s390/vfio_ccw: Move cp cleanup out of not operational
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.
CVE-2026-80549
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-80549
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "204b394a23ad5e30944f23518e21e844614da2ff",
"lessThan": "c9b85aa2cf73ea645e55e2c2670e0ddebfe1589b",
"versionType": "git"
},
{
"status": "affected",
"version": "204b394a23ad5e30944f23518e21e844614da2ff",
"lessThan": "f98a9890ca42f4223d2d4c50e0660af3e012fcb4",
"versionType": "git"
},
{
"status": "affected",
"version": "204b394a23ad5e30944f23518e21e844614da2ff",
"lessThan": "4e3301e2a651d742c05914f6074a25b8e41bce19",
"versionType": "git"
},
{
"status": "affected",
"version": "204b394a23ad5e30944f23518e21e844614da2ff",
"lessThan": "af1759d8e6e6da9ba94f30a2f92546f406899aa7",
"versionType": "git"
},
{
"status": "affected",
"version": "204b394a23ad5e30944f23518e21e844614da2ff",
"lessThan": "56100baa0eb7055b1026dfa73e696e8066ff71fd",
"versionType": "git"
},
{
"status": "affected",
"version": "204b394a23ad5e30944f23518e21e844614da2ff",
"lessThan": "0c11f61a876ed6fcca53d442ed3f33ea8362a0f9",
"versionType": "git"
}
],
"programFiles": [
"drivers/s390/cio/vfio_ccw_drv.c",
"drivers/s390/cio/vfio_ccw_fsm.c",
"drivers/s390/cio/vfio_ccw_ops.c",
"drivers/s390/cio/vfio_ccw_private.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.185",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.153",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.105",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.46",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.10",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/s390/cio/vfio_ccw_drv.c",
"drivers/s390/cio/vfio_ccw_fsm.c",
"drivers/s390/cio/vfio_ccw_ops.c",
"drivers/s390/cio/vfio_ccw_private.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-80549
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #34318 · Revision 1
- Added to Heist Feed
- Publisher date