CVE-2023-53263 — Use After Free in Linux

CWE-416 — Use After FreeCWE-763 — Release of Invalid Pointer or Reference5 documents5 sources
Severity
7.8HIGHNVD
EPSS
0.0%
top 96.14%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedSep 16

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages4 packages

▶NVDlinux/linux_kernel6.0 — 6.1.47+2
▶Debianlinux/linux_kernel< 6.1.52-1+2
▶CVEListV5linux/linux95983aea80038539ebc70e41e73e9bb4eabd1a92 — 3f27451c9f29d5ed00232968680c7838a44dcac7+3
▶debiandebian/linux< linux 6.1.52-1 (bookworm)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-wrc3-5873-3ff6: In the Linux kernel, the following vulnerability has been resolved: drm/nouveau/disp: fix use-after-free in error handling of nouveau_connector_creat↗2025-09-16
▶
OSV
CVE-2023-53263: In the Linux kernel, the following vulnerability has been resolved: drm/nouveau/disp: fix use-after-free in error handling of nouveau_connector_create↗2025-09-16
▶

📋Vendor Advisories

2
Red Hat
kernel: drm/nouveau/disp: fix use-after-free in error handling of nouveau_connector_create↗2025-09-16
▶
Debian
CVE-2023-53263: linux - In the Linux kernel, the following vulnerability has been resolved: drm/nouveau...↗2023
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CVE-2023-53263 — Use After Free in Linux | cvebase