CVE-2025-39705drm/amd/display: fix a Null pointer dereference vulnerability
Updated under an hour ago ()
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In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix a Null pointer dereference vulnerability [Why] A null pointer dereference vulnerability exists in the AMD display driver's (DC module) cleanup function dc_destruct(). When display control context (dc->ctx) construction fails (due to memory allocation failure), this pointer remains NULL. During subsequent error handling when dc_destruct() is called, there's no NULL check before dereferencing the perf_trace member (dc->ctx->perf_trace), causing a kernel null pointer dereference crash. [How] Check if dc->ctx is non-NULL before dereferencing. (Updated commit text and removed unnecessary error message) (cherry picked from commit 9dd8e2ba268c636c240a918e0a31e6feaee19404)
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 21, 2026
- First seen by InfoSec Signals
- Oct 19, 2026
Affected products
Linux Linux linux:linux (from the name) | 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c builds before 0d9f4f202de1522aadc7a827aba0ae92b3d70937; 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c builds before 0961673cc5f0055957aa46f25eb4ef6c07e00165; 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c builds before 4ade995b9b25b3c6e8dc42c27070340f1358d8c8; 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c builds before 1bcf63a44381691d6192872801f830ce3250e367 | CNA record |
linux linux_kernel linux:linux_kernel | from 4.15 before 6.12.44; from 6.13 before 6.16.4 | NVD |
References
- https://git.kernel.org/stable/c/0d9f4f202de1522aadc7a827aba0ae92b3d70937
- https://git.kernel.org/stable/c/0961673cc5f0055957aa46f25eb4ef6c07e00165patch
- https://git.kernel.org/stable/c/4ade995b9b25b3c6e8dc42c27070340f1358d8c8patch
- https://git.kernel.org/stable/c/1bcf63a44381691d6192872801f830ce3250e367patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.