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CVE PROGRAM SOURCE RECORD5.5 Medium

CVE-2024-50081

blk-mq: setup queue ->tag_set before initializing hctx

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: blk-mq: setup queue ->tag_set before initializing hctx Commit 7b815817aa58 ("blk-mq: add helper for checking if one CPU is mapped to specified hctx") needs to check queue mapping via tag set in hctx's cpuhp handler. However, q->tag_set may not be setup yet when the cpuhp handler is enabled, then kernel oops is triggered. Fix the issue by setup queue tag_set before initializing hctx.

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

  • ff2d6ef107b1b1ec6b469073b4dda0dc744e343c to < 73d964ce4bc8b4de88a7c2e40df494f0d5cd8950affected
  • dbd0829d2458d7292b82bfc9d02cce23935b198f to < 25466e5b4bb11a8415ce8d0be89ab77135f7e444affected
  • 7b815817aa58d2e2101feb2fcf64c60cae0b2695 to < d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87affected
  • 7b815817aa58d2e2101feb2fcf64c60cae0b2695 to < c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95affected

Linux Linux

Default version status: affected

  • 6.10affected
  • 0 to < 6.10unaffected
  • 6.11.5 to ≤ 6.11.*unaffected
  • 6.12 to ≤ *unaffected

References