High 8.2Published Aug 26, 2026

CVE-2026-80549s390/vfio_ccw: Move cp cleanup out of not operational

Updated under an hour ago (Oct 27, 2026, 4:00 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: s390/vfio_ccw: Move cp cleanup out of not operational The fsm_notoper() routine is called when the device has been lost, and is (by definition) no longer operational. Since this can happen asynchronously from the normal behavior of the driver, the cleanup may happen when holding other locks in the calling sequence (notably, the cio subchannel lock). Push the cleanup of the private->cp resources to a workqueue, where it can be done out from under that lock sequence and a future patch can safely manage the locking requirements.

CVSS: 8.2 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 16, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 204b394a23ad5e30944f23518e21e844614da2ff before c9b85aa2cf73ea645e55e2c2670e0ddebfe1589b; from 204b394a23ad5e30944f23518e21e844614da2ff before f98a9890ca42f4223d2d4c50e0660af3e012fcb4; 204b394a23ad5e30944f23518e21e844614da2ff builds before 4e3301e2a651d742c05914f6074a25b8e41bce19; from 204b394a23ad5e30944f23518e21e844614da2ff before af1759d8e6e6da9ba94f30a2f92546f406899aa7; from 204b394a23ad5e30944f23518e21e844614da2ff before 56100baa0eb7055b1026dfa73e696e8066ff71fd; 204b394a23ad5e30944f23518e21e844614da2ff builds before 0c11f61a876ed6fcca53d442ed3f33ea8362a0f9	CNA record

References

References

https://git.kernel.org/stable/c/c9b85aa2cf73ea645e55e2c2670e0ddebfe1589b
https://git.kernel.org/stable/c/f98a9890ca42f4223d2d4c50e0660af3e012fcb4
https://git.kernel.org/stable/c/4e3301e2a651d742c05914f6074a25b8e41bce19
https://git.kernel.org/stable/c/af1759d8e6e6da9ba94f30a2f92546f406899aa7
https://git.kernel.org/stable/c/56100baa0eb7055b1026dfa73e696e8066ff71fd
https://git.kernel.org/stable/c/0c11f61a876ed6fcca53d442ed3f33ea8362a0f9

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.