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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2024-41032

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

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Status
Published
Published
Updated
Assigning organization
Linux

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 062eacf57ad91b5c272f89dc964fd6dd9715ea7d to < 28acd531c9a365dac01b32e6bc54aed8c1429bcbaffected
  • 062eacf57ad91b5c272f89dc964fd6dd9715ea7d to < 47f9b6e49b422392fb0e348a65eb925103ba1882affected
  • 062eacf57ad91b5c272f89dc964fd6dd9715ea7d to < a34acf30b19bc4ee3ba2f1082756ea2604c19138affected

Linux Linux

Default version status: affected

  • 6.4affected
  • 0 to < 6.4unaffected
  • 6.6.41 to ≤ 6.6.*unaffected
  • 6.9.10 to ≤ 6.9.*unaffected
  • 6.10 to ≤ *unaffected

References