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Change History

In the Linux kernel, the following vulnerability has been resolved:

drm/vc4: Stop the active perfmon before being destroyed

Upon closing the file descriptor, the active performance monitor is not
stopped. Although all perfmons are destroyed in `vc4_perfmon_close_file()`,
the active performance monitor's pointer (`vc4->active_perfmon`) is still
retained.

If we open a new file descriptor and submit a few jobs with performance
monitors, the driver will attempt to stop the active performance moni

kernel.org https://git.kernel.org/stable/c/0b2ad4f6f2bec74a5287d96cb2325a5e11706f22 [No types assigned]

kernel.org https://git.kernel.org/stable/c/75452da51e2403e14be007df80d133e1443fc967 [No types assigned]

kernel.org https://git.kernel.org/stable/c/937943c042503dc6087438bf3557f9057a588ba0 [No types assigned]

kernel.org https://git.kernel.org/stable/c/c9adba739d5f7cdc47a7754df4a17b47b1ecf513 [No types assigned]