Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: fs/fcntl: Fixed the SOFTIRQ-safe lock order in fasync signaling. A deadlock that occurs due to a SOFTIRQ-safe to SOFTIRQ-unsafe lock order can occur in sendsigio and sendsigurg, when a process group receives a signal. When...

SUSE CVE-2026-52946

In the Linux kernel, the following vulnerability has been resolved: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling A SOFTIRQ-safe to SOFTIRQ-unsafe lock order deadlock can occur in sendsigio and sendsigurg when a process group receives a signal. When FASYNC is configured for a proces...

EUVD-2026-38814

In the Linux kernel, the following vulnerability has been resolved: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling A SOFTIRQ-safe to SOFTIRQ-unsafe lock order deadlock can occur in sendsigio and sendsigurg when a process group receives a signal. When FASYNC is configured for a proces...

AZL-90684 CVE-2026-52946 affecting package kernel for versions less than 6.6.143.1-1

In the Linux kernel, the following vulnerability has been resolved: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling A SOFTIRQ-safe to SOFTIRQ-unsafe lock order deadlock can occur in sendsigio and sendsigurg when a process group receives a signal. When FASYNC is configured for a proces...

CVE-2026-52946

In the Linux kernel, the following vulnerability has been resolved: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling A SOFTIRQ-safe to SOFTIRQ-unsafe lock order deadlock can occur in sendsigio and sendsigurg when a process group receives a signal. When FASYNC is configured for a proces...

CVE-2026-52946

In the Linux kernel, the following vulnerability has been resolved: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling A SOFTIRQ-safe to SOFTIRQ-unsafe lock order deadlock can occur in sendsigio and sendsigurg when a process group receives a signal. When FASYNC is configured for a proces...

CVE-2026-52946 fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling

In the Linux kernel, the following vulnerability has been resolved: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling A SOFTIRQ-safe to SOFTIRQ-unsafe lock order deadlock can occur in sendsigio and sendsigurg when a process group receives a signal. When FASYNC is configured for a proces...

CVE-2026-52946 fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling

In the Linux kernel, the following vulnerability has been resolved: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling A SOFTIRQ-safe to SOFTIRQ-unsafe lock order deadlock can occur in sendsigio and sendsigurg when a process group receives a signal. When FASYNC is configured for a proces...

CVE-2026-52946

In the Linux kernel, the following vulnerability has been resolved: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling A SOFTIRQ-safe to SOFTIRQ-unsafe lock order deadlock can occur in sendsigio and sendsigurg when a process group receives a signal. When FASYNC is configured for a proces...

CVE-2026-52946 fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling

In the Linux kernel, the following vulnerability has been resolved: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling A SOFTIRQ-safe to SOFTIRQ-unsafe lock order deadlock can occur in sendsigio and sendsigurg when a process group receives a signal. When FASYNC is configured for a proces...

CVE-2026-52946

Summary of CVE-2026-52946 (Linux kernel) Root cause: A SOFTIRQ-unsafe lock order deadlock occurs in fasync signaling for process groups when signals are delivered. Specifically, send_sigio() and send_sigurg() traverse the task list under read_lock(&tasklist_lock) from softirq context, which can d...

PT-2026-51840

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A deadlock can occur in the send sigio and send sigurg functions when a process group receives a signal. This happens because these functions use read lock&tasklist lock to traverse the...

GSD-2022-1006292 ALSA: timer: Use deferred fasync helper

ALSA: timer: Use deferred fasync helper This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.9.326 by commit...

GSD-2022-1005948 ALSA: timer: Use deferred fasync helper

ALSA: timer: Use deferred fasync helper This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.211 by commit...

PT-2022-34463

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v4.14.291 Description The issue is related to the ALSA timer and the use of a deferred fasync helper. The actual impact and attack plausibility have not yet been proven. Recommendations For Linux Kernel versions...

PT-2022-34550

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v4.9.326 Description The issue concerns the ALSA timer and its use of a deferred fasync helper. The actual impact and potential for attack have not been proven yet. Recommendations For Linux Kernel versions prior...

PT-2022-34351

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v4.19.256 Description The issue concerns the ALSA timer and its use of a deferred fasync helper. The actual impact and potential for attack have not been proven yet. Recommendations For Linux Kernel versions prio...

GSD-2022-1005468 ALSA: timer: Use deferred fasync helper

ALSA: timer: Use deferred fasync helper This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.63 by commit...

PT-2022-33329 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.19.4 Description: The issue is related to the ALSA pcm and the use of a deferred fasync helper. The actual impact and attack plausibility have not yet been proven. Recommendations: For Linux Kernel versions...

PT-2022-33330 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.19.4 Description: The issue is related to the ALSA timer and the use of a deferred fasync helper. The actual impact and attack plausibility have not yet been proven. Recommendations: For Linux Kernel versions...