial of service problem (DOS). This flaw could even allow a local attacker with special user privilege to a kernel information leak threat…

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

The following security bugs were fixed:

• CVE-2020-29369: There was a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe (bnc#1173504 bnc#1179432).
• CVE-2020-29371: An issue was discovered in romfs_dev_read in fs/romfs/storage.c, where uninitialized memory could leak to userspace, aka CID-bcf85fcedfdd (bnc#1179429).
• CVE-2020-15436: Use-after-free vulnerability in fs/block_dev.c allowed local users to gain privileges or cause a denial of service by leveraging improper access to a certain error field (bnc#1179141).
• CVE-2020-25705: A flaw in the way reply ICMP packets are limited was found that allowed to quickly scan open UDP ports. This flaw allowed an off-path remote user to effectively bypassing source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well. Kernel versions may be vulnerable to this issue (bnc#1175721 bnc#1178782).
• CVE-2020-15437: The Linux kernel was vulnerable to a NULL pointer dereference in drivers/tty/serial/8250/8250_core.c:serial8250_isa_init_ports() that allowed local users to cause a denial of service by using the p->serial_in pointer which uninitialized (bnc#1179140).
• CVE-2020-27777: Restricted RTAS requests from userspace (bsc#1179107).
• CVE-2020-28974: A slab-out-of-bounds read in fbcon could be used by local attackers to read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height (bnc#1178589).
• CVE-2020-4788: IBM Power9 (AIX 7.1, 7.2, and VIOS 3.1) processors could allow a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances. IBM X-Force ID: 189296 (bnc#1177666).
• CVE-2020-28941: Local attackers on systems with the speakup driver could cause a local denial of service attack, aka CID-d41227544427. This occurs because of an invalid free when the line discipline is used more than once (bnc#1178740).
• CVE-2020-28915: A buffer over-read (at the framebuffer layer) in the fbcon code could be used by local attackers to read kernel memory, aka CID-6735b4632def (bnc#1178886).
• CVE-2020-25669: Avoid a use-after-free in teardown paths in sunkbd (bsc#1178182).

The following non-security bugs were fixed:

• 9P: Cast to loff_t before multiplying (git-fixes).
• ACPI: GED: fix -Wformat (git-fixes).
• ACPI: NFIT: Fix comparison to '-ENXIO' (git-fixes).
• ACPI: button: Add DMI quirk for Medion Akoya E2228T (git-fixes).
• ACPI: dock: fix enum-conversion warning (git-fixes).
• ACPICA: Add NHLT table signature (bsc#1176200).
• ALSA: ctl: fix error path at adding user-defined element set (git-fixes).
• ALSA: firewire: Clean up a locking issue in copy_resp_to_buf() (git-fixes).
• ALSA: hda/realtek - Add supported for Lenovo ThinkPad Headset Button (git-fixes).
• ALSA: hda/realtek - Add supported mute Led for HP (git-fixes).
• ALSA: hda/realtek - HP Headset Mic can't detect after boot (git-fixes).
• ALSA: hda/realtek: Add some Clove SSID in the ALC293(ALC1220) (git-fixes).
• ALSA: hda: Reinstate runtime_allow() for all hda controllers (git-fixes).
• ALSA: hda: fix jack detection with Realtek codecs when in D3 (git-fixes).
• ALSA: mixart: Fix mutex deadlock (git-fixes).
• ALSA: usb-audio: Add delay quirk for all Logitech USB devices (git-fixes).
• ASoC: qcom: lpass-platform: Fix memory leak (git-fixes).
• Add bug reference to two hv_netvsc patches (bsc#1178853).
• Convert trailing spaces and periods in path components (bsc#1179424).
• Documentation/admin-guide/module-signing.rst: add openssl command option example for CodeSign EKU (bsc#1177353, bsc#1179076).
• Drop sysctl files for…

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

The following security bugs were fixed:

• CVE-2020-29371: An issue was discovered in romfs_dev_read in fs/romfs/storage.c where uninitialized memory leaks to userspace, aka CID-bcf85fcedfdd (bnc#1179429).
• CVE-2020-15436: Use-after-free vulnerability in fs/block_dev.c allowed local users to gain privileges or cause a denial of service by leveraging improper access to a certain error field (bnc#1179141).
• CVE-2020-4788: IBM Power9 (AIX 7.1, 7.2, and VIOS 3.1) processors could allow a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances. IBM X-Force ID: 189296 (bnc#1177666).
• CVE-2018-20669: An issue where a provided address with access_ok() is not checked was discovered in i915_gem_execbuffer2_ioctl in drivers/gpu/drm/i915/i915_gem_execbuffer.c, where a local attacker can craft a malicious IOCTL function call to overwrite arbitrary kernel memory, resulting in a Denial of Service or privilege escalation (bnc#1122971).
• CVE-2020-15437: The Linux kernel was vulnerable to a NULL pointer dereference in drivers/tty/serial/8250/8250_core.c:serial8250_isa_init_ports() that allowed local users to cause a denial of service by using the p->serial_in pointer which uninitialized (bnc#1179140).
• CVE-2020-27777: Restrict RTAS requests from userspace (CVE-2020-27777 bsc#1179107).
• CVE-2020-28974: A slab-out-of-bounds read in fbcon could be used by local attackers to read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height (bnc#1178589).

The following non-security bugs were fixed:

• ACPI: GED: fix -Wformat (git-fixes).
• ALSA: ctl: fix error path at adding user-defined element set (git-fixes).
• ALSA: firewire: Clean up a locking issue in copy_resp_to_buf() (git-fixes).
• ALSA: mixart: Fix mutex deadlock (git-fixes).
• ASoC: qcom: lpass-platform: Fix memory leak (git-fixes).
• Bluetooth: btusb: Fix and detect most of the Chinese Bluetooth controllers (git-fixes).
• Bluetooth: hci_bcm: fix freeing not-requested IRQ (git-fixes).
• Convert trailing spaces and periods in path components (bsc#1179424).
• Drivers: hv: vmbus: Remove the unused 'tsc_page' from struct hv_context (git-fixes).
• IB/cma: Fix ports memory leak in cma_configfs (bsc#1111666)
• IB/core: Set qp->real_qp before it may be accessed (bsc#1111666)
• IB/hfi1, qib: Ensure RCU is locked when accessing list (bsc#1111666)
• IB/hfi1: Add RcvShortLengthErrCnt to hfi1stats (bsc#1111666)
• IB/hfi1: Add missing INVALIDATE opcodes for trace (bsc#1111666)
• IB/hfi1: Add software counter for ctxt0 seq drop (bsc#1111666)
• IB/hfi1: Avoid hardlockup with flushlist_lock (bsc#1111666)
• IB/hfi1: Call kobject_put() when kobject_init_and_add() fails (bsc#1111666)
• IB/hfi1: Check for error on call to alloc_rsm_map_table (bsc#1111666)
• IB/hfi1: Close PSM sdma_progress sleep window (bsc#1111666)
• IB/hfi1: Define variables as unsigned long to fix KASAN warning (bsc#1111666)
• IB/hfi1: Ensure full Gen3 speed in a Gen4 system (bsc#1111666)
• IB/hfi1: Fix Spectre v1 vulnerability (bsc#1111666)
• IB/hfi1: Fix memory leaks in sysfs registration and unregistration (bsc#1111666)
• IB/hfi1: Handle port down properly in pio (bsc#1111666)
• IB/hfi1: Handle wakeup of orphaned QPs for pio (bsc#1111666)
• IB/hfi1: Insure freeze_work work_struct is canceled on shutdown (bsc#1111666)
• IB/hfi1: Remove unused define (bsc#1111666)
• IB/hfi1: Silence txreq allocation warnings (bsc#1111666)
• IB/hfi1: Validate page aligned for a given virtual address (bsc#1111666)
• IB/hfi1: Wakeup QPs orphaned on wait list after flush (bsc#1111666)
• IB/ipoib: Fix double free of skb in case of multicast traffic in CM mode (bsc#1111666)
• IB/ipoib: Fix for use-after-free in ipoib_cm_tx_start (bsc#1111666)
• IB/ipoib: drop useless LIST_HEAD (bsc#1111666) -…

The SUSE Linux Enterprise 15 SP2 kernel was updated to 3.12.31 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c which could have allowed local users to gain privileges or cause a denial of service (bsc#1179141).
• CVE-2020-15437: Fixed a null pointer dereference which could have allowed local users to cause a denial of service(bsc#1179140).
• CVE-2020-25668: Fixed a concurrency use-after-free in con_font_op (bsc#1178123).
• CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc#1178182).
• CVE-2020-25704: Fixed a leak in perf_event_parse_addr_filter() (bsc#1178393).
• CVE-2020-27777: Restrict RTAS requests from userspace (bsc#1179107)
• CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886).
• CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel (bsc#1178589).
• CVE-2020-29371: Fixed uninitialized memory leaks to userspace (bsc#1179429).
• CVE-2020-25705: Fixed an issue which could have allowed to quickly scan open UDP ports. This flaw allowed an off-path remote user to effectively bypassing source port UDP randomization (bsc#1175721).
• CVE-2020-28941: Fixed an issue where local attackers on systems with the speakup driver could cause a local denial of service attack (bsc#1178740).
• CVE-2020-4788: Fixed an issue with IBM Power9 processors could have allowed a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances (bsc#1177666).
• CVE-2020-29369: Fixed a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe (bnc#1173504 1179432).

The following non-security bugs were fixed:

• 9P: Cast to loff_t before multiplying (git-fixes).
• ACPI: button: Add DMI quirk for Medion Akoya E2228T (git-fixes).
• ACPICA: Add NHLT table signature (bsc#1176200).
• ACPI: dock: fix enum-conversion warning (git-fixes).
• ACPI / extlog: Check for RDMSR failure (git-fixes).
• ACPI: GED: fix -Wformat (git-fixes).
• ACPI: NFIT: Fix comparison to '-ENXIO' (git-fixes).
• ACPI: video: use ACPI backlight for HP 635 Notebook (git-fixes).
• Add bug reference to two hv_netvsc patches (bsc#1178853).
• ALSA: ctl: fix error path at adding user-defined element set (git-fixes).
• ALSA: firewire: Clean up a locking issue in copy_resp_to_buf() (git-fixes).
• ALSA: fix kernel-doc markups (git-fixes).
• ALSA: hda: fix jack detection with Realtek codecs when in D3 (git-fixes).
• ALSA: hda: prevent undefined shift in snd_hdac_ext_bus_get_link() (git-fixes).
• ALSA: hda/realtek: Add some Clove SSID in the ALC293(ALC1220) (git-fixes).
• ALSA: hda/realtek - Add supported for Lenovo ThinkPad Headset Button (git-fixes).
• ALSA: hda/realtek - Add supported mute Led for HP (git-fixes).
• ALSA: hda/realtek - Enable headphone for ASUS TM420 (git-fixes).
• ALSA: hda/realtek - Fixed HP headset Mic can't be detected (git-fixes).
• ALSA: hda/realtek - HP Headset Mic can't detect after boot (git-fixes).
• ALSA: hda: Reinstate runtime_allow() for all hda controllers (git-fixes).
• ALSA: mixart: Fix mutex deadlock (git-fixes).
• ALSA: usb-audio: Add delay quirk for all Logitech USB devices (git-fixes).
• ALSA: usb-audio: Add implicit feedback quirk for MODX (git-fixes).
• ALSA: usb-audio: Add implicit feedback quirk for Qu-16 (git-fixes).
• ALSA: usb-audio: Add implicit feedback quirk for Zoom UAC-2 (git-fixes).
• ALSA: usb-audio: add usb vendor id as DSD-capable for Khadas devices (git-fixes).
• arm64: bpf: Fix branch offset in JIT (git-fixes).
• arm64: dts: allwinner: a64: bananapi-m64: Enable RGMII RX/TX delay on PHY (git-fixes).
• arm64: dts: allwinner: a64: OrangePi Win: Fix ethernet node (git-fixes).
• arm64:…

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 realtime kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-25705: A flaw in the way reply ICMP packets are limited in was found that allowed to quickly scan open UDP ports. This flaw allowed an off-path remote user to effectively bypassing source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software and services that rely on UDP source port randomization (like DNS) are indirectly affected as well. Kernel versions may be vulnerable to this issue (bsc#1175721, bsc#1178782).
• CVE-2020-8694: Insufficient access control for some Intel(R) Processors may have allowed an authenticated user to potentially enable information disclosure via local access (bsc#1170415).
• CVE-2020-25668: Fixed a use-after-free in con_font_op() (bsc#1178123).
• CVE-2020-25656: Fixed a concurrency use-after-free in vt_do_kdgkb_ioctl (bnc#1177766).
• CVE-2020-25285: Fixed a race condition between hugetlb sysctl handlers in mm/hugetlb.c (bnc#1176485).
• CVE-2020-14351: Fixed a race in the perf_mmap_close() function (bsc#1177086).
• CVE-2020-16120: Fixed permission check to open real file when using overlayfs. It was possible to have a file not readable by an unprivileged user be copied to a mountpoint controlled by that user and then be able to access the file (bsc#1177470).
• CVE-2020-12351: Fixed a type confusion while processing AMP packets aka 'BleedingTooth' aka 'BadKarma' (bsc#1177724).
• CVE-2020-12352: Fixed an information leak when processing certain AMP packets aka 'BleedingTooth' (bsc#1177725).
• CVE-2020-25704: Fixed a memory leak in perf_event_parse_addr_filter() (bsc#1178393).
• CVE-2020-24490: Fixed a heap buffer overflow when processing extended advertising report events aka 'BleedingTooth (bsc#1177726).
• CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon (bsc#1178589)

The following non-security bugs were fixed:

• 9P: Cast to loff_t before multiplying (git-fixes).
• ACPI: Always build evged in (git-fixes).
• ACPI: button: fix handling lid state changes when input device closed (git-fixes).
• ACPI: configfs: Add missing config_item_put() to fix refcount leak (git-fixes).
• acpi-cpufreq: Honor _PSD table setting on new AMD CPUs (git-fixes).
• ACPI: debug: do not allow debugging when ACPI is disabled (git-fixes).
• ACPI: dock: fix enum-conversion warning (git-fixes).
• ACPI / extlog: Check for RDMSR failure (git-fixes).
• ACPI: GED: fix -Wformat (git-fixes).
• ACPI: NFIT: Fix comparison to '-ENXIO' (git-fixes).
• ACPI: video: use ACPI backlight for HP 635 Notebook (git-fixes).
• act_ife: load meta modules before tcf_idr_check_alloc() (networking-stable-20_09_24).
• ALSA: ac97: (cosmetic) align argument names (git-fixes).
• ALSA: aoa: i2sbus: use DECLARE_COMPLETION_ONSTACK() macro (git-fixes).
• ALSA: asihpi: fix spellint typo in comments (git-fixes).
• ALSA: atmel: ac97: clarify operator precedence (git-fixes).
• ALSA: bebob: potential info leak in hwdep_read() (git-fixes).
• ALSA: compress_offload: remove redundant initialization (git-fixes).
• ALSA: core: init: use DECLARE_COMPLETION_ONSTACK() macro (git-fixes).
• ALSA: core: pcm: simplify locking for timers (git-fixes).
• ALSA: core: timer: clarify operator precedence (git-fixes).
• ALSA: core: timer: remove redundant assignment (git-fixes).
• ALSA: ctl: Workaround for lockdep warning wrt card->ctl_files_rwlock (git-fixes).
• ALSA: fireworks: use semicolons rather than commas to separate statements (git-fixes).
• ALSA: fix kernel-doc markups (git-fixes).
• ALSA: hda: auto_parser: remove shadowed variable declaration (git-fixes).
• ALSA: hda: (cosmetic) align function parameters (git-fixes).
• ALSA: hda - Do not register a cb func if it is registered already (git-fixes).
• ALSA: hda - Fix the return value if cb func is already registered (git-fixes).
• ALSA: hda/hdmi: fix incorrect locking in hdmi_pcm_close…

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

The following security bugs were fixed:

• CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c which could have allowed local users to gain privileges or cause a denial of service (bsc#1179141).
• CVE-2020-15437: Fixed a null pointer dereference which could have allowed local users to cause a denial of service(bsc#1179140).
• CVE-2020-25668: Fixed a concurrency use-after-free in con_font_op (bsc#1178123).
• CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc#1178182).
• CVE-2020-25704: Fixed a leak in perf_event_parse_addr_filter() (bsc#1178393).
• CVE-2020-27777: Restrict RTAS requests from userspace (bsc#1179107)
• CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886).
• CVE-2020-28941: Fixed an issue where local attackers on systems with the speakup driver could cause a local denial of service attack (bsc#1178740).
• CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel (bsc#1178589).
• CVE-2020-29371: Fixed uninitialized memory leaks to userspace (bsc#1179429).
• CVE-2020-4788: Fixed an issue with IBM Power9 processors could have allowed a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances (bsc#1177666).
• CVE-2020-8694, CVE-2020-8695: Fixed an insufficient access control in the Linux kernel driver for some Intel(R) Processors which might have allowed an authenticated user to potentially enable information disclosure via local access (bsc#1170415 bsc#1170446)
• CVE-2020-28368: Fixed Intel RAPL sidechannel attack aka PLATYPUS attack (XSA-351 bsc#1178591).
• CVE-2020-29369: Fixed a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe (bnc#1173504 bsc#1179432).

The following non-security bugs were fixed:

• 9P: Cast to loff_t before multiplying (git-fixes).
• ACPI: button: Add DMI quirk for Medion Akoya E2228T (git-fixes).
• ACPICA: Add NHLT table signature (bsc#1176200).
• ACPI: dock: fix enum-conversion warning (git-fixes).
• ACPI / extlog: Check for RDMSR failure (git-fixes).
• ACPI: GED: fix -Wformat (git-fixes).
• ACPI: NFIT: Fix comparison to '-ENXIO' (git-fixes).
• ACPI: video: use ACPI backlight for HP 635 Notebook (git-fixes).
• Add bug reference to two hv_netvsc patches (bsc#1178853).
• ALSA: ctl: fix error path at adding user-defined element set (git-fixes).
• ALSA: firewire: Clean up a locking issue in copy_resp_to_buf() (git-fixes).
• ALSA: fix kernel-doc markups (git-fixes).
• ALSA: hda: fix jack detection with Realtek codecs when in D3 (git-fixes).
• ALSA: hda: prevent undefined shift in snd_hdac_ext_bus_get_link() (git-fixes).
• ALSA: hda/realtek: Add some Clove SSID in the ALC293(ALC1220) (git-fixes).
• ALSA: hda/realtek - Add supported for Lenovo ThinkPad Headset Button (git-fixes).
• ALSA: hda/realtek - Add supported mute Led for HP (git-fixes).
• ALSA: hda/realtek - Enable headphone for ASUS TM420 (git-fixes).
• ALSA: hda/realtek - Fixed HP headset Mic can't be detected (git-fixes).
• ALSA: hda/realtek - HP Headset Mic can't detect after boot (git-fixes).
• ALSA: hda: Reinstate runtime_allow() for all hda controllers (git-fixes).
• ALSA: mixart: Fix mutex deadlock (git-fixes).
• ALSA: usb-audio: Add delay quirk for all Logitech USB devices (git-fixes).
• ALSA: usb-audio: Add implicit feedback quirk for MODX (git-fixes).
• ALSA: usb-audio: Add implicit feedback quirk for Qu-16 (git-fixes).
• ALSA: usb-audio: Add implicit feedback quirk for Zoom UAC-2 (git-fixes).
• ALSA: usb-audio: add usb vendor id as DSD-capable for Khadas devices (git-fixes).
• arm64: bpf: Fix branch offset in JIT (git-fixes).
• arm64: dts:…

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

The following security bugs were fixed:

• CVE-2020-15437: Fixed a null pointer dereference which could have allowed local users to cause a denial of service(bsc#1179140).
• CVE-2020-27777: Restrict RTAS requests from userspace (bsc#1179107).
• CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel (bsc#1178589).
• CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886).

The following non-security bugs were fixed:

• ACPI: GED: fix -Wformat (git-fixes).
• ALSA: ctl: fix error path at adding user-defined element set (git-fixes).
• ALSA: firewire: Clean up a locking issue in copy_resp_to_buf() (git-fixes).
• ALSA: mixart: Fix mutex deadlock (git-fixes).
• arm64: KVM: Fix system register enumeration (bsc#1174726).
• arm/arm64: KVM: Add PSCI version selection API (bsc#1174726).
• ASoC: qcom: lpass-platform: Fix memory leak (git-fixes).
• ath10k: Acquire tx_lock in tx error paths (git-fixes).
• batman-adv: set .owner to THIS_MODULE (git-fixes).
• Bluetooth: btusb: Fix and detect most of the Chinese Bluetooth controllers (git-fixes).
• Bluetooth: hci_bcm: fix freeing not-requested IRQ (git-fixes).
• btrfs: account ticket size at add/delete time (bsc#1178897).
• btrfs: add helper to obtain number of devices with ongoing dev-replace (bsc#1178897).
• btrfs: check rw_devices, not num_devices for balance (bsc#1178897).
• btrfs: do not delete mismatched root refs (bsc#1178962).
• btrfs: fix btrfs_calc_reclaim_metadata_size calculation (bsc#1178897).
• btrfs: fix force usage in inc_block_group_ro (bsc#1178897).
• btrfs: fix invalid removal of root ref (bsc#1178962).
• btrfs: fix reclaim counter leak of space_info objects (bsc#1178897).
• btrfs: fix reclaim_size counter leak after stealing from global reserve (bsc#1178897).
• btrfs: kill min_allocable_bytes in inc_block_group_ro (bsc#1178897).
• btrfs: rework arguments of btrfs_unlink_subvol (bsc#1178962).
• btrfs: split dev-replace locking helpers for read and write (bsc#1178897).
• can: af_can: prevent potential access of uninitialized member in canfd_rcv() (git-fixes).
• can: af_can: prevent potential access of uninitialized member in can_rcv() (git-fixes).
• can: dev: can_restart(): post buffer from the right context (git-fixes).
• can: gs_usb: fix endianess problem with candleLight firmware (git-fixes).
• can: m_can: fix nominal bitiming tseg2 min for version >= 3.1 (git-fixes).
• can: m_can: m_can_handle_state_change(): fix state change (git-fixes).
• can: m_can: m_can_stop(): set device to software init mode before closing (git-fixes).
• can: mcba_usb: mcba_usb_start_xmit(): first fill skb, then pass to can_put_echo_skb() (git-fixes).
• can: peak_usb: fix potential integer overflow on shift of a int (git-fixes).
• ceph: add check_session_state() helper and make it global (bsc#1179259).
• ceph: check session state after bumping session->s_seq (bsc#1179259).
• ceph: fix race in concurrent __ceph_remove_cap invocations (bsc#1178635).
• cifs: Fix incomplete memory allocation on setxattr path (bsc#1179211).
• cifs: remove bogus debug code (bsc#1179427).
• cifs: Return the error from crypt_message when enc/dec key not found (bsc#1179426).
• Convert trailing spaces and periods in path components (bsc#1179424).
• Drivers: hv: vmbus: Remove the unused 'tsc_page' from struct hv_context (git-fixes).
• drm/sun4i: dw-hdmi: fix error return code in sun8i_dw_hdmi_bind() (git-fixes).
• efi: cper: Fix possible out-of-bounds access (git-fixes).
• efi/efivars: Add missing kobject_put() in sysfs entry creation error path (git-fixes).
• efi/esrt: Fix reference count leak in esre_create_sysfs_entry (git-fixes).
• efi: provide empty efi_enter_virtual_mode implementation (git-fixes).
• efivarfs: fix memory leak in…

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

The following security bugs were fixed:

• CVE-2020-15437: Fixed a null pointer dereference which could have allowed local users to cause a denial of service(bsc#1179140).
• CVE-2020-27777: Restrict RTAS requests from userspace (bsc#1179107).
• CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel (bsc#1178589).
• CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886).
• CVE-2020-8694: Insufficient access control for some Intel(R) Processors may have allowed an authenticated user to potentially enable information disclosure via local access (bsc#1170415).
• CVE-2020-25668: Fixed a use-after-free in con_font_op() (bsc#1178123).
• CVE-2020-25704: Fixed a memory leak in perf_event_parse_addr_filter() (bsc#1178393).
• CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc#1178182).

The following non-security bugs were fixed:

• 9P: Cast to loff_t before multiplying (git-fixes).
• acpi-cpufreq: Honor _PSD table setting on new AMD CPUs (git-fixes).
• ACPI: debug: do not allow debugging when ACPI is disabled (git-fixes).
• ACPI / extlog: Check for RDMSR failure (git-fixes).
• ACPI: GED: fix -Wformat (git-fixes).
• ACPI: NFIT: Fix comparison to '-ENXIO' (git-fixes).
• ACPI: video: use ACPI backlight for HP 635 Notebook (git-fixes).
• ALSA: ctl: fix error path at adding user-defined element set (git-fixes).
• ALSA: firewire: Clean up a locking issue in copy_resp_to_buf() (git-fixes).
• ALSA: hda - Fix the return value if cb func is already registered (git-fixes).
• ALSA: hda - Fix the return value if cb func is already registered (git-fixes).
• ALSA: hda: prevent undefined shift in snd_hdac_ext_bus_get_link() (git-fixes).
• ALSA: mixart: Fix mutex deadlock (git-fixes).
• ALSA: usb-audio: Fix potential use-after-free of streams (gix-fixes).
• arm64: KVM: Fix system register enumeration (bsc#1174726).
• arm64: Run ARCH_WORKAROUND_1 enabling code on all CPUs (git-fixes).
• arm/arm64: KVM: Add PSCI version selection API (bsc#1174726).
• ASoC: qcom: lpass-platform: Fix memory leak (git-fixes).
• ata: sata_rcar: Fix DMA boundary mask (git-fixes).
• ath10k: Acquire tx_lock in tx error paths (git-fixes).
• ath10k: fix VHT NSS calculation when STBC is enabled (git-fixes).
• ath10k: start recovery process when payload length exceeds max htc length for sdio (git-fixes).
• batman-adv: set .owner to THIS_MODULE (git-fixes).
• Bluetooth: btusb: Fix and detect most of the Chinese Bluetooth controllers (git-fixes).
• Bluetooth: hci_bcm: fix freeing not-requested IRQ (git-fixes).
• bpf: Zero-fill re-used per-cpu map element (git-fixes).
• btrfs: account ticket size at add/delete time (bsc#1178897).
• btrfs: add helper to obtain number of devices with ongoing dev-replace (bsc#1178897).
• btrfs: check rw_devices, not num_devices for balance (bsc#1178897).
• btrfs: do not delete mismatched root refs (bsc#1178962).
• btrfs: fix btrfs_calc_reclaim_metadata_size calculation (bsc#1178897).
• btrfs: fix force usage in inc_block_group_ro (bsc#1178897).
• btrfs: fix invalid removal of root ref (bsc#1178962).
• btrfs: fix reclaim counter leak of space_info objects (bsc#1178897).
• btrfs: fix reclaim_size counter leak after stealing from global reserve (bsc#1178897).
• btrfs: kill min_allocable_bytes in inc_block_group_ro (bsc#1178897).
• btrfs: rework arguments of btrfs_unlink_subvol (bsc#1178962).
• btrfs: split dev-replace locking helpers for read and write (bsc#1178897).
• bus/fsl_mc: Do not rely on caller to provide non NULL mc_io (git-fixes).
• can: af_can: prevent potential access of uninitialized member in canfd_rcv() (git-fixes).
• can: af_can: prevent potential access of uninitialized member in can_rcv() (git-fixes).
• can:…

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

The following security bugs were fixed:

• CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c which could have allowed local users to gain privileges or cause a denial of service (bsc#1179141).
• CVE-2020-15437: Fixed a null pointer dereference which could have allowed local users to cause a denial of service(bsc#1179140).
• CVE-2020-25668: Fixed a concurrency use-after-free in con_font_op (bsc#1178123).
• CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc#1178182).
• CVE-2020-25704: Fixed a leak in perf_event_parse_addr_filter() (bsc#1178393).
• CVE-2020-27777: Restrict RTAS requests from userspace (bsc#1179107)
• CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886).
• CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel (bsc#1178589).
• CVE-2020-29371: Fixed uninitialized memory leaks to userspace (bsc#1179429).
• CVE-2020-25705: Fixed an issue which could have allowed to quickly scan open UDP ports. This flaw allowed an off-path remote user to effectively bypassing source port UDP randomization (bsc#1175721).

The following non-security bugs were fixed:

• 9P: Cast to loff_t before multiplying (git-fixes).
• ACPI: GED: fix -Wformat (git-fixes).
• ACPI: NFIT: Fix comparison to '-ENXIO' (git-fixes).
• ALSA: ctl: fix error path at adding user-defined element set (git-fixes).
• ALSA: firewire: Clean up a locking issue in copy_resp_to_buf() (git-fixes).
• ALSA: hda - Fix the return value if cb func is already registered (git-fixes).
• ALSA: hda: prevent undefined shift in snd_hdac_ext_bus_get_link() (git-fixes).
• ALSA: mixart: Fix mutex deadlock (git-fixes).
• arm64: KVM: Fix system register enumeration (bsc#1174726).
• arm/arm64: KVM: Add PSCI version selection API (bsc#1174726).
• ASoC: qcom: lpass-platform: Fix memory leak (git-fixes).
• ath10k: Acquire tx_lock in tx error paths (git-fixes).
• batman-adv: set .owner to THIS_MODULE (git-fixes).
• Bluetooth: btusb: Fix and detect most of the Chinese Bluetooth controllers (git-fixes).
• Bluetooth: hci_bcm: fix freeing not-requested IRQ (git-fixes).
• bpf: Zero-fill re-used per-cpu map element (git-fixes).
• btrfs: account ticket size at add/delete time (bsc#1178897).
• btrfs: add helper to obtain number of devices with ongoing dev-replace (bsc#1178897).
• btrfs: check rw_devices, not num_devices for balance (bsc#1178897).
• btrfs: do not delete mismatched root refs (bsc#1178962).
• btrfs: fix btrfs_calc_reclaim_metadata_size calculation (bsc#1178897).
• btrfs: fix force usage in inc_block_group_ro (bsc#1178897).
• btrfs: fix invalid removal of root ref (bsc#1178962).
• btrfs: fix reclaim counter leak of space_info objects (bsc#1178897).
• btrfs: fix reclaim_size counter leak after stealing from global reserve (bsc#1178897).
• btrfs: kill min_allocable_bytes in inc_block_group_ro (bsc#1178897).
• btrfs: rework arguments of btrfs_unlink_subvol (bsc#1178962).
• btrfs: split dev-replace locking helpers for read and write (bsc#1178897).
• can: af_can: prevent potential access of uninitialized member in canfd_rcv() (git-fixes).
• can: af_can: prevent potential access of uninitialized member in can_rcv() (git-fixes).
• can: can_create_echo_skb(): fix echo skb generation: always use skb_clone() (git-fixes).
• can: dev: __can_get_echo_skb(): fix real payload length return value for RTR frames (git-fixes).
• can: dev: can_get_echo_skb(): prevent call to kfree_skb() in hard IRQ context (git-fixes).
• can: dev: can_restart(): post buffer from the right context (git-fixes).
• can: gs_usb: fix endianess problem with candleLight firmware (git-fixes).
• can: m_can: fix nominal bitiming tseg2 min for version >= 3.1 (git-fixes).
• can: m_can:…

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

The following security bugs were fixed:

• CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c which could have allowed local users to gain privileges or cause a denial of service (bsc#1179141).
• CVE-2020-15437: Fixed a null pointer dereference which could have allowed local users to cause a denial of service(bsc#1179140).
• CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc#1178182).
• CVE-2020-27777: Restrict RTAS requests from userspace (bsc#1179107).
• CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886).
• CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel (bsc#1178589).
• CVE-2020-29371: Fixed uninitialized memory leaks to userspace (bsc#1179429).

The following non-security bugs were fixed:

• ACPI: GED: fix -Wformat (git-fixes).
• ALSA: ctl: fix error path at adding user-defined element set (git-fixes).
• ALSA: firewire: Clean up a locking issue in copy_resp_to_buf() (git-fixes).
• ALSA: mixart: Fix mutex deadlock (git-fixes).
• arm64: KVM: Fix system register enumeration (bsc#1174726).
• arm/arm64: KVM: Add PSCI version selection API (bsc#1174726).
• ASoC: qcom: lpass-platform: Fix memory leak (git-fixes).
• ath10k: Acquire tx_lock in tx error paths (git-fixes).
• batman-adv: set .owner to THIS_MODULE (git-fixes).
• Bluetooth: btusb: Fix and detect most of the Chinese Bluetooth controllers (git-fixes).
• Bluetooth: hci_bcm: fix freeing not-requested IRQ (git-fixes).
• bpf: Zero-fill re-used per-cpu map element (git-fixes).
• btrfs: account ticket size at add/delete time (bsc#1178897).
• btrfs: add helper to obtain number of devices with ongoing dev-replace (bsc#1178897).
• btrfs: check rw_devices, not num_devices for balance (bsc#1178897).
• btrfs: do not delete mismatched root refs (bsc#1178962).
• btrfs: fix btrfs_calc_reclaim_metadata_size calculation (bsc#1178897).
• btrfs: fix force usage in inc_block_group_ro (bsc#1178897).
• btrfs: fix invalid removal of root ref (bsc#1178962).
• btrfs: fix reclaim counter leak of space_info objects (bsc#1178897).
• btrfs: fix reclaim_size counter leak after stealing from global reserve (bsc#1178897).
• btrfs: kill min_allocable_bytes in inc_block_group_ro (bsc#1178897).
• btrfs: rework arguments of btrfs_unlink_subvol (bsc#1178962).
• btrfs: split dev-replace locking helpers for read and write (bsc#1178897).
• can: af_can: prevent potential access of uninitialized member in canfd_rcv() (git-fixes).
• can: af_can: prevent potential access of uninitialized member in can_rcv() (git-fixes).
• can: dev: can_restart(): post buffer from the right context (git-fixes).
• can: gs_usb: fix endianess problem with candleLight firmware (git-fixes).
• can: m_can: fix nominal bitiming tseg2 min for version >= 3.1 (git-fixes).
• can: m_can: m_can_handle_state_change(): fix state change (git-fixes).
• can: m_can: m_can_stop(): set device to software init mode before closing (git-fixes).
• can: mcba_usb: mcba_usb_start_xmit(): first fill skb, then pass to can_put_echo_skb() (git-fixes).
• can: peak_usb: fix potential integer overflow on shift of a int (git-fixes).
• ceph: add check_session_state() helper and make it global (bsc#1179259).
• ceph: check session state after bumping session->s_seq (bsc#1179259).
• ceph: fix race in concurrent __ceph_remove_cap invocations (bsc#1178635).
• cifs: Fix incomplete memory allocation on setxattr path (bsc#1179211).
• cifs: remove bogus debug code (bsc#1179427).
• cifs: Return the error from crypt_message when enc/dec key not found (bsc#1179426).
• Convert trailing spaces and periods in path components (bsc#1179424).
• docs: ABI: stable: remove a duplicated documentation (git-fixes).
• docs: ABI: sysfs-c2port: remove a…

The SUSE Linux Enterprise 15 SP2 kernel was updated to 3.12.31 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c which could have allowed local users to gain privileges or cause a denial of service (bsc#1179141).
• CVE-2020-15437: Fixed a null pointer dereference which could have allowed local users to cause a denial of service(bsc#1179140).
• CVE-2020-25668: Fixed a concurrency use-after-free in con_font_op (bsc#1178123).
• CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc#1178182).
• CVE-2020-25704: Fixed a leak in perf_event_parse_addr_filter() (bsc#1178393).
• CVE-2020-27777: Restrict RTAS requests from userspace (bsc#1179107)
• CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886).
• CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel (bsc#1178589).
• CVE-2020-29371: Fixed uninitialized memory leaks to userspace (bsc#1179429).
• CVE-2020-25705: Fixed an issue which could have allowed to quickly scan open UDP ports. This flaw allowed an off-path remote user to effectively bypassing source port UDP randomization (bsc#1175721).
• CVE-2020-28941: Fixed an issue where local attackers on systems with the speakup driver could cause a local denial of service attack (bsc#1178740).
• CVE-2020-4788: Fixed an issue with IBM Power9 processors could have allowed a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances (bsc#1177666).
• CVE-2020-29369: Fixed a race condition between certain expand functions (expand_downwards and expand_upwards) and page-table free operations from an munmap call, aka CID-246c320a8cfe (bnc#1173504 1179432).

The following non-security bugs were fixed:

• 9P: Cast to loff_t before multiplying (git-fixes).
• ACPI: button: Add DMI quirk for Medion Akoya E2228T (git-fixes).
• ACPICA: Add NHLT table signature (bsc#1176200).
• ACPI: dock: fix enum-conversion warning (git-fixes).
• ACPI / extlog: Check for RDMSR failure (git-fixes).
• ACPI: GED: fix -Wformat (git-fixes).
• ACPI: NFIT: Fix comparison to '-ENXIO' (git-fixes).
• ACPI: video: use ACPI backlight for HP 635 Notebook (git-fixes).
• Add bug reference to two hv_netvsc patches (bsc#1178853).
• ALSA: ctl: fix error path at adding user-defined element set (git-fixes).
• ALSA: firewire: Clean up a locking issue in copy_resp_to_buf() (git-fixes).
• ALSA: fix kernel-doc markups (git-fixes).
• ALSA: hda: fix jack detection with Realtek codecs when in D3 (git-fixes).
• ALSA: hda: prevent undefined shift in snd_hdac_ext_bus_get_link() (git-fixes).
• ALSA: hda/realtek: Add some Clove SSID in the ALC293(ALC1220) (git-fixes).
• ALSA: hda/realtek - Add supported for Lenovo ThinkPad Headset Button (git-fixes).
• ALSA: hda/realtek - Add supported mute Led for HP (git-fixes).
• ALSA: hda/realtek - Enable headphone for ASUS TM420 (git-fixes).
• ALSA: hda/realtek - Fixed HP headset Mic can't be detected (git-fixes).
• ALSA: hda/realtek - HP Headset Mic can't detect after boot (git-fixes).
• ALSA: hda: Reinstate runtime_allow() for all hda controllers (git-fixes).
• ALSA: mixart: Fix mutex deadlock (git-fixes).
• ALSA: usb-audio: Add delay quirk for all Logitech USB devices (git-fixes).
• ALSA: usb-audio: Add implicit feedback quirk for MODX (git-fixes).
• ALSA: usb-audio: Add implicit feedback quirk for Qu-16 (git-fixes).
• ALSA: usb-audio: Add implicit feedback quirk for Zoom UAC-2 (git-fixes).
• ALSA: usb-audio: add usb vendor id as DSD-capable for Khadas devices (git-fixes).
• arm64: bpf: Fix branch offset in JIT (git-fixes).
• arm64: dts: allwinner: a64: bananapi-m64: Enable RGMII RX/TX delay on PHY (git-fixes).
• arm64: dts: allwinner: a64: OrangePi Win: Fix ethernet node (git-fixes).
• arm64:…

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

The following security bugs were fixed:

• CVE-2018-20669: Fixed an improper check i915_gem_execbuffer2_ioctl in drivers/gpu/drm/i915/i915_gem_execbuffer.c (bsc#1122971).
• CVE-2019-20934: Fixed a use-after-free in show_numa_stats() because NUMA fault statistics were inappropriately freed, aka CID-16d51a590a8c (bsc#1179663).
• CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c which could have allowed local users to gain privileges or cause a denial of service (bsc#1179141).
• CVE-2020-15437: Fixed a null pointer dereference which could have allowed local users to cause a denial of service(bsc#1179140).
• CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc#1178182).
• CVE-2020-27777: Restrict RTAS requests from userspace (bsc#1179107)
• CVE-2020-27786: Fixed a use after free in kernel midi subsystem snd_rawmidi_kernel_read1() (bsc#1179601).
• CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886).
• CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095 (bsc#1178589).
• CVE-2020-29371: Fixed uninitialized memory leaks to userspace (bsc#1179429).
• CVE-2020-4788: Fixed an issue with IBM Power9 processors could have allowed a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances (bsc#1177666).

The following non-security bugs were fixed:

• ACPI: GED: fix -Wformat (git-fixes).
• ALSA: ctl: fix error path at adding user-defined element set (git-fixes).
• ALSA: firewire: Clean up a locking issue in copy_resp_to_buf() (git-fixes).
• ALSA: hda/realtek: Add mute LED quirk to yet another HP x360 model (git-fixes).
• ALSA: hda/realtek - Add new codec supported for ALC897 (git-fixes).
• ALSA: hda/realtek: Add some Clove SSID in the ALC293(ALC1220) (git-fixes).
• ALSA: hda/realtek: Enable headset of ASUS UX482EG & B9400CEA with ALC294 (git-fixes).
• ALSA: mixart: Fix mutex deadlock (git-fixes).
• ALSA: usb-audio: US16x08: fix value count for level meters (git-fixes).
• arm64: KVM: Fix system register enumeration (bsc#1174726).
• arm/arm64: KVM: Add PSCI version selection API (bsc#1174726).
• ASoC: qcom: lpass-platform: Fix memory leak (git-fixes).
• ath10k: Acquire tx_lock in tx error paths (git-fixes).
• Avoid a GCC warning about '/*' within a comment.
• batman-adv: set .owner to THIS_MODULE (git-fixes).
• Bluetooth: btusb: Fix and detect most of the Chinese Bluetooth controllers (git-fixes).
• Bluetooth: hci_bcm: fix freeing not-requested IRQ (git-fixes).
• bnxt_en: Fix race when modifying pause settings (bsc#1050242 ).
• bnxt_en: Protect bnxt_set_eee() and bnxt_set_pauseparam() with mutex (bsc#1050242).
• bpf: Zero-fill re-used per-cpu map element (git-fixes).
• btrfs: account ticket size at add/delete time (bsc#1178897).
• btrfs: add helper to obtain number of devices with ongoing dev-replace (bsc#1178897).
• btrfs: check rw_devices, not num_devices for balance (bsc#1178897).
• btrfs: do not delete mismatched root refs (bsc#1178962).
• btrfs: fix btrfs_calc_reclaim_metadata_size calculation (bsc#1178897).
• btrfs: fix force usage in inc_block_group_ro (bsc#1178897).
• btrfs: fix invalid removal of root ref (bsc#1178962).
• btrfs: fix reclaim counter leak of space_info objects (bsc#1178897).
• btrfs: fix reclaim_size counter leak after stealing from global reserve (bsc#1178897).
• btrfs: kill min_allocable_bytes in inc_block_group_ro (bsc#1178897).
• btrfs: qgroup: do not commit transaction when we already hold the handle (bsc#1178634).
• btrfs: rework arguments of btrfs_unlink_subvol (bsc#1178962).
• btrfs: split dev-replace locking helpers for read and write (bsc#1178897).
• can: af_can: prevent potential access of uninitialized…

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

The following security bugs were fixed:

• CVE-2018-20669: Fixed an improper check i915_gem_execbuffer2_ioctl in drivers/gpu/drm/i915/i915_gem_execbuffer.c (bsc#1122971).
• CVE-2019-20934: Fixed a use-after-free in show_numa_stats() because NUMA fault statistics were inappropriately freed, aka CID-16d51a590a8c (bsc#1179663).
• CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c which could have allowed local users to gain privileges or cause a denial of service (bsc#1179141).
• CVE-2020-15437: Fixed a null pointer dereference which could have allowed local users to cause a denial of service(bsc#1179140).
• CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc#1178182).
• CVE-2020-27777: Restrict RTAS requests from userspace (bsc#1179107)
• CVE-2020-27786: Fixed a use after free in kernel midi subsystem snd_rawmidi_kernel_read1() (bsc#1179601).
• CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886).
• CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095 (bsc#1178589).
• CVE-2020-29371: Fixed uninitialized memory leaks to userspace (bsc#1179429).
• CVE-2020-4788: Fixed an issue with IBM Power9 processors could have allowed a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances (bsc#1177666).

The following non-security bugs were fixed:

• ACPI: GED: fix -Wformat (git-fixes).
• ALSA: ctl: fix error path at adding user-defined element set (git-fixes).
• ALSA: firewire: Clean up a locking issue in copy_resp_to_buf() (git-fixes).
• ALSA: hda/realtek: Add mute LED quirk to yet another HP x360 model (git-fixes).
• ALSA: hda/realtek - Add new codec supported for ALC897 (git-fixes).
• ALSA: hda/realtek: Add some Clove SSID in the ALC293(ALC1220) (git-fixes).
• ALSA: hda/realtek: Enable headset of ASUS UX482EG & B9400CEA with ALC294 (git-fixes).
• ALSA: mixart: Fix mutex deadlock (git-fixes).
• ALSA: usb-audio: US16x08: fix value count for level meters (git-fixes).
• arm64: KVM: Fix system register enumeration (bsc#1174726).
• arm/arm64: KVM: Add PSCI version selection API (bsc#1174726).
• ASoC: qcom: lpass-platform: Fix memory leak (git-fixes).
• ath10k: Acquire tx_lock in tx error paths (git-fixes).
• Avoid a GCC warning about '/*' within a comment.
• batman-adv: set .owner to THIS_MODULE (git-fixes).
• Bluetooth: btusb: Fix and detect most of the Chinese Bluetooth controllers (git-fixes).
• Bluetooth: hci_bcm: fix freeing not-requested IRQ (git-fixes).
• bnxt_en: Fix race when modifying pause settings (bsc#1050242 ).
• bnxt_en: Protect bnxt_set_eee() and bnxt_set_pauseparam() with mutex (bsc#1050242).
• btmrvl: Fix firmware filename for sd8997 chipset (bsc#1172694).
• btrfs: account ticket size at add/delete time (bsc#1178897).
• btrfs: add helper to obtain number of devices with ongoing dev-replace (bsc#1178897).
• btrfs: check rw_devices, not num_devices for balance (bsc#1178897).
• btrfs: do not delete mismatched root refs (bsc#1178962).
• btrfs: fix btrfs_calc_reclaim_metadata_size calculation (bsc#1178897).
• btrfs: fix force usage in inc_block_group_ro (bsc#1178897).
• btrfs: fix invalid removal of root ref (bsc#1178962).
• btrfs: fix reclaim counter leak of space_info objects (bsc#1178897).
• btrfs: fix reclaim_size counter leak after stealing from global reserve (bsc#1178897).
• btrfs: kill min_allocable_bytes in inc_block_group_ro (bsc#1178897).
• btrfs: qgroup: do not commit transaction when we already hold the handle (bsc#1178634).
• btrfs: rework arguments of btrfs_unlink_subvol (bsc#1178962).
• btrfs: split dev-replace locking helpers for read and write (bsc#1178897).
• can: af_can: prevent potential access of…

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

The following security bugs were fixed:

• CVE-2021-3348: Fixed a use-after-free in nbd_add_socket() that could be triggered by local attackers (with access to the nbd device) via an I/O request (bnc#1181504).
• CVE-2021-3347: A use-after-free was discovered in the PI futexes during fault handling, allowing local users to execute code in the kernel (bnc#1181349).
• CVE-2020-27835: A use-after-free in the infiniband hfi1 driver was found, specifically in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system (bnc#1179878).
• CVE-2020-25211: Fixed a buffer overflow in ctnetlink_parse_tuple_filter() which could be triggered by a local attackers by injecting conntrack netlink configuration (bnc#1176395).
• CVE-2020-25639: Fixed a NULL pointer dereference via nouveau ioctl (bnc#1176846).
• CVE-2020-29569: Fixed a potential privilege escalation and information leaks related to the PV block backend, as used by Xen (bnc#1179509).
• CVE-2020-29568: Fixed a denial of service issue, related to processing watch events (bnc#1179508).
• CVE-2020-0444: Fixed a bad kfree due to a logic error in audit_data_to_entry (bnc#1180027).
• CVE-2020-0465: Fixed multiple missing bounds checks in hid-multitouch.c that could have led to local privilege escalation (bnc#1180029).
• CVE-2020-0466: Fixed a use-after-free due to a logic error in do_epoll_ctl and ep_loop_check_proc of eventpoll.c (bnc#1180031).
• CVE-2020-4788: Fixed an issue with IBM Power9 processors could have allowed a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances (bsc#1177666).
• CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c which could have allowed local users to gain privileges or cause a denial of service (bsc#1179141).
• CVE-2020-27068: Fixed an out-of-bounds read due to a missing bounds check in the nl80211_policy policy of nl80211.c (bnc#1180086).
• CVE-2020-27777: Fixed a privilege escalation in the Run-Time Abstraction Services (RTAS) interface, affecting guests running on top of PowerVM or KVM hypervisors (bnc#1179107).
• CVE-2020-27786: Fixed an out-of-bounds write in the MIDI implementation (bnc#1179601).
• CVE-2020-27825: Fixed a race in the trace_open and buffer resize calls (bsc#1179960).
• CVE-2020-29371: Fixed uninitialized memory leaks to userspace (bsc#1179429).
• CVE-2020-29660: Fixed a locking inconsistency in the tty subsystem that may have allowed a read-after-free attack against TIOCGSID (bnc#1179745).
• CVE-2020-29661: Fixed a locking issue in the tty subsystem that allowed a use-after-free attack against TIOCSPGRP (bsc#1179745).
• CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel (bsc#1178589).
• CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886).
• CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc#1178182).
• CVE-2020-15437: Fixed a null pointer dereference which could have allowed local users to cause a denial of service(bsc#1179140).
• CVE-2020-36158: Fixed a potential remote code execution in the Marvell mwifiex driver (bsc#1180559).
• CVE-2020-28374: Fixed a Linux SCSI target issue (bsc#1178372).
• CVE-2019-20934: Fixed a use-after-free in show_numa_stats() because NUMA fault statistics were inappropriately freed (bsc#1179663).

The following non-security bugs were fixed:

• blk-mq: improve heavily contended tag case (bsc#1178198).
• debugfs_lookup(): switch to lookup_one_len_unlocked() (bsc#1171979).
• epoll: Keep a reference on files added to the check list (bsc#1180031).
• fix regression in 'epoll: Keep a reference on files added to the check list' (bsc#1180031, git-fixes).
• futex: Do not enable IRQs…

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

The following security bugs were fixed:

• CVE-2021-3347: A use-after-free was discovered in the PI futexes during fault handling, allowing local users to execute code in the kernel (bnc#1181349).
• CVE-2020-29569: Fixed a potential privilege escalation and information leaks related to the PV block backend, as used by Xen (bnc#1179509).
• CVE-2020-29568: Fixed a denial of service issue, related to processing watch events (bnc#1179508).
• CVE-2020-25211: Fixed a flaw where a local attacker was able to inject conntrack netlink configuration that could cause a denial of service or trigger the use of incorrect protocol numbers in ctnetlink_parse_tuple_filter (bnc#1176395).
• CVE-2020-0444: Fixed a bad kfree due to a logic error in audit_data_to_entry (bnc#1180027).
• CVE-2020-0465: Fixed multiple missing bounds checks in hid-multitouch.c that could have led to local privilege escalation (bnc#1180029).
• CVE-2020-0466: Fixed a use-after-free due to a logic error in do_epoll_ctl and ep_loop_check_proc of eventpoll.c (bnc#1180031).
• CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c which could have allowed local users to gain privileges or cause a denial of service (bsc#1179141).
• CVE-2020-27068: Fixed an out-of-bounds read due to a missing bounds check in the nl80211_policy policy of nl80211.c (bnc#1180086).
• CVE-2020-27777: Fixed a privilege escalation in the Run-Time Abstraction Services (RTAS) interface, affecting guests running on top of PowerVM or KVM hypervisors (bnc#1179107).
• CVE-2020-27786: Fixed an out-of-bounds write in the MIDI implementation (bnc#1179601).
• CVE-2020-27825: Fixed a race in the trace_open and buffer resize calls (bsc#1179960).
• CVE-2020-29660: Fixed a locking inconsistency in the tty subsystem that may have allowed a read-after-free attack against TIOCGSID (bnc#1179745).
• CVE-2020-29661: Fixed a locking issue in the tty subsystem that allowed a use-after-free attack against TIOCSPGRP (bsc#1179745).
• CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel (bsc#1178589).
• CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886).
• CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc#1178182).
• CVE-2020-25285: A race condition between hugetlb sysctl handlers in mm/hugetlb.c could be used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified other impact (bnc#1176485 ).
• CVE-2020-15437: Fixed a null pointer dereference which could have allowed local users to cause a denial of service (bsc#1179140).
• CVE-2020-36158: Fixed a potential remote code execution in the Marvell mwifiex driver (bsc#1180559).
• CVE-2020-11668: Fixed the mishandling of invalid descriptors in the Xirlink camera USB driver (bnc#1168952).
• CVE-2020-25668: Fixed a use-after-free in con_font_op() (bsc#1178123).
• CVE-2020-27673: Fixed an issue where rogue guests could have caused denial of service of Dom0 via high frequency events (XSA-332 bsc#1177411)
• CVE-2019-20934: Fixed a use-after-free in show_numa_stats() because NUMA fault statistics were inappropriately freed (bsc#1179663).
• CVE-2019-19063: Fixed two memory leaks in the rtl_usb_probe() which could eventually have allowed attackers to cause a denial of service (memory consumption) (bnc#1157298 ).
• CVE-2019-6133: Fixed an issue where the 'start time' protection mechanism could have been bypassed and therefore authorization decisions are improperly cached (bsc#1128172).

The following non-security bugs were fixed:

• HID: Fix slab-out-of-bounds read in hid_field_extract (bsc#1180052).
• epoll: Keep a reference on files added to the check list (bsc#1180031).
• fix regression in 'epoll: Keep a reference…

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

The following security bugs were fixed:

• CVE-2021-3348: Fixed a use-after-free in nbd_add_socket that could be triggered by local attackers (with access to the nbd device) via an I/O request at a certain point during device setup (bnc#1181504).
• CVE-2021-3347: A use-after-free was discovered in the PI futexes during fault handling, allowing local users to execute code in the kernel (bnc#1181349).
• CVE-2020-25211: Fixed a buffer overflow in ctnetlink_parse_tuple_filter() which could be triggered by a local attackers by injecting conntrack netlink configuration (bnc#1176395).
• CVE-2020-27835: A use-after-free in the infiniband hfi1 driver was found, specifically in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system (bnc#1179878).
• CVE-2020-29569: Fixed a potential privilege escalation and information leaks related to the PV block backend, as used by Xen (bnc#1179509).
• CVE-2020-29568: Fixed a denial of service issue, related to processing watch events (bnc#1179508).
• CVE-2020-0444: Fixed a bad kfree due to a logic error in audit_data_to_entry (bnc#1180027).
• CVE-2020-0465: Fixed multiple missing bounds checks in hid-multitouch.c that could have led to local privilege escalation (bnc#1180029).
• CVE-2020-0466: Fixed a use-after-free due to a logic error in do_epoll_ctl and ep_loop_check_proc of eventpoll.c (bnc#1180031).
• CVE-2020-4788: Fixed an issue with IBM Power9 processors could have allowed a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances (bsc#1177666).
• CVE-2020-10781: A flaw was found in the ZRAM kernel module, where a user with a local account and the ability to read the /sys/class/zram-control/hot_add file can create ZRAM device nodes in the /dev/ directory. This read allocates kernel memory and is not accounted for a user that triggers the creation of that ZRAM device. With this vulnerability, continually reading the device may consume a large amount of system memory and cause the Out-of-Memory (OOM) killer to activate and terminate random userspace processes, possibly making the system inoperable (bnc#1173074).
• CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c which could have allowed local users to gain privileges or cause a denial of service (bsc#1179141).
• CVE-2020-27068: Fixed an out-of-bounds read due to a missing bounds check in the nl80211_policy policy of nl80211.c (bnc#1180086).
• CVE-2020-25639: Fixed a NULL pointer dereference via nouveau ioctl (bnc#1176846).
• CVE-2020-27777: Fixed a privilege escalation in the Run-Time Abstraction Services (RTAS) interface, affecting guests running on top of PowerVM or KVM hypervisors (bnc#1179107).
• CVE-2020-27786: Fixed an out-of-bounds write in the MIDI implementation (bnc#1179601).
• CVE-2020-27825: Fixed a race in the trace_open and buffer resize calls (bsc#1179960).
• CVE-2020-29660: Fixed a locking inconsistency in the tty subsystem that may have allowed a read-after-free attack against TIOCGSID (bnc#1179745).
• CVE-2020-29661: Fixed a locking issue in the tty subsystem that allowed a use-after-free attack against TIOCSPGRP (bsc#1179745).
• CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel (bsc#1178589).
• CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886).
• CVE-2020-28374: Fixed a Linux SCSI target issue (bsc#1178372).
• CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc#1178182).
• CVE-2020-29371: An issue was discovered in romfs_dev_read in fs/romfs/storage.c where uninitialized memory leaks to userspace (bnc#1179429).
• CVE-2020-15437: Fixed a null pointer dereference which could have allowed local…

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

The following security bugs were fixed:

• CVE-2021-3347: A use-after-free was discovered in the PI futexes during fault handling, allowing local users to execute code in the kernel (bnc#1181349).
• CVE-2020-25211: Fixed a buffer overflow in ctnetlink_parse_tuple_filter() which could be triggered by a local attackers by injecting conntrack netlink configuration (bnc#1176395).
• CVE-2020-27835: A use-after-free in the infiniband hfi1 driver was found, specifically in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system (bnc#1179878).
• CVE-2020-29569: Fixed a potential privilege escalation and information leaks related to the PV block backend, as used by Xen (bnc#1179509).
• CVE-2020-29568: Fixed a denial of service issue, related to processing watch events (bnc#1179508).
• CVE-2020-0444: Fixed a bad kfree due to a logic error in audit_data_to_entry (bnc#1180027).
• CVE-2020-0465: Fixed multiple missing bounds checks in hid-multitouch.c that could have led to local privilege escalation (bnc#1180029).
• CVE-2020-0466: Fixed a use-after-free due to a logic error in do_epoll_ctl and ep_loop_check_proc of eventpoll.c (bnc#1180031).
• CVE-2020-4788: Fixed an issue with IBM Power9 processors could have allowed a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances (bsc#1177666).
• CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c which could have allowed local users to gain privileges or cause a denial of service (bsc#1179141).
• CVE-2020-27068: Fixed an out-of-bounds read due to a missing bounds check in the nl80211_policy policy of nl80211.c (bnc#1180086).
• CVE-2020-27777: Fixed a privilege escalation in the Run-Time Abstraction Services (RTAS) interface, affecting guests running on top of PowerVM or KVM hypervisors (bnc#1179107).
• CVE-2020-27786: Fixed an out-of-bounds write in the MIDI implementation (bnc#1179601).
• CVE-2020-27825: Fixed a race in the trace_open and buffer resize calls (bsc#1179960).
• CVE-2020-29660: Fixed a locking inconsistency in the tty subsystem that may have allowed a read-after-free attack against TIOCGSID (bnc#1179745).
• CVE-2020-29661: Fixed a locking issue in the tty subsystem that allowed a use-after-free attack against TIOCSPGRP (bsc#1179745).
• CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel (bsc#1178589).
• CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886).
• CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc#1178182).
• CVE-2020-15437: Fixed a null pointer dereference which could have allowed local users to cause a denial of service(bsc#1179140).
• CVE-2020-36158: Fixed a potential remote code execution in the Marvell mwifiex driver (bsc#1180559).
• CVE-2020-11668: Fixed the mishandling of invalid descriptors in the Xirlink camera USB driver (bnc#1168952).
• CVE-2020-25285: Fixed a race condition between hugetlb sysctl handlers in mm/hugetlb.c (bnc#1176485).
• CVE-2019-20934: Fixed a use-after-free in show_numa_stats() because NUMA fault statistics were inappropriately freed (bsc#1179663).
• CVE-2018-10902: It was found that the raw midi kernel driver did not protect against concurrent access which leads to a double realloc (double free) in snd_rawmidi_input_params() and snd_rawmidi_output_status() which are part of snd_rawmidi_ioctl() handler in rawmidi.c file. A malicious local attacker could possibly use this for privilege escalation (bnc#1105322).

The following non-security bugs were fixed:

• cifs: do not revalidate mountpoint dentries (bsc#1177440).
• cifs: fix potential use-after-free in cifs_echo_request() (bsc#1139944).
• cifs: ignore…

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

The following security bugs were fixed:

• CVE-2021-3347: A use-after-free was discovered in the PI futexes during fault handling, allowing local users to execute code in the kernel (bnc#1181349).
• CVE-2020-0465: Fixed multiple missing bounds checks in hid-multitouch.c that could have led to local privilege escalation (bnc#1180029).
• CVE-2020-25211: Fixed a flaw where a local attacker was able to inject conntrack netlink configuration that could cause a denial of service or trigger the use of incorrect protocol numbers in ctnetlink_parse_tuple_filter (bnc#1176395).
• CVE-2020-14390: Fixed an out-of-bounds memory write leading to memory corruption or a denial of service when changing screen size (bnc#1176235).
• CVE-2020-25284: Fixed an incomplete permission checking for access to rbd devices, which could have been leveraged by local attackers to map or unmap rbd block devices (bsc#1176482).
• CVE-2020-15436: Fixed a use after free vulnerability in fs/block_dev.c which could have allowed local users to gain privileges or cause a denial of service (bsc#1179141).
• CVE-2020-14331: Fixed a missing check in vgacon scrollback handling (bsc#1174205).
• CVE-2020-14353: Fixed an issue where keys - for keyctl prevent creating a different user's keyrings (bsc#1174993).
• CVE-2020-14381: Fixed requeue paths such that filp was valid when dropping the references (bsc#1176011).
• CVE-2020-27068: Fixed an out-of-bounds read due to a missing bounds check in the nl80211_policy policy of nl80211.c (bnc#1180086).
• CVE-2020-27777: Fixed a privilege escalation in the Run-Time Abstraction Services (RTAS) interface, affecting guests running on top of PowerVM or KVM hypervisors (bnc#1179107).
• CVE-2020-27786: Fixed an out-of-bounds write in the MIDI implementation (bnc#1179601).
• CVE-2020-29660: Fixed a locking inconsistency in the tty subsystem that may have allowed a read-after-free attack against TIOCGSID (bnc#1179745).
• CVE-2020-29661: Fixed a locking issue in the tty subsystem that allowed a use-after-free attack against TIOCSPGRP (bsc#1179745).
• CVE-2020-28974: Fixed a slab-out-of-bounds read in fbcon which could have been used by local attackers to read privileged information or potentially crash the kernel (bsc#1178589).
• CVE-2020-28915: Fixed a buffer over-read in the fbcon code which could have been used by local attackers to read kernel memory (bsc#1178886).
• CVE-2020-25669: Fixed a use-after-free read in sunkbd_reinit() (bsc#1178182).
• CVE-2020-25285: A race condition between hugetlb sysctl handlers in mm/hugetlb.c could be used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified other impact (bnc#1176485 ).
• CVE-2020-15437: Fixed a null pointer dereference which could have allowed local users to cause a denial of service (bsc#1179140).
• CVE-2020-36158: Fixed a potential remote code execution in the Marvell mwifiex driver (bsc#1180559).
• CVE-2020-11668: Fixed the mishandling of invalid descriptors in the Xirlink camera USB driver (bnc#1168952).
• CVE-2020-25668: Fixed a use-after-free in con_font_op() (bsc#1178123).
• CVE-2020-4788: Fixed an issue with IBM Power9 processors could have allowed a local user to obtain sensitive information from the data in the L1 cache under extenuating circumstances (bsc#1177666).
• CVE-2020-0431: Fixed an out of bounds write due to a missing bounds check (bsc#1176722).
• CVE-2020-0404: Fixed a linked list corruption due to an unusual root cause (bsc#1176423).
• CVE-2019-20934: Fixed a use-after-free in show_numa_stats() because NUMA fault statistics were inappropriately freed (bsc#1179663).
• CVE-2020-25656: Fixed a concurrency use-after-free in vt_do_kdgkb_ioctl (bnc#1177766).
• CVE-2020-25643: Fixed a memory corruption and a read overflow which could have caused by improper input validation in the ppp_cp_parse_cr function (bsc#1177206). -…

It was discovered that the console keyboard driver in the Linux kernel contained a race condition. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2020-25656)

Minh Yuan discovered that the tty driver in the Linux kernel contained race conditions when handling fonts. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2020-25668)

Kiyin (尹亮) discovered that the perf subsystem in the Linux kernel did not properly deallocate memory in some situations. A privileged attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2020-25704)

Jinoh Kang discovered that the Xen event channel infrastructure in the Linux kernel contained a race condition. An attacker in guest could possibly use this to cause a denial of service (dom0 crash). (CVE-2020-27675)

Daniel Axtens discovered that PowerPC RTAS implementation in the Linux kernel did not properly restrict memory accesses in some situations. A privileged local attacker could use this to arbitrarily modify kernel memory, potentially bypassing kernel lockdown restrictions. (CVE-2020-27777)

Minh Yuan discovered that the framebuffer console driver in the Linux kernel did not properly handle fonts in some conditions. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2020-28974)

It was discovered that debugfs in the Linux kernel as used by blktrace contained a use-after-free in some situations. A privileged local attacker could possibly use this to cause a denial of service (system crash). (CVE-2019-19770)

It was discovered that a race condition existed in the binder IPC 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-2020-0423)

Daniele Antonioli, Nils Ole Tippenhauer, and Kasper Rasmussen discovered that legacy pairing and secure-connections pairing authentication in the Bluetooth protocol could allow an unauthenticated user to complete authentication without pairing credentials via adjacent access. A physically proximate attacker could use this to impersonate a previously paired Bluetooth device. (CVE-2020-10135)

It was discovered that the console keyboard driver in the Linux kernel contained a race condition. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2020-25656)

Minh Yuan discovered that the tty driver in the Linux kernel contained race conditions when handling fonts. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2020-25668)

Keyu Man discovered that the ICMP global rate limiter in the Linux kernel could be used to assist in scanning open UDP ports. A remote attacker could use to facilitate attacks on UDP based services that depend on source port randomization. (CVE-2020-25705)

Jinoh Kang discovered that the Xen event channel infrastructure in the Linux kernel contained a race condition. An attacker in guest could possibly use this to cause a denial of service (dom0 crash). (CVE-2020-27675)

Daniel Axtens discovered that PowerPC RTAS implementation in the Linux kernel did not properly restrict memory accesses in some situations. A privileged local attacker could use this to arbitrarily modify kernel memory, potentially bypassing kernel lockdown restrictions. (CVE-2020-27777)

Minh Yuan discovered that the framebuffer console driver in the Linux kernel did not properly handle fonts in some conditions. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2020-28974)

Ryan Hall discovered that the Intel 700 Series Ethernet Controllers driver in the Linux kernel did not properly deallocate memory in some conditions. A local attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2019-0148)

It was discovered that the console keyboard driver in the Linux kernel contained a race condition. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2020-25656)

Minh Yuan discovered that the tty driver in the Linux kernel contained race conditions when handling fonts. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2020-25668)

Jinoh Kang discovered that the Xen event channel infrastructure in the Linux kernel contained a race condition. An attacker in guest could possibly use this to cause a denial of service (dom0 crash). (CVE-2020-27675)

Minh Yuan discovered that the framebuffer console driver in the Linux kernel did not properly handle fonts in some conditions. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2020-28974)

It was discovered that Power 9 processors could be coerced to expose information from the L1 cache in certain situations. A local attacker could use this to expose sensitive information. (CVE-2020-4788)

Minh Yuan discovered that the framebuffer console driver in the Linux kernel did not properly handle fonts in some conditions. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory).

It was discovered that the console keyboard driver in the Linux kernel contained a race condition. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2020-25656)

Minh Yuan discovered that the tty driver in the Linux kernel contained race conditions when handling fonts. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2020-25668)

Bodong Zhao discovered a use-after-free in the Sun keyboard driver implementation in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2020-25669)

Kiyin (尹亮) discovered that the perf subsystem in the Linux kernel did not properly deallocate memory in some situations. A privileged attacker could use this to cause a denial of service (kernel memory exhaustion). (CVE-2020-25704)

Julien Grall discovered that the Xen dom0 event handler in the Linux kernel did not properly limit the number of events queued. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2020-27673)

Jinoh Kang discovered that the Xen event channel infrastructure in the Linux kernel contained a race condition. An attacker in guest could possibly use this to cause a denial of service (dom0 crash). (CVE-2020-27675)

Daniel Axtens discovered that PowerPC RTAS implementation in the Linux kernel did not properly restrict memory accesses in some situations. A privileged local attacker could use this to arbitrarily modify kernel memory, potentially bypassing kernel lockdown restrictions. (CVE-2020-27777)

It was discovered that the jfs file system implementation in the Linux kernel contained an out-of-bounds read vulnerability. A local attacker could use this to possibly cause a denial of service (system crash). (CVE-2020-27815)

Shisong Qin and Bodong Zhao discovered that Speakup screen reader driver in the Linux kernel did not correctly handle setting line discipline in some situations. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-27830, CVE-2020-28941)

It was discovered that a use-after-free vulnerability existed in the infiniband hfi1 device driver in the Linux kernel. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2020-27835)

It was discovered that an information leak existed in the syscall implementation in the Linux kernel on 32 bit systems. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2020-28588)

Minh Yuan discovered that the framebuffer console driver in the Linux kernel did not properly handle fonts in some conditions. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2020-28974)

Michael Kurth and Pawel Wieczorkiewicz discovered that the Xen event processing backend in the Linux kernel did not properly limit the number of events queued. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2020-29568)

Olivier Benjamin and Pawel Wieczorkiewicz discovered a race condition the Xen paravirt block backend in the Linux kernel, leading to a use-after-free vulnerability. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2020-29569)

Jann Horn discovered that the tty subsystem of the Linux kernel did not use consistent locking in some situations, leading to a read-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). (CVE-2020-29660)

Jann Horn discovered a race condition in the tty subsystem of the Linux kernel in the locking for the TIOCSPGRP ioctl(), 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-2020-29661)

It was discovered that a…