PCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup

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Summary

CVECVE-2026-31595
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-24 15:16:37 UTC
Updated2026-06-01 17:16:50 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup Disable the delayed work before clearing BAR mappings and doorbells to avoid running the handler after resources have been torn down. Unable to handle kernel paging request at virtual address ffff800083f46004 [...] Internal error: Oops: 0000000096000007 [#1] SMP [...] Call trace: epf_ntb_cmd_handler+0x54/0x200 [pci_epf_vntb] (P) process_one_work+0x154/0x3b0 worker_thread+0x2c8/0x400 kthread+0x148/0x210 ret_from_fork+0x10/0x20

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

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

EPSS: 0.000180000 probability, percentile 0.048130000 (date 2026-04-27)

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected e35f56bb03304abc92c928b641af41ca372966bb b2eb405bbced3a6e772545e1b74dbde37cee1f8f git Not specified
CNA Linux Linux affected e35f56bb03304abc92c928b641af41ca372966bb ceb73484e7204f661f770069ecdf35f6e941879c git Not specified
CNA Linux Linux affected e35f56bb03304abc92c928b641af41ca372966bb 6773cc24c004930903a57761132c1e7728907f8f git Not specified
CNA Linux Linux affected e35f56bb03304abc92c928b641af41ca372966bb 9921cce25bfe4021f6e55ca995351eb967165297 git Not specified
CNA Linux Linux affected e35f56bb03304abc92c928b641af41ca372966bb 5999067140c67530a6cb6f41a8471596e60452cb git Not specified
CNA Linux Linux affected e35f56bb03304abc92c928b641af41ca372966bb fbb6c353fa2fb5f5f990eda034a1074b0356127e git Not specified
CNA Linux Linux affected e35f56bb03304abc92c928b641af41ca372966bb d799984233a50abd2667a7d17a9a710a3f10ebe2 git Not specified
CNA Linux Linux affected e2b6ef72b7aea9d7d480d2df499bcd1c93247abb git Not specified
CNA Linux Linux affected 5.15.153 5.16 semver Not specified
CNA Linux Linux affected 6.0 Not specified
CNA Linux Linux unaffected 6.0 semver Not specified
CNA Linux Linux unaffected 6.1.175 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.136 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.83 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.24 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.14 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0.1 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/5999067140c67530a6cb6f41a8471596e60452cb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b2eb405bbced3a6e772545e1b74dbde37cee1f8f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ceb73484e7204f661f770069ecdf35f6e941879c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/9921cce25bfe4021f6e55ca995351eb967165297 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/fbb6c353fa2fb5f5f990eda034a1074b0356127e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/d799984233a50abd2667a7d17a9a710a3f10ebe2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/6773cc24c004930903a57761132c1e7728907f8f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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