Bug 2486994 (CVE-2026-46327) - CVE-2026-46327 kernel: dm: fix unlocked test for dm_suspended_md
Summary: CVE-2026-46327 kernel: dm: fix unlocked test for dm_suspended_md
Keywords:
Status: NEW
Alias: CVE-2026-46327
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-09 14:01 UTC by OSIDB Bzimport
Modified: 2026-06-09 16:49 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-06-09 14:01:15 UTC
In the Linux kernel, the following vulnerability has been resolved:

dm: fix unlocked test for dm_suspended_md

The function dm_blk_report_zones tests if the device is suspended with
the "dm_suspended_md" call. However, this function is called without
holding any locks, so the device may be suspended just after it.

Move the call to dm_suspended_md after dm_get_live_table, so that the
device can't be suspended after the suspended state was tested.


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