Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from a competing condition between timershutdownsync and timer expiration, which could result in WARNON being trigger...

Linux Kernel Security Vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from nilfs2 not properly disabling sctimer, which could result in the release of the active timer...

Ubuntu 22.04 LTS / 24.04 LTS : Linux kernel (Azure) vulnerabilities (USN-7935-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7935-1 advisory. Jean-Claude Graf, Sandro Regge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor...

PT-2025-51660

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A potential memory leak exists in the do timer create function related to POSIX timers. Specifically, when a timer ID is allocated and subsequent access to a user space value fails, the...

USN-7935-1: Linux kernel (Azure) vulnerabilities

Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain processors. This flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this t...

CVE-2025-14655

A security flaw has been discovered in Tenda AC20 16.03.08.12. The impacted element is the function formSetRebootTimer of the file /goform/SetSysAutoRebbotCfg of the component httpd. Performing a manipulation of the argument rebootTime results in stack-based buffer overflow. The attack is possibl...

Linux snd_utimer_create() Heap Buffer Overflow DoS

The vulnerability of the sndutimercreate function in the sound/core/timer.c component of the Linux operating system is related to the allocation of unlimited memory. Exploiting this vulnerability allows a hacker to cause a service failure...

CVE-2025-40257

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix a race in mptcppmdeladdtimer mptcppmdeladdtimer can call skstoptimersyncsk, &entry-;addtimer while another might have free entry already, as reported by syzbot. Add RCU protection to fix this issue. Also change confusi...

CVE-2025-14655

A security flaw has been discovered in Tenda AC20 16.03.08.12. The impacted element is the function formSetRebootTimer of the file /goform/SetSysAutoRebbotCfg of the component httpd. Performing a manipulation of the argument rebootTime results in stack-based buffer overflow. The attack is possibl...

CVE-2025-14655

A security flaw has been discovered in Tenda AC20 16.03.08.12. The impacted element is the function formSetRebootTimer of the file /goform/SetSysAutoRebbotCfg of the component httpd. Performing a manipulation of the argument rebootTime results in stack-based buffer overflow. The attack is possibl...

CVE-2025-14655 Tenda AC20 httpd SetSysAutoRebbotCfg formSetRebootTimer stack-based overflow

A security flaw has been discovered in Tenda AC20 16.03.08.12. The impacted element is the function formSetRebootTimer of the file /goform/SetSysAutoRebbotCfg of the component httpd. Performing a manipulation of the argument rebootTime results in stack-based buffer overflow. The attack is possibl...

PT-2025-51159

Name of the Vulnerable Software and Affected Versions Tenda AC20 version 16.03.08.12 Description A security flaw exists in Tenda AC20 version 16.03.08.12. The issue resides in the formSetRebootTimer function within the /goform/SetSysAutoRebbotCfg file of the httpd component. Manipulation of the...

Unity Linux 20.1050e Security Update: kernel (UTSA-2025-991162)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-991162 advisory. In the Linux kernel, the following vulnerability has been resolved: drivers: tty: serial: Fix deadlock in sa1100settermios There is a deadlock in sa1100settermios,...

Unity Linux 20.1050e Security Update: kernel (UTSA-2025-991115)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-991115 advisory. In the Linux kernel, the following vulnerability has been resolved: drivers: usb: host: Fix deadlock in oxubussuspend There is a deadlock in oxubussuspend, which is...

Unity Linux 20.1050e Security Update: kernel (UTSA-2025-991131)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-991131 advisory. In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8192u: Fix deadlock in ieee80211beaconsstop There is a deadlock in...

CVE-2023-53815

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Prevent RT livelock in itimerdelete itimerdelete has a retry loop when the timer is concurrently expired. On non-RT kernels this just spin-waits until the timer callback has completed, except for posix CPU timers...

CVE-2023-53781

In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in tcpwritetimerhandler. With Eric's ref tracker, syzbot finally found a repro for use-after-free in tcpwritetimerhandler by kernel TCP sockets. 0 If SMC creates a kernel socket in smccreate, the kernel...

SUSE CVE-2023-53781

In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in tcpwritetimerhandler. With Eric's ref tracker, syzbot finally found a repro for use-after-free in tcpwritetimerhandler by kernel TCP sockets. 0 If SMC creates a kernel socket in smccreate, the kernel...

SUSE CVE-2023-53815

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Prevent RT livelock in itimerdelete itimerdelete has a retry loop when the timer is concurrently expired. On non-RT kernels this just spin-waits until the timer callback has completed, except for posix CPU timers...

CVE-2025-40327 perf/core: Fix system hang caused by cpu-clock usage

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix system hang caused by cpu-clock usage cpu-clock usage by the async-profiler tool can trigger a system hang, which got bisected back to the following commit by Octavia Togami: 18dbcbfabfff "perf: Fix the POLLHUP...