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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2022-49413

bfq: Update cgroup information before merging bio

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: bfq: Update cgroup information before merging bio When the process is migrated to a different cgroup (or in case of writeback just starts submitting bios associated with a different cgroup) bfq_merge_bio() can operate with stale cgroup information in bic. Thus the bio can be merged to a request from a different cgroup or it can result in merging of bfqqs for different cgroups or bfqqs of already dead cgroups and causing possible use-after-free issues. Fix the problem by updating cgroup information in bfq_merge_bio().

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

  • e21b7a0b988772e82e7147e1c659a5afe2ae003c to < da9f3025d595956410ceaab2bea01980d7775948affected
  • e21b7a0b988772e82e7147e1c659a5afe2ae003c to < b06691af08b41dfd81052a3362514d9827b44bb1affected
  • e21b7a0b988772e82e7147e1c659a5afe2ae003c to < e8821f45612f2e6d9adb9c6ba0fb4184f57692aaaffected
  • e21b7a0b988772e82e7147e1c659a5afe2ae003c to < d9165200c5627a2cf4408eefabdf0058bdf95e1aaffected
  • e21b7a0b988772e82e7147e1c659a5afe2ae003c to < 2a1077f17169a6059992a0bbdb330e0abad1e6d9affected
  • e21b7a0b988772e82e7147e1c659a5afe2ae003c to < ea591cd4eb270393810e7be01feb8fde6a34fbbeaffected

Linux Linux

Default version status: affected

  • 4.12affected
  • 0 to < 4.12unaffected
  • 5.4.198 to ≤ 5.4.*unaffected
  • 5.10.121 to ≤ 5.10.*unaffected
  • 5.15.46 to ≤ 5.15.*unaffected
  • 5.17.14 to ≤ 5.17.*unaffected
  • 5.18.3 to ≤ 5.18.*unaffected
  • 5.19 to ≤ *unaffected

References