s390/vfio_ccw: Implement a crw lock

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-80547
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: Implement a crw lock Unlike the channel_program struct, which covers synchronous I/O submissions and asynchronous interrupts, the CRW region relies exclusively on asynchronous events coming from hardware. Implement a lock to manage the list of those payloads, to ensure they are read cohesively.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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

EPSS: 0.001280000 probability, percentile 0.027800000 (date 2026-08-27)

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

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 3f02cb2fd9d2d9e8762102886e3e4b51285797ee 3c94d4179bcc19e01b28db634c07a58b28116209 git Not specified
CNA Linux Linux affected 3f02cb2fd9d2d9e8762102886e3e4b51285797ee 0edd222730a9d7ec98368aaf1d40ee2d8d862e61 git Not specified
CNA Linux Linux affected 3f02cb2fd9d2d9e8762102886e3e4b51285797ee a3d60ae24183eee352c8e87a0ff94c97cd87f156 git Not specified
CNA Linux Linux affected 3f02cb2fd9d2d9e8762102886e3e4b51285797ee 49fa26b0df009dc1f420980bd71780e70615b83b git Not specified
CNA Linux Linux affected 3f02cb2fd9d2d9e8762102886e3e4b51285797ee 7902be374cbfc11c3435e1e87bf22195bf06a558 git Not specified
CNA Linux Linux affected 3f02cb2fd9d2d9e8762102886e3e4b51285797ee c76c4ee72bfc3824f4f491f18ed0323bf2e2daf9 git Not specified
CNA Linux Linux affected 3f02cb2fd9d2d9e8762102886e3e4b51285797ee 16b0798024c0e9117e395829ddbbe70981c79d9c git Not specified
CNA Linux Linux affected 5.8 Not specified
CNA Linux Linux unaffected 5.8 semver Not specified
CNA Linux Linux unaffected 5.15.218 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.185 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.154 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/16b0798024c0e9117e395829ddbbe70981c79d9c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a3d60ae24183eee352c8e87a0ff94c97cd87f156 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/49fa26b0df009dc1f420980bd71780e70615b83b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/3c94d4179bcc19e01b28db634c07a58b28116209 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0edd222730a9d7ec98368aaf1d40ee2d8d862e61 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c76c4ee72bfc3824f4f491f18ed0323bf2e2daf9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7902be374cbfc11c3435e1e87bf22195bf06a558 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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