CVE-2026-98319

drm: Fix drm_pending_vblank_event leak in error path for out_fence_ptr

State: Published
Severity: Not scored
Published: Oct 6, 2026
Updated: Oct 19, 2026
Reserved: Sep 25, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

drm: Fix drm_pending_vblank_event leak in error path for out_fence_ptr

When an out_fence_ptr is provided but DRM_MODE_PAGE_FLIP_EVENT is not set, a drm_pending_vblank_event will be allocated. If later, there is an allocation failure or another failure at setup_out_fence(), that event will not have base.fence set and it will not be released at complete_signaling().

Release the event and set crtc_state->event to NULL just like in the DRM_MODE_PAGE_FLIP_EVENT case when there is a failure at drm_event_reserve_init(). That is, prepare_signaling() releases the event and there is nothing to be done at complete_signaling(). Use drm_event_cancel_free() as that will also undo drm_event_reserve_init() in case it has been called.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	92c715fca907686f5298220ece53423e38ba3aed to before 3d6576ed3de01e8a378397b7020e33ae3d40aa6cAffected 92c715fca907686f5298220ece53423e38ba3aed to before 86c33f740aa27e9cdc1259f0cc59c9c58f545e4bAffected 92c715fca907686f5298220ece53423e38ba3aed to before 88c450e23b8fd4f1dcd329562f5e81ef05f3d941Affected 92c715fca907686f5298220ece53423e38ba3aed to before 780716e2e019186fa6e5aad097a44b87b0b5388fAffected 92c715fca907686f5298220ece53423e38ba3aed to before d0be0516b5224eb5b6f42f8564a8deadb20ae16bAffected 92c715fca907686f5298220ece53423e38ba3aed to before daefd7ff159b0d1fb8c9e64430dcbe2aca1bdd09Affected 92c715fca907686f5298220ece53423e38ba3aed to before b9a68a9ccaada15d8dd0102c188cc6b868ff800bAffected 92c715fca907686f5298220ece53423e38ba3aed to before 9eb1a393c89a79c4210230d23e7d88d239c61d7bAffected 4cd462c7f2b6fcc208aebf44f2c831681feaa925Affected 4.9.10 to before 4.10Affected
LinuxLinux	4.10Affected before 4.10Not affected 5.10.271 through 5.10.Not affected 5.15.222 through 5.15.Not affected 6.1.189 through 6.1.Not affected 6.6.158 through 6.6.Not affected 6.12.112 through 6.12.Not affected 6.18.54 through 6.18.Not affected 7.2.8 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

92c715fca907686f5298220ece53423e38ba3aed to before 3d6576ed3de01e8a378397b7020e33ae3d40aa6cAffected
92c715fca907686f5298220ece53423e38ba3aed to before 86c33f740aa27e9cdc1259f0cc59c9c58f545e4bAffected
92c715fca907686f5298220ece53423e38ba3aed to before 88c450e23b8fd4f1dcd329562f5e81ef05f3d941Affected
92c715fca907686f5298220ece53423e38ba3aed to before 780716e2e019186fa6e5aad097a44b87b0b5388fAffected
92c715fca907686f5298220ece53423e38ba3aed to before d0be0516b5224eb5b6f42f8564a8deadb20ae16bAffected
92c715fca907686f5298220ece53423e38ba3aed to before daefd7ff159b0d1fb8c9e64430dcbe2aca1bdd09Affected
92c715fca907686f5298220ece53423e38ba3aed to before b9a68a9ccaada15d8dd0102c188cc6b868ff800bAffected
92c715fca907686f5298220ece53423e38ba3aed to before 9eb1a393c89a79c4210230d23e7d88d239c61d7bAffected
4cd462c7f2b6fcc208aebf44f2c831681feaa925Affected
4.9.10 to before 4.10Affected

LinuxLinux

4.10Affected
before 4.10Not affected
5.10.271 through 5.10.*Not affected
5.15.222 through 5.15.*Not affected
6.1.189 through 6.1.*Not affected
6.6.158 through 6.6.*Not affected
6.12.112 through 6.12.*Not affected
6.18.54 through 6.18.*Not affected
7.2.8 through 7.2.*Not affected
7.3 and laterNot affected

References

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