VYPR
Unrated severityNVD Advisory· Published May 21, 2024· Updated May 4, 2025

blk-mq: make sure active queue usage is held for bio_integrity_prep()

CVE-2023-52787

Description

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

blk-mq: make sure active queue usage is held for bio_integrity_prep()

blk_integrity_unregister() can come if queue usage counter isn't held for one bio with integrity prepared, so this request may be completed with calling profile->complete_fn, then kernel panic.

Another constraint is that bio_integrity_prep() needs to be called before bio merge.

Fix the issue by:

  • call bio_integrity_prep() with one queue usage counter grabbed reliably
  • call bio_integrity_prep() before bio merge

Affected products

95

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

4

News mentions

0

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