CVE-2023-53095
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-53095
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53095.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-53095
- Related
- Published
- 2025-05-02T16:15:28Z
- Modified
- 2025-05-05T20:54:45Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/ttm: Fix a NULL pointer dereference
The LRU mechanism may look up a resource in the process of being removed from an object. The locking rules here are a bit unclear but it looks currently like res->bo assignment is protected by the LRU lock, whereas bo->resource is protected by the object lock, while clearing of bo->resource is also protected by the LRU lock. This means that if we check that bo->resource points to the LRU resource under the LRU lock we should be safe. So perform that check before deciding to swap out a bo. That avoids dereferencing a NULL bo->resource in ttmboswapout().
- References
Affected packages
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source