Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: pinmux: The race condition that caused muxowner to become NULL with an active muxusecount has been fixed. The commit 5a3e85c3c397 “pinmux: Use sequential access to access desc-pinmux data“” attempted to address this issue by...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: sched/ext: Fixed invalid task state transitions during class switching. When enabling the schedext scheduler, it is possible to trigger invalid task state transitions, resulting in warnings like the following which can be easily...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: Input: ims-pcu – check the record size in imspcuflashfirmware. The “len” variable comes from the firmware, and we generally don’t trust the firmware. However, it’s always better to double-check. If the “len” is too large, it coul...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: NFSv4: A deadlock occurs when recovering state on a file that has been renamed. If a file is renamed and scheduled for deletion upon closing, a server reboot may trigger an open reclaim operation. This can lead to a race conditio...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: drm/xe/vf: Do not attempt to trigger a full GT reset if there is a VF involved. VFs do not have access to the GDRST0x941c register, which is used by the driver to reset the GT. Attempt to trigger a reset using debugfs: bash $ cat...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: rtc: tps6594: Fixed integer overflow on 32-bit systems The issue arises from the multiplication in tps6594rtcsetoffset. c tmp = offset TICKSPERHOUR; The tmp variable is of type s64, but offset is of type long and lies in the rang...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: s390/ap: Fix crash in AP internal function modifybitmap A system crash like this Failing address: 200000cb7df6f000 TEID: 200000cb7df6f403 Fault in home space mode while using kernel ASCE. AS:00000002d71bc007 R3:00000003fe5b8007...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ila: blocking BH in ilaoutput As explained in commit 1378817486d6 “tipc: blocking BH before using dstcache”, the net/core/dstcache.c helper functions need to be called with blocking BH disabled. ilaoutput is called from...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent possible NULL deref in fib6nhinit syzbot reminds us that in6devget can return NULL. fib6nhinit ip6validategw &idev ip6routechecknh idev idev = in6devgetdev; // can be NULL Oops: general protection fault, probably fo...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: ALSA: Timer – Setting a lower limit on the start tick time Currently, the ALSA timer does not have a lower limit for the start tick time. It allows a very small size, such as 1 tick with a 1ns resolution for the hrtimer. Such a...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: s390/sclp: Fixed the issue where sclpinit fails and does not clean up properly. If sclpinit fails, it only partially cleans up resources. If there are multiple failed calls to sclpinit, sclpstatechangeevent will be added multiple...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: dm cache: Fixed potential out-of-bounds access during the first resume. Out-of-bounds access occurs when the fast device is unexpectedly expanded before the first resume of the cache table. This happens because expanding the fast...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: ASoC: meson: axg-card: fixed “use-after-free” issue The buffer “card-dailink” is reallocated in “mesoncardreallocatelinks”. Therefore, the initialization of the “pad” pointer should be moved after this function, when the memor...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net/sched: Fixed a UAF issue when resolving a clash. KASAN reports the following UAF issues: - BUG: KASAN: A slab-use-after-free issue in tcfctflowtableprocessconn+0x12b/0x380 actct. A size 1 read at address ffff888c07603600 w...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: security/keys: Fixed an out-of-bounds read in keytaskpermission. KASAN reported an out-of-bounds read: - BUG: KASAN: Out-of-bounds read in kuidval, include/linux/uidgid.h: Line 36 - BUG: KASAN: Out-of-bounds read in uideq,...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: BPF: Fixed an issue where reservations were advanced beyond their limit in the ringbuf structure. The BPF ring buffer is internally implemented as a circular buffer of a power-of-2 size, with two logical and ever-increasing...

Astra Linux - уязвимость в linux-5.10

An out-of-bounds memory access flaw was found in the iouring SQ/CQ rings functionality in the Linux kernel. This issue could allow a local user to crash the system...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix double free during GPU reset on DC streams Why The issue only occurs during the GPU reset code path. We first backup the current state prior to commiting 0 streams internally from DM to DC. This state backup...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix use-after-free during gpu recovery Why 754.862560 refcountt: underflow; use-after-free. 754.862898 Call Trace: 754.862903 754.862913 amdgpujobfreecb+0xc2/0xe1 amdgpu 754.863543 drmschedmain.cold+0x34/0x39 amdsched...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: mm/vma: add giveuponoom option on modify/merge, use in uffd release Currently, if a VMA merge fails due to an OOM condition arising on commit merge or a failure to duplicate anonvma's, we report this so the caller can handle it...