CVE-2024-50187

MEDIUM EPSS 12.5%
Published Nov 8, 20241y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Nov 8, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

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 However, this pointer is no longer valid because the previous process has already terminated, and all performance monitors associated with it have been destroyed and freed.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

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
12.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 5

VendorProductVersionRange
linuxlinux_kernel*≥4.17  –  <6.1.113
linuxlinux_kernel*≥6.2  –  <6.6.57
linuxlinux_kernel*≥6.7  –  <6.11.4
linuxlinux_kernel6.12any
linuxlinux_kernel6.12any

References 5

  • git.kernel.org https://git.kernel.org/stable/c/0b2ad4f6f2bec74a5287d96cb2325a5e11706f22
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/75452da51e2403e14be007df80d133e1443fc967
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/937943c042503dc6087438bf3557f9057a588ba0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c9adba739d5f7cdc47a7754df4a17b47b1ecf513
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0b2ad4f6f2bec74a5287d96cb2325a5e11706f22
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/75452da51e2403e14be007df80d133e1443fc967
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/937943c042503dc6087438bf3557f9057a588ba0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c9adba739d5f7cdc47a7754df4a17b47b1ecf513
    Patch