Bug 2516612 (CVE-2026-72100) - CVE-2026-72100 kernel: dm-integrity: fix a bug if the bio is out of limits
Summary: CVE-2026-72100 kernel: dm-integrity: fix a bug if the bio is out of limits
Keywords:
Status: NEW
Alias: CVE-2026-72100
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-15 06:21 UTC by OSIDB Bzimport
Modified: 2026-08-17 21:42 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-08-15 06:21:53 UTC 
In the Linux kernel, the following vulnerability has been resolved:

dm-integrity: fix a bug if the bio is out of limits

If dm_integrity_check_limits fails, the code would exit with
DM_MAPIO_KILL. However, the range would be already locked at this point,
and it wouldn't be unlocked, resulting in a deadlock. Let's move the
limit check up, so that when it exits, no resources are leaked.
Comment 1 Keith Grant 2026-08-17 21:39:53 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026081524-CVE-2026-72100-ed1a@gregkh/T
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