CVE-2026-31436

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Source
https://cve.org/CVERecord?id=CVE-2026-31436
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31436.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-31436
Downstream
Published
2026-04-22T13:53:35.693Z
Modified
2026-05-21T03:54:16.056215655Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
dmaengine: idxd: fix possible wrong descriptor completion in llist_abort_desc()
Details

In the Linux kernel, the following vulnerability has been resolved:

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

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 listforeachentrysafe() loop.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31436.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
aa8d18becc0c14aa3eb46d6d1b81450446e11b87
Fixed
e21da2ad8844585040fe4b82be1ad2fe99d40074
Fixed
82656e8daf8de00935ae91b91bed43f4d6e0d644
Fixed
0e4f43779d550e559be13a5cdb763bad92c4cc99
Fixed
e1c9866173c5f8521f2d0768547a01508cb9ff27

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31436.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.8.0
Fixed
6.12.80
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.21
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
6.19.11

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31436.json"