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CVE-2023-53263

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

HIGH
7.8
CVSS Score
Published: September 16, 2025 at 08:06 AM UTC
Updated: August 5, 2026 at 10:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.0 ≤ v < 6.1.476.0 ≤ v < 6.4.126.0 ≤ v < 6.56.2 ≤ v < 6.4.126.06.5 rc16.5 rc26.5 rc36.5 rc46.5 rc56.5 rc695983aea80038539ebc70e41e73e9bb4eabd1a92
Vendor states this is fixed in 1b254b791d7b7dea6e8adc887fbbd51746d8bb27 (fixed)
Vendor states this is fixed in 3f27451c9f29d5ed00232968680c7838a44dcac7 (fixed)
Vendor states this is fixed in 872feeecd08c81d212a52211d212897b8a857544 (fixed)
Vendor states this is fixed in 6.0 (unaffected)
Vendor states this is fixed in 6.1.47 (unaffected)
Vendor states this is fixed in 6.4.12 (unaffected)
Vendor states this is fixed in 6.5 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/1b254b791d7b7dea6e8adc887fbbd51746d8bb27
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/3f27451c9f29d5ed00232968680c7838a44dcac7
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/872feeecd08c81d212a52211d212897b8a857544

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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