CVE-2021-47454 powerpc/smp: do not decrement idle task preempt count in CPU offline

In the Linux kernel, the following vulnerability has been resolved: powerpc/smp: do not decrement idle task preempt count in CPU offline With PREEMPTCOUNT=y, when a CPU is offlined and then onlined again, we get: BUG: scheduling while atomic: swapper/1/0/0x00000000 no locks held by swapper/1/0...

CVE-2022-48634 drm/gma500: Fix BUG: sleeping function called from invalid context errors

In the Linux kernel, the following vulnerability has been resolved: drm/gma500: Fix BUG: sleeping function called from invalid context errors gmacrtcpageflip was holding the eventlock spinlock while calling crtcfuncs-modesetbase which takes wwmutex. The only reason to hold eventlock is to clear...

PT-2025-53163

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.2.0 4 Description The Linux kernel contained a flaw related to the handling of recursion checks within the Berkeley Packet Filter BPF subsystem. Specifically, the preempt count sub,add functions were called aft...

PT-2021-26319

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions 5.10.50 through 5.10.75 Description: The issue is related to the powerpc/smp component, specifically concerning the handling of the idle task preempt count during CPU offline operations. The actual impact and potential f...

PT-2021-26359

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions v5.14 through v5.14.14 Description: The issue is related to the powerpc/smp component, specifically concerning the handling of the idle task preempt count during CPU offline operations. The actual impact and potential fo...

PT-2021-30314

Name of the Vulnerable Software and Affected Versions Linux Kernel versions 5.10.50 through 5.10.75 Description The issue is related to the powerpc/smp component, specifically concerning the handling of the idle task preempt count during CPU offline operations. The actual impact and potential for...

PT-2024-11448

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 5.15.0-rc2+ Description The issue arises when a CPU is offlined and then onlined again with PREEMPT COUNT=y, resulting in a BUG: scheduling while atomic error. This occurs because the arch cpu idle dead function...