CVEvulnerability
CVE-2026-68236
7.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-10
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-415
Description
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: set new_stream to NULL after release
In dm_update_crtc_state(), the skip_modeset path releases new_stream
via dc_stream_release() but does not set the pointer to NULL.
If a later error (e.g., color management failure) triggers the fail
label, the error path calls dc_stream_release() again on the same
dangling pointer, causing a double release and potential use-after-free.
Fix this by setting new_stream to NULL after the initial release.
(cherry picked from commit 99f3af19073b3ddbfd96e789124cce12c4277b28)
Related
Weakness · CWE (1)
- CWE-415 Double Free weakness
References
- https://git.kernel.org/stable/c/01ba5b36898d6258f584269537cc49e7b05cf7c6 git.kernel.org
- https://git.kernel.org/stable/c/0676fecbb5242aa22c057e78326d6d6041db034c git.kernel.org
- https://git.kernel.org/stable/c/5182e442e61397d446c36995b8f5676942d35b82 git.kernel.org
- https://git.kernel.org/stable/c/679f23f0a3606afcef1ffabd72222f00a54ad9e3 git.kernel.org
- https://git.kernel.org/stable/c/92b7c6e3a1546c6db868b07e93fa6fb950d1d3a0 git.kernel.org
- https://git.kernel.org/stable/c/9fa26b9eed6195bf840f39ac183b9a6237548755 git.kernel.org
- https://git.kernel.org/stable/c/ba8bf1dcbb44773e7a0fd13b42925c644e0d5e76 git.kernel.org
- https://git.kernel.org/stable/c/bf9c06c70f496f1ba4474caf95c69696c828340e git.kernel.org