CVE-2026-89816
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
drm: Fix drm_crtc_commit leak if signaled when PAGE_FLIP_EVENT is used
In the Linux kernel, the following vulnerability has been resolved: drm: Fix drm_crtc_commit leak if signaled when PAGE_FLIP_EVENT is used Commit 1c6ceeee6ebb ("drm/atomic: Fix memleak on ERESTARTSYS during non-blocking commits") fixed a very similar issue when the event was allocated by drm_atomic_helper_setup_commit() itself. However, if the event is allocated in prepare_signaling(), it will also be set to NULL in complete_signaling(), which prevents drm_crtc_commit from being put in __drm_atomic_helper_crtc_destroy_state(). Dropping the reference when the event is set to NULL at complete_signaling() fixes the leak. The leak can be reproduced by sending a signal to the thread using DRM_MODE_PAGE_FLIP_EVENT and using a sw_sync fence to cause the atomic ioctl to block at drm_atomic_helper_wait_for_fences(). It happened both with amdgpu and vkms.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 24835e442f289813aa568d142a755672a740503c | affected | git | c5517b71101f61a45144e3cf77a19626355272de | Unavailable | None listed |
| 24835e442f289813aa568d142a755672a740503c | affected | git | 866a04137dac7e82a3848851061ff7ed15c2847e | Unavailable | None listed |
| 24835e442f289813aa568d142a755672a740503c | affected | git | 6a6a7aae4681a20cd32789fea9a487aaafa0e7a3 | Unavailable | None listed |
| 24835e442f289813aa568d142a755672a740503c | affected | git | e2f27b5ed9084feb7bae9ef2bc80de37c92280b1 | Unavailable | None listed |
| 24835e442f289813aa568d142a755672a740503c | affected | git | ff73f5f43d032c3da3c534c517f661e8dfeb358a | Unavailable | None listed |
| 24835e442f289813aa568d142a755672a740503c | affected | git | 66b1b309886337745d395bbc158440ab196305ce | Unavailable | None listed |
| 24835e442f289813aa568d142a755672a740503c | affected | git | e6195b941fdc8d81fc431c9f25539cf6c6234b51 | Unavailable | None listed |
| 24835e442f289813aa568d142a755672a740503c | affected | git | 4d4be202165e832d74849b4a68e289a2a377039c | Unavailable | None listed |
| c75fe7899538890109aad7bbf92b2f304389e825 | affected | git | Unavailable | Unavailable | None listed |
| 2a3241044b1c4ecc13f73b7158881881fb7534a1 | affected | git | Unavailable | Unavailable | None listed |
| 4.9.19 | affected | semver | 4.10 | Unavailable | None listed |
| 4.10.7 | affected | semver | 4.11 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.11 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.11 | Unavailable | None listed |
| 5.10.270 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.221 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.188 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.110 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.51 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.5 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |