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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2024-38384

blk-cgroup: fix list corruption from reorder of WRITE ->lqueued

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix list corruption from reorder of WRITE ->lqueued __blkcg_rstat_flush() can be run anytime, especially when blk_cgroup_bio_start is being executed. If WRITE of `->lqueued` is re-ordered with READ of 'bisc->lnode.next' in the loop of __blkcg_rstat_flush(), `next_bisc` can be assigned with one stat instance being added in blk_cgroup_bio_start(), then the local list in __blkcg_rstat_flush() could be corrupted. Fix the issue by adding one barrier.

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

  • 3b8cc6298724021da845f2f9fd7dd4b6829a6817 to < 714e59b5456e4d6e4295a9968c564abe193f461caffected
  • 3b8cc6298724021da845f2f9fd7dd4b6829a6817 to < 785298ab6b802afa75089239266b6bbea590809caffected
  • 3b8cc6298724021da845f2f9fd7dd4b6829a6817 to < d0aac2363549e12cc79b8e285f13d5a9f42fd08eaffected

Linux Linux

Default version status: affected

  • 6.2affected
  • 0 to < 6.2unaffected
  • 6.6.33 to ≤ 6.6.*unaffected
  • 6.9.4 to ≤ 6.9.*unaffected
  • 6.10 to ≤ *unaffected

References