CVE-2026-80549High· 8.2▾ TwilightIn 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. …
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 45.1 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= 204b394a23ad5e30944f23518e21e844614da2ff < c9b85aa2cf73ea645e55e2c2670e0ddebfe1589bLinux >= 204b394a23ad5e30944f23518e21e844614da2ff < f98a9890ca42f4223d2d4c50e0660af3e012fcb4Linux >= 204b394a23ad5e30944f23518e21e844614da2ff < 4e3301e2a651d742c05914f6074a25b8e41bce19Linux >= 204b394a23ad5e30944f23518e21e844614da2ff < af1759d8e6e6da9ba94f30a2f92546f406899aa7Linux >= 204b394a23ad5e30944f23518e21e844614da2ff < 56100baa0eb7055b1026dfa73e696e8066ff71fdLinux >= 204b394a23ad5e30944f23518e21e844614da2ff < 0c11f61a876ed6fcca53d442ed3f33ea8362a0f9Linux 6.0Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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