CVE-2023-52787: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

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

• Linux Linux Kernel: from 5.16, before 6.1.72 (fixed in 6.1.72); from 6.2, before 6.5.13 (fixed in 6.5.13); from 6.6, before 6.6.3 (fixed in 6.6.3); version 6.7 only

Published 2024-05-21. Last modified 2026-06-17.