7.8

CVE-2025-38369

dmaengine: idxd: Check availability of workqueue allocated by idxd wq driver before using

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

dmaengine: idxd: Check availability of workqueue allocated by idxd wq driver before using

Running IDXD workloads in a container with the /dev directory mounted can
trigger a call trace or even a kernel panic when the parent process of the
container is terminated.

This issue occurs because, under certain configurations, Docker does not
properly propagate the mount replica back to the original mount point.

In this case, when the user driver detaches, the WQ is destroyed but it
still calls destroy_workqueue() attempting to completes all pending work.
It's necessary to check wq->wq and skip the drain if it no longer exists.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.6 < 6.6.96
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.36
Linux ≫ Linux Kernel Version >= 6.13 < 6.15.5
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.049
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 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-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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/17502e7d7b7113346296f6758324798d536c31fd
Patch
https://git.kernel.org/stable/c/98fd66c8ba77e3a7137575f610271014bc0e701f
Patch
https://git.kernel.org/stable/c/aee7a7439f8c0884da87694a401930204a57128f
Patch
https://git.kernel.org/stable/c/e0051a3daa8b2cb318b03b2f9317c3e40855847a
Patch