Astra Linux – Vulnerabilities in Linux, Linux-5.15, Linux-5.10, Linux-6.1

In the Linux kernel, the following vulnerabilities have been resolved: rxrpc: DATA/RESPONSE packets are also unshared when paged fragments are present. The DATA-packet handler in rxrpcinputcallevent and the RESPONSE handler in rxrpcverifyresponse copy the skb into a linear sequence before calling...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerabilities have been resolved: asixmdioread: Fix for uninit-value in asixmdioread. asixreadcmd may read less than sizeofsmsr bytes, and in this case, smsr will be uninitialized. Bug reports: BUG: KMSAN: uninit-value in asixcheckhostenable...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: erofs: Fix inconsistent per-file compression format EROFS can select compression algorithms on a per-file basis. Each per-file compression algorithm needs to be marked in the on-disk superblock for initialization. However,...

Astra Linux – Vulnerability in Linux, Linux 5.10

An improper update of the reference count vulnerability in the net/sched component of the Linux kernel allows a local attacker to escalate privileges to root. This issue affects Linux Kernel versions prior to 5.18, as well as version 4.14 and later versions...

Astra Linux – Vulnerability in Linux 5.10

A out-of-bounds memory write flaw was discovered in the Linux kernel’s watchqueue event notification subsystem. This flaw can overwrite parts of the kernel state, potentially allowing a local user to gain privileged access or cause a denial of service on the system...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

A memory leak flaw, along with potential division by zero and integer overflow issues, have been detected in the Linux kernel’s V4L2 and vivid test code functionality. This issue occurs when a user triggers ioctls, such as the VIDIOCSDVTIMINGS ioctl. This could allow a local user to crash the...

Astra Linux – Vulnerability in Linux

An integer overflow or wrap-around vulnerability in the iouring module of the Linux kernel allows a local attacker to cause memory corruption and escalate privileges to root. This issue affects Linux Kernel versions prior to 5.4.189, as well as version 5.4.24 and later versions...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: bpf: Disabling preemption in bpfperfeventoutput The nesting protection in bpfperfeventoutput relies on disabled preemption, which is guaranteed for kprobes and tracepoints. However, bpfperfeventoutput can also be called from the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Netwerk: Ethernet: mtkethsoc: A possible NULL pointer dereferencing has been fixed in the mtkhwlrogetfdirall function. The rulelocs variable is allocated in the ethtoolgetrxnfc function, and its size is determined by rulecnt from...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: serial: 8250bcm7271: The leak in brcmuartprobe has been fixed. Matching reports: drivers/tty/serial/8250/8250bcm7271.c:1120: brcmuartprobe warning: “‘baudmuxclk’ from clkprepareenable was not released” lines: 1032. The issue has...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: Fixed a use-after-free caused by l2capreassemblesdu. Fixed a race condition between the following two processes that run parallelly: 1. l2capreassemblesdu - chan-ops-recv l2capsockrecvcb - sockqueuercvskb. 2...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: pNFS: Fixed an issue where uninitialized pointers were dereferenced. The error occurs during the third attempt to encode extents. When the function exttreepreparecommit reallocates a larger buffer to retry encoding extents, th...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: In the fbdev subsystem, within the vt8623fb function, there is a issue where the value of screensize is calculated based on user input. If an improper value is provided by the user, the value of screensize may be larger than...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mtd: maps: The refcount leak in offlashprobeversatile has been fixed. The function offindmatchingnodeandmatch returns a node pointer with a refcount incremented. We should use ofnodeput on this pointer when it is no longer needed...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netsched: hfsc: Address reentrant enqueue adding class to eltree twice Savino says: “We are writing to report that this recent patch 141d34391abbb315d68556b7c67ad97885407547 1 can be bypassed, and a UAF can still occur when HFSC ...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: sched: clsu32: Undo tcfbindfilter if u32replacehwknode When u32replacehwknode fails, we need to undo the tcf BindFilter operation performed at u32setparms...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: net: dsa: ocelot: The function dsatag8021qunregister is called under rtnllock when removing a driver. When the currently used tagging protocol is “ocelot-8021q”, and we unbind the driver, we encounter this error: bash $ echo...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: schhtb: Made htbdeactivate idempotent. Alan reported a NULL pointer dereference in htbnextrbnode after we made htbqlennotify idempotent. It turns out that in the following case, some regressions were introduced: htbdequeuetree...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: Prevention of division by zero The user can set any speed value. If the speed is greater than UINTMAX/8, a division by zero is possible. Found by the Linux Verification Center linuxtesting.org with SVACE...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: do not free the NULL coalescing rule. If parsing fails, we can dereference a NULL pointer here...