UBUNTU-CVE-2025-68240

In the Linux kernel, the following vulnerability has been resolved: nilfs2: avoid having an active sctimer before freeing sci Because kthreadstop did not stop sctask properly and returned -EINTR, the sctimer was not properly closed, ultimately causing the problem 1 reported by syzbot when freeing...

UBUNTU-CVE-2025-68247

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Plug potential memory leak in dotimercreate When posix timer creation is set to allocate a given timer ID and the access to the user space value faults, the function terminates without freeing the already allocated...

CVE-2025-68247

The CVE-2025-68247 issue affects the Linux kernel posix-timers code, specifically do_timer_create(), where memory allocated for a timer ID could leak if user-space access faults occur during timer creation. The underlying root cause is the allocation happening before validating user-space data; t...

CVE-2025-68247 posix-timers: Plug potential memory leak in do_timer_create()

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Plug potential memory leak in dotimercreate When posix timer creation is set to allocate a given timer ID and the access to the user space value faults, the function terminates without freeing the already allocated...

CVE-2025-68247 posix-timers: Plug potential memory leak in do_timer_create()

In the Linux kernel, the following vulnerability has been resolved: posix-timers: Plug potential memory leak in dotimercreate When posix timer creation is set to allocate a given timer ID and the access to the user space value faults, the function terminates without freeing the already allocated...

CVE-2025-68240

The CVE-2025-68240 entry concerns the Linux kernel nilfs2 subsystem. The described vulnerability arose because a sc_timer could remain active when freeing sci, caused by kthread_stop not reliably stopping sc_task (returning -EINTR), leaving the timer improperly closed. The remediation uses timer_...

CVE-2025-68240 nilfs2: avoid having an active sc_timer before freeing sci

In the Linux kernel, the following vulnerability has been resolved: nilfs2: avoid having an active sctimer before freeing sci Because kthreadstop did not stop sctask properly and returned -EINTR, the sctimer was not properly closed, ultimately causing the problem 1 reported by syzbot when freeing...

CVE-2025-68240 nilfs2: avoid having an active sc_timer before freeing sci

In the Linux kernel, the following vulnerability has been resolved: nilfs2: avoid having an active sctimer before freeing sci Because kthreadstop did not stop sctask properly and returned -EINTR, the sctimer was not properly closed, ultimately causing the problem 1 reported by syzbot when freeing...

CVE-2025-68214

In the Linux kernel, the following vulnerability has been resolved: timers: Fix NULL function pointer race in timershutdownsync There is a race condition between timershutdownsync and timer expiration that can lead to hitting a WARNON in expiretimers. The issue occurs when timershutdownsync clear...

AZL-72475 CVE-2025-68214 affecting package kernel for versions less than 6.6.119.3-1

In the Linux kernel, the following vulnerability has been resolved: timers: Fix NULL function pointer race in timershutdownsync There is a race condition between timershutdownsync and timer expiration that can lead to hitting a WARNON in expiretimers. The issue occurs when timershutdownsync clear...

CVE-2025-68214

In the Linux kernel, the following vulnerability has been resolved: timers: Fix NULL function pointer race in timershutdownsync There is a race condition between timershutdownsync and timer expiration that can lead to hitting a WARNON in expiretimers. The issue occurs when timershutdownsync clear...

UBUNTU-CVE-2025-68214

In the Linux kernel, the following vulnerability has been resolved: timers: Fix NULL function pointer race in timershutdownsync There is a race condition between timershutdownsync and timer expiration that can lead to hitting a WARNON in expiretimers. The issue occurs when timershutdownsync clear...

CVE-2025-68214

Summary (CVE-2025-68214): The Linux kernel timer subsystem had a race between timer_shutdown_sync() and timer_expire() that could trigger a WARN_ON_ONCE when a timer’s function pointer was cleared to NULL while the timer was still running. The root cause: timer_shutdown_sync() could detach the ti...

CVE-2025-68214 timers: Fix NULL function pointer race in timer_shutdown_sync()

In the Linux kernel, the following vulnerability has been resolved: timers: Fix NULL function pointer race in timershutdownsync There is a race condition between timershutdownsync and timer expiration that can lead to hitting a WARNON in expiretimers. The issue occurs when timershutdownsync clear...

CVE-2025-68214

In the Linux kernel, the following vulnerability has been resolved: timers: Fix NULL function pointer race in timershutdownsync There is a race condition between timershutdownsync and timer expiration that can lead to hitting a WARNON in expiretimers. The issue occurs when timershutdownsync clear...

CVE-2025-68214 timers: Fix NULL function pointer race in timer_shutdown_sync()

In the Linux kernel, the following vulnerability has been resolved: timers: Fix NULL function pointer race in timershutdownsync There is a race condition between timershutdownsync and timer expiration that can lead to hitting a WARNON in expiretimers. The issue occurs when timershutdownsync clear...

Linux kernel 安全漏洞

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 安全漏洞

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...

PT-2025-51627

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists within the timer subsystem, specifically in the timer shutdown sync function, potentially leading to a kernel warning. This occurs when the timer function pointer...

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...