What’s Vulnerable › Vulnerabilities

CVE-2023-53263: drm/nouveau/disp: fix use-after-free in error handling of nouveau_connector_create

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-16 · updated 2026-06-17
• Weakness: CWE-416

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 products

• Linux kernel: from 6.0 before 6.1.47; from 6.2 before 6.4.12; 6.5-rc1, 6.5-rc2, 6.5-rc3, 6.5-rc4, 6.5-rc5, 6.5-rc6 — fixed in 6.1.47, 6.4.12

How to fix

Upgrade to a fixed version: Linux kernel 6.1.47, 6.4.12. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1b254b791d7b7dea6e8adc887fbbd51746d8bb27
• https://git.kernel.org/stable/c/3f27451c9f29d5ed00232968680c7838a44dcac7
• https://git.kernel.org/stable/c/872feeecd08c81d212a52211d212897b8a857544

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