CVE-2024-50187

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Source
https://cve.org/CVERecord?id=CVE-2024-50187
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50187.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-50187
Downstream
Related
Published
2024-11-08T05:38:28.194Z
Modified
2026-03-11T07:51:53.173406Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
drm/vc4: Stop the active perfmon before being destroyed
Details

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 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 However, this pointer is no longer valid because the previous process has already terminated, and all performance monitors associated with it have been destroyed and freed.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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50187.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
65101d8c9108201118efa7e08f4e2c57f438deb9
Fixed
75452da51e2403e14be007df80d133e1443fc967
Fixed
937943c042503dc6087438bf3557f9057a588ba0
Fixed
c9adba739d5f7cdc47a7754df4a17b47b1ecf513
Fixed
0b2ad4f6f2bec74a5287d96cb2325a5e11706f22

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50187.json"