CVE-2025-40001

scsi: mvsas: Fix use-after-free bugs in mvs_work_queue

At a glance

Severity
Not available
EPSS
EPSS 0.26 % · percentile 17 (2026-10-27)
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: mvsas: Fix use-after-free bugs in mvs_work_queue During the detaching of Marvell's SAS/SATA controller, the original code calls cancel_delayed_work() in mvs_free() to cancel the delayed work item mwq->work_q. However, if mwq->work_q is already running, the cancel_delayed_work() may fail to cancel it. This can lead to use-after-free scenarios where mvs_free() frees the mvs_info while mvs_work_queue() is still executing and attempts to access the already-freed mvs_info. A typical race condition is illustrated below: CPU 0 (remove) | CPU 1 (delayed work callback) mvs_pci_remove() | mvs_free() | mvs_work_queue() cancel_delayed_work() | kfree(mvi) | | mvi-> // UAF Replace cancel_delayed_work() with cancel_delayed_work_sync() to ensure that the delayed work item is properly canceled and any executing delayed work item completes before the mvs_info is deallocated. This bug was found by static analysis.

European references

CERT-FR advisories

Affected products

ProductVersions
Linux · Linuxaffected 20b09c2992fefbe78f8cede7b404fb143a413c52 < a6f68f219d4d4b92d7c781708d4afc4cc42961ec ; affected 20b09c2992fefbe78f8cede7b404fb143a413c52 < aacd1777d4a795c387a20b9ca776e2c1225d05d7 ; affected 20b09c2992fefbe78f8cede7b404fb143a413c52 < 6ba7e73cafd155a5d3abf560d315f0bab2b9d89f ; affected 20b09c2992fefbe78f8cede7b404fb143a413c52 < c2c35cb2a31844f84f21ab364b38b4309d756d42 ; affected 20b09c2992fefbe78f8cede7b404fb143a413c52 < 3c90f583d679c81a5a607a6ae0051251b6dee35b ; affected 20b09c2992fefbe78f8cede7b404fb143a413c52 < 00d3af40b158ebf7c7db2b3bbb1598a54bf28127
Linux · Linuxaffected 2.6.31 ; unaffected 0 < 2.6.31 ; unaffected 5.4.301 ≤ 5.4.* ; unaffected 5.10.246 ≤ 5.10.* ; unaffected 5.15.195 ≤ 5.15.* ; unaffected 6.1.157 ≤ 6.1.*

References

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD