Bug 2554919 (CVE-2026-98533) - CVE-2026-98533 kernel: ipe: protect the dm-verity root hash with RCU
Summary: CVE-2026-98533 kernel: ipe: protect the dm-verity root hash with RCU
Keywords:
Status: NEW
Alias: CVE-2026-98533
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-18 15:32 UTC by OSIDB Bzimport
Modified: 2026-10-19 18:47 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-10-18 15:32:35 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ipe: protect the dm-verity root hash with RCU

ipe_bdev_setintegrity() frees the old root hash when dm-verity publishes
a new one on ->preresume, while policy evaluation can still be
dereferencing it.

Protect the root hash with RCU. The evaluation path already runs under
rcu_read_lock().

[FW: remove model name according to latest guideline]
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