CVE-2023-53263

drm/nouveau/disp: fix use-after-free in error handling of nouveau_connector_create

State: Published
Severity: 7.8 High
Published: Sep 16, 2025
Updated: Aug 5, 2026
Reserved: Sep 16, 2025

Description

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

drm/nouveau/disp: fix use-after-free in error handling of nouveau_connector_create

We can't simply free the connector after calling drm_connector_init on it. We need to clean up the drm side first.

It might not fix all regressions from commit 2b5d1c29f6c4 ("drm/nouveau/disp: PIOR DP uses GPIO for HPD, not PMGR AUX interrupts"), but at least it fixes a memory corruption in error handling related to that commit.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-416 Use After Free

Affected Products

Product	Versions
LinuxLinux	95983aea80038539ebc70e41e73e9bb4eabd1a92 to before 3f27451c9f29d5ed00232968680c7838a44dcac7Affected 95983aea80038539ebc70e41e73e9bb4eabd1a92 to before 872feeecd08c81d212a52211d212897b8a857544Affected 95983aea80038539ebc70e41e73e9bb4eabd1a92 to before 1b254b791d7b7dea6e8adc887fbbd51746d8bb27Affected
LinuxLinux	6.0Affected before 6.0Not affected 6.1.47 through 6.1.Not affected 6.4.12 through 6.4.Not affected 6.5 and laterNot affected

References

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