CVE-2026-31436

CRITICAL

dmaengine: idxd: fix possible wrong descriptor completion in llist_abort_desc()

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix possible wrong descriptor completion in llist_abort_desc() At the end of this function, d is the traversal cursor of flist, but the code completes found instead. This can lead to issues such as NULL pointer dereferences, double completion, or descriptor leaks. Fix this by completing d instead of found in the final list_for_each_entry_safe() loop.

Scores

CVSS v3 9.8
EPSS 0.0006
EPSS Percentile 20.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-476
Status published
Products (12)
Linux/Linux < 6.8
Linux/Linux 6.12.80 - 6.12.*
Linux/Linux 6.18.21 - 6.18.*
Linux/Linux 6.19.11 - 6.19.*
Linux/Linux 6.8
Linux/Linux 7.0
Linux/Linux aa8d18becc0c14aa3eb46d6d1b81450446e11b87 - 0e4f43779d550e559be13a5cdb763bad92c4cc99
Linux/Linux aa8d18becc0c14aa3eb46d6d1b81450446e11b87 - 82656e8daf8de00935ae91b91bed43f4d6e0d644
Linux/Linux aa8d18becc0c14aa3eb46d6d1b81450446e11b87 - e1c9866173c5f8521f2d0768547a01508cb9ff27
Linux/Linux aa8d18becc0c14aa3eb46d6d1b81450446e11b87 - e21da2ad8844585040fe4b82be1ad2fe99d40074
... and 2 more
Published Apr 22, 2026
Tracked Since Apr 22, 2026