7.8

CVE-2026-31442

dmaengine: idxd: Fix possible invalid memory access after FLR

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.14 < 6.18.21
Linux ≫ Linux Kernel Version >= 6.19 < 6.19.11
Linux ≫ Linux Kernel Version7.0 Updaterc1
Linux ≫ Linux Kernel Version7.0 Updaterc2
Linux ≫ Linux Kernel Version7.0 Updaterc3
Linux ≫ Linux Kernel Version7.0 Updaterc4
Linux ≫ Linux Kernel Version7.0 Updaterc5
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.13% 0.027
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

https://git.kernel.org/stable/c/504c0e6751001ac46917c73e703f2b1b92cfc026
Patch
https://git.kernel.org/stable/c/867d0c801f21370d561420fa32f2ea1a7dc3a22d
Patch
https://git.kernel.org/stable/c/d6077df7b75d26e4edf98983836c05d00ebabd8d
Patch