Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected fee3ff99bc67604fba77f19da0106f3ec52b1956 before eef16bfdb212da60f5144689f2967fb25b051a2b; affected fee3ff99bc67604fba77f19da0106f3ec52b1956 before d2dfbc0e3b7a04c2d941421a958dc31c897fb204; affected fee3ff99bc67604fba77f19da0106f3ec52b1956 before 34cf99c250d5cd2530b93a57b0de31d3aaf8685b |
| Linux / Linux | affected 5.13; unaffected 0 before 5.13; unaffected 6.1.56 through 6.1.*; unaffected 6.5.6 through 6.5.*; unaffected 6.6 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/eef16bfdb212da60f5144689f2967fb25b051a2b
- https://git.kernel.org/stable/c/d2dfbc0e3b7a04c2d941421a958dc31c897fb204
- https://git.kernel.org/stable/c/34cf99c250d5cd2530b93a57b0de31d3aaf8685b
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.