CVE-2023-52576
- Source
- https://cve.org/CVERecord?id=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
- 2024-03-02T21:59:44Z
- Modified
- 2026-08-12T03:51:42Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
x86/mm, kexec, ima: Use memblock_free_late() from ima_free_kexec_buffer()
The code calling ima_free_kexec_buffer() runs long after the memblock allocator has already been torn down, potentially resulting in a use after free in memblock_isolate_range().
With KASAN or KFENCE, this use after free will result in a BUG from the idle task, and a subsequent kernel panic.
Switch ima_free_kexec_buffer() over to memblock_free_late() to avoid that bug.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52576.json" }- References
-
- https://git.kernel.org/stable/c/34cf99c250d5cd2530b93a57b0de31d3aaf8685b
- https://git.kernel.org/stable/c/d2dfbc0e3b7a04c2d941421a958dc31c897fb204
- https://git.kernel.org/stable/c/eef16bfdb212da60f5144689f2967fb25b051a2b
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52576.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-52576
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git