Answer in brief
CVE-2026-89816 records a Unknown severity vulnerability in drm: Fix drm_crtc_commit leak if signaled when PAGE_FLIP_EVENT is used. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=24835e442f289813aa568d142a755672a740503c <c5517b71101f61a45144e3cf77a19626355272de || >=24835e442f289813aa568d142a755672a740503c <866a04137dac7e82a3848851061ff7ed15c2847e || >=24835e442f289813aa568d142a755672a740503c <6a6a7aae4681a20cd32789fea9a487aaafa0e7a3 || >=24835e442f289813aa568d142a755672a740503c <e2f27b5ed9084feb7bae9ef2bc80de37c92280b1 || >=24835e442f289813aa568d142a755672a740503c <ff73f5f43d032c3da3c534c517f661e8dfeb358a || >=24835e442f289813aa568d142a755672a740503c <66b1b309886337745d395bbc158440ab196305ce || >=24835e442f289813aa568d142a755672a740503c <e6195b941fdc8d81fc431c9f25539cf6c6234b51 || >=24835e442f289813aa568d142a755672a740503c <4d4be202165e832d74849b4a68e289a2a377039c || c75fe7899538890109aad7bbf92b2f304389e825 || 2a3241044b1c4ecc13f73b7158881881fb7534a1 || >=4.9.19 <4.10 || >=4.10.7 <4.11 | c5517b71101f61a45144e3cf77a19626355272de, 866a04137dac7e82a3848851061ff7ed15c2847e, 6a6a7aae4681a20cd32789fea9a487aaafa0e7a3, e2f27b5ed9084feb7bae9ef2bc80de37c92280b1, ff73f5f43d032c3da3c534c517f661e8dfeb358a, 66b1b309886337745d395bbc158440ab196305ce, e6195b941fdc8d81fc431c9f25539cf6c6234b51, 4d4be202165e832d74849b4a68e289a2a377039c, 4.10, 4.11 |
| Linux/Linuxgeneric | 4.11 | Not reported |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 16, 2026
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.
Quoted source text, attributed separately from HOL analysis.