Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: smb3: Fixed the potential deadlock due to lock ordering in the cifssyncmidresult function. Coverity identified that the cifssyncmidresult function could lead to a deadlock. “Thread deadlock ORDERREVERSAL lockorder: Calling spinlo...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net/ena: Fixed an issue where a lock was not acquired when updating devlink parameters. A assert lock warning was also fixed when calling devlparamdriverinitvalueset in ena. WARNING: net/devlink/core.c:261 at...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: “hungtask”: fixed warnings caused by unaligned lock pointers. The blocker tracking mechanism assumes that lock pointers are at least 4-byte aligned, so that their lower bits can be used for type encoding. However, as reported by...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: net: hibmcge: fixed the RTNL deadlock issue Currently, the hibmcge netdev acquires the RTNL lock in pcierrorhandlers.resetprepare and releases it in pcierrorhandlers.resetdone. However, in the PCI framework: pciresetbus -...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Wifi: ath12k: Handle lock during peerid find The ath12kpeerfindbyid function requires that the caller holds the ab-baselock. Currently, the WBM error path does not hold the lock, and calling that function leads to the following...

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

A flaw was discovered in the Linux Kernel’s RDS Reliable Datagram Sockets protocol. The rdsrmzerocopycallback function uses listentry on the head of a list, resulting in a type confusion. A local user can trigger this with the rdsmessageput function. This type confusion causes the struct...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/tests: shmem: Holding the reservation lock around madvise Acquiring and releasing the GEM object’s reservation lock during calls to the object’s madvide operation. The tests use drmgemshmemmadviselocked, which caused errors...

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

In the Linux kernel, the following vulnerabilities have been resolved: netlink: fixed a potential deadlock in netlinkseterr syzbot reported a possible deadlock in netlinkseterr 1 A similar issue was fixed in commit 1d482e666b8e “netlink: disabling IRQs for netlinklocktable” in netlinklocktable Th...

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

In the Linux kernel, the following vulnerability has been resolved: Binder: Fix for use-after-free in shinker’s callback The mmap read lock is used during shinker’s callback, which means that using the alloc-vma pointer is not safe, as it could lead to a race condition with munmap. As of commit...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: SELinux: The use of both GFPKERNEL and GFPATOMIC in convertcontext was enabled. The following warning was triggered in a hardware environment: SELinux: Converting 162 SID table entries... BUG: The sleeping function was called...

Astra Linux – Vulnerability in Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fixed the potential issue of using “glock” after a file system unmount. When a DLM lockspace is released and there are still locks in that lockspace, the DLM will automatically unlock those locks. Commit fb6791d100d1b...

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

In the Linux kernel, the following vulnerability has been resolved: ext4: Avoid allocating blocks from a corrupted group in ext4mbfindbygoal. The logic for checking whether the block bitmap of the group is corrupted is now placed under the protection of the group lock, thereby avoiding the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ethtool: Do not perform operations on net devices that are not yet registered. There is a short period between when a net device starts to be unregistered and when it is actually removed from the list of available devices. During...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: net/mlx5: Fixed a deadlock between the devlink lock and esw-wq. esw-workqueue executes eswfunctionschangedeventhandler - eswvfschangedeventhandler acquires the devlink lock. .eswitchmodeset acquires the devlink lock in...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: x86: Shadow stacks – proper error handling for mmap lock Kim Young-min reported that shstkpopsigframe does not check for errors from mmapreadlockkillable. This is a silly oversight. It was also shown that we have not marked...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: mctp: route: hold key-lock in mctpflowprepareoutput The mctpflowprepareoutput function checks key-dev and may call mctpdevsetkey. However, it does not hold key-lock during this process. Both mctpdevsetkey and mctpdevreleasekey...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: Fixed a deadlock in l2capconndel. The l2capconndel function calls canceldelayedworksync for both infotimer and idaddrtimer while holding conn-lock. However, the functions l2capinfotimeout and...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: spi: Fixed a use-after-free of the addlock mutex Commit 6098475d4cb4 “spi: Fixed a deadlock when adding SPI controllers on SPI buses” introduced a per-controller mutex. However, the mutexunlock call for that lock occurs after the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: rcu-tasks: Avoid using prinfo with a spin lock in cblistinitgeneric. prinfo is called with the rtp-cbsgbllock spin lock locked. Since prinfo calls printk, which may sleep, this will result in a bug like the following: 0.206455...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fixed the issue where the timer for starting a call race against the destruction of the call occurred. The rxrpccall structure contains a timer used to handle various timed events related to a call. This timer can be...