CVE-2024-50187
MediumIn 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 monitor using the stale pointer in `vc4->active_perfmon`. However, this pointer is no longer valid because the previous process has already terminated, and all performance monitors associated with it have been destroyed and freed. To fix this, when the active performance monitor belongs to a given process, explicitly stop it before destroying and freeing it.
CVSS 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected versions
Linux kernel versions
4.17
and later are affected. Fixed in
6.1.113,
6.6.57,
6.11.4,
6.12
and their respective stable series.
References
The following references provide additional information about CVE-2024-50187 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
-
-
PatchKernel patch commithttps://git.kernel.org/stable/c/0b2ad4f6f2bec74a5287d96cb2325a5e11706f22
-
PatchKernel patch commithttps://git.kernel.org/stable/c/75452da51e2403e14be007df80d133e1443fc967
-
PatchKernel patch commithttps://git.kernel.org/stable/c/937943c042503dc6087438bf3557f9057a588ba0
Frequently asked questions
-
What is CVE-2024-50187?
CVE-2024-50187 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.17 onward and has been patched in 6.1.113, 6.6.57, 6.11.4 and others. CVE-2024-50187 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
-
What is the CVSS score for CVE-2024-50187?
CVE-2024-50187 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2024-50187?
Yes — CVE-2024-50187 has been patched. Fixed versions include 6.1.113, 6.6.57, 6.11.4 and others. If you are running Linux kernel 4.17 or later up to the fix versions, apply the relevant patch for your kernel branch.
-
Is CVE-2024-50187 actively exploited?
No — CVE-2024-50187 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.