s390/vfio_ccw: Move cp cleanup out of not operational

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-80549
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-26 15:17:09 UTC
Updated2026-08-27 13:18:39 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 8.2 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary8.2HIGHCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
3.1CNADECLARED8.2HIGHCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 204b394a23ad5e30944f23518e21e844614da2ff c9b85aa2cf73ea645e55e2c2670e0ddebfe1589b git Not specified
CNA Linux Linux affected 204b394a23ad5e30944f23518e21e844614da2ff f98a9890ca42f4223d2d4c50e0660af3e012fcb4 git Not specified
CNA Linux Linux affected 204b394a23ad5e30944f23518e21e844614da2ff 4e3301e2a651d742c05914f6074a25b8e41bce19 git Not specified
CNA Linux Linux affected 204b394a23ad5e30944f23518e21e844614da2ff af1759d8e6e6da9ba94f30a2f92546f406899aa7 git Not specified
CNA Linux Linux affected 204b394a23ad5e30944f23518e21e844614da2ff 56100baa0eb7055b1026dfa73e696e8066ff71fd git Not specified
CNA Linux Linux affected 204b394a23ad5e30944f23518e21e844614da2ff 0c11f61a876ed6fcca53d442ed3f33ea8362a0f9 git Not specified
CNA Linux Linux affected 6.0 Not specified
CNA Linux Linux unaffected 6.0 semver Not specified
CNA Linux Linux unaffected 6.1.185 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.153 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.105 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.46 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.10 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/af1759d8e6e6da9ba94f30a2f92546f406899aa7 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0c11f61a876ed6fcca53d442ed3f33ea8362a0f9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c9b85aa2cf73ea645e55e2c2670e0ddebfe1589b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/56100baa0eb7055b1026dfa73e696e8066ff71fd 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f98a9890ca42f4223d2d4c50e0660af3e012fcb4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4e3301e2a651d742c05914f6074a25b8e41bce19 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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