Use After Free in Linux
CVE-2023-52913
In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix potential context UAFs gem_context_register() makes the context visible to userspace, and which point a separate thread can trigger the I915_GEM_CONTEXT_DESTROY ioctl. So we need to ensure that nothing uses the ctx ptr after this. And we need to ensure that adding the ctx to the xarray is the *last* thing that gem_context_register() does with the ctx pointer. [tursulin: Stable and fixes tags add/tidy.] (cherry picked from commit bed4b455cf5374e68879be56971c1da563bcd90c)
Vulnerability class: Use-After-Free
EPSS: 0.002 (15.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux — versions eb4dedae920a07c485328af3da2202ec5184fb17, 5.10, 0
- Linux Linux_kernel — versions 6.2
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2023-52913?
- CVE-2023-52913 is a high-severity vulnerability in Linux, classified under Use After Free. CVSS score: 7.8/10. Published 2024-08-21.
- How severe is CVE-2023-52913?
- High severity. CVSS v3 base score is 7.8 out of 10.