CVE-2026-31436

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/0e4f43779d550e559be13a5cdb763bad92c4cc99	Patch
https://git.kernel.org/stable/c/82656e8daf8de00935ae91b91bed43f4d6e0d644	Patch
https://git.kernel.org/stable/c/e1c9866173c5f8521f2d0768547a01508cb9ff27	Patch
https://git.kernel.org/stable/c/e21da2ad8844585040fe4b82be1ad2fe99d40074	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc1::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc2::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc3::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc4::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc5::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc6::::::

History

19 Oct 2026, 19:17

Type	Values Removed	Values Added
CWE		CWE-758

Information

Published : 2026-04-22 14:16

Updated : 2026-10-19 19:17

NVD link : CVE-2026-31436

Mitre link : CVE-2026-31436

CVE.ORG link : CVE-2026-31436

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

CWE-758

Reliance on Undefined, Unspecified, or Implementation-Defined Behavior

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