scsi: mvsas: Fix use-after-free bugs in mvs_work_queue
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
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- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 2 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 2.6.31 and later | 5.4.301, 5.10.246, 5.15.195, 6.1.157, 6.6.113, 6.12.54, 6.17.4, 6.18 | Patch available | CNA |
- Linux VendorLinux Affected 2.6.31 and later Fixed in 5.4.301, 5.10.246, 5.15.195, 6.1.157, 6.6.113, 6.12.54, 6.17.4, 6.18 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.4.301, 5.10.246, 5.15.195, 6.1.157, 6.6.113, 6.12.54, 6.17.4, 6.18
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
Not affected: 3 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2025-40001
- 2026-10-03 Alias added: GHSA-q5hm-2p5x-hm8x
References
Other 8
- https://git.kernel.org/stable/c/a6f68f219d4d4b92d7c781708d4afc4cc42961ec
- https://git.kernel.org/stable/c/aacd1777d4a795c387a20b9ca776e2c1225d05d7
- https://git.kernel.org/stable/c/6ba7e73cafd155a5d3abf560d315f0bab2b9d89f
- https://git.kernel.org/stable/c/c2c35cb2a31844f84f21ab364b38b4309d756d42
- https://git.kernel.org/stable/c/3c90f583d679c81a5a607a6ae0051251b6dee35b
- https://git.kernel.org/stable/c/00d3af40b158ebf7c7db2b3bbb1598a54bf28127
- https://git.kernel.org/stable/c/feb946d2fc9dc754bf3d594d42cd228860ff8647
- https://git.kernel.org/stable/c/60cd16a3b7439ccb699d0bf533799eeb894fd217
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Sources
- CVE-2025-40001 · CVE Program
- CVE-2025-40001 · NVD
- FIRST EPSS
- GHSA-q5hm-2p5x-hm8x · GitHub Advisory Database · CC BY 4.0
- CVE-2025-40001 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences