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...

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

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

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...

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...

kernel: ALSA: Use-after-free in kill_fasync

A use-after-free vulnerability was found in ALSA pcm layer, which allows local users to cause a denial of service, memory corruption, or possibly other unspecified impact. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely...

Oracle Linux 5 : kernel (ELSA-2010-0046)

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2010-0046 advisory. - firewire ohci: handle receive packets with zero data Jay Fenlason 547241 547242 CVE-2009-4138 - fs respect flag in docoredump Danny Feng 544188 54418...

PT-2010-1701 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 2.6.32.6 Description: A race condition in the tty fasync function allows local users to cause a denial of service, potentially resulting in a system crash due to a NULL pointer dereference. The issue is related ...

CVE-2009-4895

Race condition in the ttyfasync function in drivers/char/ttyio.c in the Linux kernel before 2.6.32.6 allows local users to cause a denial of service NULL pointer dereference and system crash or possibly have unspecified other impact via unknown vectors, related to the putttyqueue and fsetown...

kernel: create_elf_tables can leave urandom in a bad state

Use-after-free vulnerability in the fasynchelper function in fs/fcntl.c in the Linux kernel before 2.6.33-rc4-git1 allows local users to gain privileges via vectors that include enabling OASYNC aka FASYNC or FIOASYNC on a locked file, and then closing this file...

kernel: create_elf_tables can leave urandom in a bad state

Use-after-free vulnerability in the fasynchelper function in fs/fcntl.c in the Linux kernel before 2.6.33-rc4-git1 allows local users to gain privileges via vectors that include enabling OASYNC aka FASYNC or FIOASYNC on a locked file, and then closing this file...

SuSE 11.2 Security Update: kernel (2010-01-28)

The Linux kernel for openSUSE 11.2 was updated to 2.6.31.12 to fix the following bugs and security issues : - The permission of the devtmpfs root directory was incorrectly 1777 instead of 755. If it was used, local attackers could escalate privileges. openSUSE 11.2 does not use this filesystem by...