CVE-2026-46327

HIGH7.8

dm: fix unlocked test for dm_suspended_md

Published Jun 9, 2026

Modified 1 weeks ago

Details

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.

References

WEB

https://git.kernel.org/stable/c/175ac0a6115400278d3900f5a04a58b17b3f6cd0

WEB

https://git.kernel.org/stable/c/24c405fdbe215c45e57bba672cc42859038491ee

WEB

https://git.kernel.org/stable/c/7a3385e97af2b6f485fef11e82d8c29adee4be93

WEB

https://git.kernel.org/stable/c/d809a36692ee1394cac85ce6ba7cf8ea58da5812

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-46327

CVSS Analysis

CVSS v3.1

7.8

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

7.8/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Ecosystems

Timeline

PublishedJun 9, 2026

ModifiedJun 14, 2026