CVE-2023-52576
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-52576
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52576.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-52576
- Downstream
- Related
- Published
- 2024-03-02T22:15:49Z
- Modified
- 2025-08-09T19:01:27Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
x86/mm, kexec, ima: Use memblockfreelate() from imafreekexec_buffer()
The code calling imafreekexecbuffer() runs long after the memblock allocator has already been torn down, potentially resulting in a use after free in memblockisolate_range().
With KASAN or KFENCE, this use after free will result in a BUG from the idle task, and a subsequent kernel panic.
Switch imafreekexecbuffer() over to memblockfree_late() to avoid that bug.
- References