CVE-2026-31442
7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
Description
In the Linux kernel, the following vulnerability has been resolved:
dmaengine: idxd: Fix possible invalid memory access after FLR
In the case that the first Function Level Reset (FLR) concludes
correctly, but in the second FLR the scratch area for the saved
configuration cannot be allocated, it's possible for a invalid memory
access to happen.
Always set the deallocated scratch area to NULL after FLR completes.
Affected (7)
Products: Linux: Linux Kernel
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| 6.14 ≤ version < 6.18.21 |
Related CWEs
CWE-125
Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
References (3)
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Timeline
No history available yet.