VYPR
← All advisories
Unrated severityNVD Advisory· Published Jul 29, 2024· Updated May 4, 2025

mm: vmalloc: check if a hash-index is in cpu_possible_mask

CVE-2024-41032

Description

In the Linux kernel, the following vulnerability has been resolved:

mm: vmalloc: check if a hash-index is in cpu_possible_mask

The problem is that there are systems where cpu_possible_mask has gaps between set CPUs, for example SPARC. In this scenario addr_to_vb_xa() hash function can return an index which accesses to not-possible and not setup CPU area using per_cpu() macro. This results in an oops on SPARC.

A per-cpu vmap_block_queue is also used as hash table, incorrectly assuming the cpu_possible_mask has no gaps. Fix it by adjusting an index to a next possible CPU.

Affected products

50

Patches

3
a34acf30b19b
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
47f9b6e49b42
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit
28acd531c9a3
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv
commit

Vulnerability mechanics

Generated on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.

References

3

News mentions

0

No linked articles in our index yet.