CVE-2023-52731
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-52731
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52731.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-52731
- Related
- Published
- 2024-05-21T16:15:13Z
- Modified
- 2024-09-18T01:00:22Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
fbdev: Fix invalid page access after closing deferred I/O devices
When a fbdev with deferred I/O is once opened and closed, the dirty pages still remain queued in the pageref list, and eventually later those may be processed in the delayed work. This may lead to a corruption of pages, hitting an Oops.
This patch makes sure to cancel the delayed work and clean up the pageref list at closing the device for addressing the bug. A part of the cleanup code is factored out as a new helper function that is called from the common fb_release().
- 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