kernel: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()

A race condition was found in the Linux kernel’s POSIX CPU timer handling, where handleposixcputimers may run concurrently with posixcputimerdel on an exiting task which could result in use-after-free scenarios. An attacker with local user access could use this flaw to crash or escalate their...

kernel: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()

A race condition was found in the Linux kernel’s POSIX CPU timer handling, where handleposixcputimers may run concurrently with posixcputimerdel on an exiting task which could result in use-after-free scenarios. An attacker with local user access could use this flaw to crash or escalate their...

SUSE CVE-2025-38352

In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: fix race between handleposixcputimers and posixcputimerdel If an exiting non-autoreaping task has already passed exitnotify and calls handleposixcputimers from IRQ, it can be reaped by its parent or debugger rig...

UBUNTU-CVE-2025-38352

In the Linux kernel, the following vulnerability has been resolved: posix-cpu-timers: fix race between handleposixcputimers and posixcputimerdel If an exiting non-autoreaping task has already passed exitnotify and calls handleposixcputimers from IRQ, it can be reaped by its parent or debugger rig...

UBUNTU-CVE-2022-50005

In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: Fix use-after-free bugs caused by pn532cmdtimeout When the pn532 uart device is detaching, the pn532uartremove is called. But there are no functions in pn532uartremove that could delete the cmdtimeout timer, which wil...

UBUNTU-CVE-2022-49555

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciqca: Use deltimersync before freeing While looking at a crash report on a timer list being corrupted, which usually happens when a timer is freed while still active. This is commonly triggered by code calling deltim...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: mptcp: pm: Fixed a UAF in timerdeletesync There are two paths to access mptcppmdeladdtimer, resulting in a race condition: CPU1 CPU2 ==== ==== netrxaction napipoll netlinksendmsg napipoll netlinkunicast processbacklog...

kernel: mptcp: pm: Fix uaf in __timer_delete_sync

A use-after-free flaw was found in the Linux kernel’s Multipath TCP MPTCP subsystem. This flaw allows a local user to crash or potentially escalate their privileges on the system...

kernel: mptcp: pm: Fix uaf in __timer_delete_sync

A use-after-free flaw was found in the Linux kernel’s Multipath TCP MPTCP subsystem. This flaw allows a local user to crash or potentially escalate their privileges on the system...

SUSE CVE-2024-46858

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: Fix uaf in timerdeletesync There are two paths to access mptcppmdeladdtimer, result in a race condition: CPU1 CPU2 ==== ==== netrxaction napipoll netlinksendmsg napipoll netlinkunicast processbacklog netlinkunicastkern...

CVE-2024-46858

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: Fix uaf in timerdeletesync There are two paths to access mptcppmdeladdtimer, result in a race condition: CPU1 CPU2 ==== ==== netrxaction napipoll netlinksendmsg napipoll netlinkunicast processbacklog netlinkunicastkern...

AZL-49785 CVE-2024-46858 affecting package kernel for versions less than 6.6.56.1-5

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: Fix uaf in timerdeletesync There are two paths to access mptcppmdeladdtimer, result in a race condition: CPU1 CPU2 ==== ==== netrxaction napipoll netlinksendmsg napipoll netlinkunicast processbacklog netlinkunicastkern...

DEBIAN-CVE-2024-46858

In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: Fix uaf in timerdeletesync There are two paths to access mptcppmdeladdtimer, result in a race condition: CPU1 CPU2 ==== ==== netrxaction napipoll netlinksendmsg napipoll netlinkunicast processbacklog netlinkunicastkern...

SUSE CVE-2024-46786

In the Linux kernel, the following vulnerability has been resolved: fscache: delete fscachecookielrutimer when fscache exits to avoid UAF The fscachecookielrutimer is initialized when the fscache module is inserted, but is not deleted when the fscache module is removed. If timerreduce is called...

CVE-2024-44962 Bluetooth: btnxpuart: Shutdown timer and prevent rearming when driver unloading

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btnxpuart: Shutdown timer and prevent rearming when driver unloading When unload the btnxpuart driver, its associated timer will be deleted. If the timer happens to be modified at this moment, it leads to the kernel ca...

kernel: posix cpu timer use-after-free may lead to local privilege escalation

A use-after-free flaw was found in the Linux kernel’s POSIX CPU timers functionality in the way a user creates and then deletes the timer in the non-leader thread of the program. This flaw allows a local user to crash or potentially escalate their privileges on the system...

PT-2024-11320 · Linux +6 · Linux Kernel +6

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to a possible use-after-free in the Linux kernel's watchdog driver. The driver's remove path calls del timer, which does not wait until the timer handler finishes,...

PT-2024-11353 · Linux +6 · Linux Kernel +6

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to a possible use-after-free in the HFC cleanup function of the mISDN module. This occurs because the module's remove path calls del timer, which does not wait unt...

Mozilla: Use-after-free in driver timers

A use-after-free vulnerability can occur when refresh driver timers are refreshed in some circumstances during shutdown when the timer is deleted while still in use. This results in a potentially exploitable crash. This vulnerability affects Firefox 62, Firefox ESR 60.2, and Thunderbird 60.2.1...

security flaw

Mozilla Firefox 1.5 before 1.5.0.5, Thunderbird before 1.5.0.5, and SeaMonkey before 1.0.3 allows remote attackers to cause a denial of service crash and possibly execute arbitrary code via simultaneous XPCOM events, which causes a timer object to be deleted in a way that triggers memory corrupti...