CVE-2026-31436
Critical
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.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Linux Kernel
PublishedApr 22, 2026
First seenApr 22, 2026
Weakness typeCWE-758CWE-758
How to fix
Update
- linux linux_kernel6.12.80, 6.18.21, 6.19.11 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.8 ≤ v < 6.12.80, 6.13 ≤ v < 6.18.21, 6.19 ≤ v < 6.19.11, 7.0 | 6.12.80, 6.18.21, 6.19.11 |
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