CVE-2025-21688 — Race Condition in Linux
Severity
4.7MEDIUMNVD
EPSS
0.0%
top 93.82%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedFeb 10
Description
In the Linux kernel, the following vulnerability has been resolved:
drm/v3d: Assign job pointer to NULL before signaling the fence
In commit e4b5ccd392b9 ("drm/v3d: Ensure job pointer is set to NULL
after job completion"), we introduced a change to assign the job pointer
to NULL after completing a job, indicating job completion.
However, this approach created a race condition between the DRM
scheduler workqueue and the IRQ execution thread. As soon as the fence is
signaled in the IRQ executio…
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.0 | Impact: 3.6
Affected Packages5 packages
▶CVEListV5linux/linux1bd6303d08c85072ce40ac01a767ab67195105bd — 9793206fbf5293534c3a79d78f196e2cbb48c22d+8
Patches
🔴Vulnerability Details
2OSV▶
CVE-2025-21688: In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Assign job pointer to NULL before signaling the fence In commit e4b5ccd39↗2025-02-10
GHSA▶
GHSA-gjcc-jpc7-jff7: In the Linux kernel, the following vulnerability has been resolved:
drm/v3d: Assign job pointer to NULL before signaling the fence
In commit e4b5ccd↗2025-02-10