UBUNTU-CVE-2025-40142

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Disable bottom softirqs as part of spinlockirq on PREEMPTRT sndpcmgrouplockirq acquires a spinlockt and disables interrupts via spinlockirq. This also implicitly disables the handling of softirqs such as TIMERSOFTIRQ. ...

CVE-2021-47396

CVE-2021-47396 is a Linux kernel issue affecting mac80211-hwsim beacon timing. The root cause is improper late hrtimer handling: when a timer fires late, the code re-arms for the next deadline, which can already be in the past, causing repeated misalignment and potential stalls. The fix, as descr...

CVE-2021-47396

In the Linux kernel, the following vulnerability has been resolved: mac80211-hwsim: fix late beacon hrtimer handling Thomas explained in https://lore.kernel.org/r/87mtoeb4hb.ffs@tglx that our handling of the hrtimer here is wrong: If the timer fires late e.g. due to vCPU scheduling, as reported b...

PT-2021-30113

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.10.71 Description The issue concerns late beacon hrtimer handling in mac80211-hwsim. It was introduced in version v3.9 and fixed in version v5.10.71. The actual impact and attack plausibility have not yet been...

PT-2021-26118

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.10.71 Description The issue concerns late beacon hrtimer handling in mac80211-hwsim. It was introduced in version v3.9 and fixed in version v5.10.71. The actual impact and attack plausibility have not yet been...

PT-2021-26065

Name of the Vulnerable Software and Affected Versions Linux Kernel versions 3.9 through 5.4.150 Description The issue concerns late beacon hrtimer handling in mac80211-hwsim. It was introduced in version v3.9 and fixed in version v5.4.151. The actual impact and attack plausibility have not yet be...

PT-2021-30187

Name of the Vulnerable Software and Affected Versions Linux Kernel versions 3.9 through 5.14.9 Description The issue concerns late beacon hrtimer handling in mac80211-hwsim. It was introduced in version v3.9 and fixed in version v5.14.10. The actual impact and attack plausibility have not yet bee...