The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - timers: Fix NULL function pointer race in timer_shutdown_sync() There is a race condition between     timer_shutdown_sync() and timer expiration that can lead to hitting a WARN_ON in expire_timers(). The     issue occurs when timer_shutdown_sync() clears the timer function to NULL while the timer is still running     on another CPU. The race scenario looks like this: CPU0 CPU1 <SOFTIRQ> lock_timer_base() expire_timers()     base->running_timer = timer; unlock_timer_base() [call_timer_fn enter] mod_timer() ...
    timer_shutdown_sync() lock_timer_base() // For now, will not detach the timer but only clear its function     to NULL if (base->running_timer != timer) ret = detach_if_pending(timer, base, true); if (shutdown)     timer->function = NULL; unlock_timer_base() [call_timer_fn exit] lock_timer_base() base->running_timer =     NULL; unlock_timer_base() ... // Now timer is pending while its function set to NULL. // next timer     trigger <SOFTIRQ> expire_timers() WARN_ON_ONCE(!fn) // hit ... lock_timer_base() // Now timer will detach     if (base->running_timer != timer) ret = detach_if_pending(timer, base, true); if (shutdown)     timer->function = NULL; unlock_timer_base() The problem is that timer_shutdown_sync() clears the timer     function regardless of whether the timer is currently running. This can leave a pending timer with a NULL     function pointer, which triggers the WARN_ON_ONCE(!fn) check in expire_timers(). Fix this by only clearing     the timer function when actually detaching the timer. If the timer is running, leave the function pointer     intact, which is safe because the timer will be properly detached when it finishes running.
    (CVE-2025-68214)

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Linux Distros Unpatched Vulnerability : CVE-2025-68214

medium Nessus Plugin ID 278813

Version 1.10