PCI: endpoint: pci-epf-vntb: Remove duplicate resource teardown

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-31594
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: Remove duplicate resource teardown epf_ntb_epc_destroy() duplicates the teardown that the caller is supposed to perform later. This leads to an oops when .allow_link fails or when .drop_link is performed. The following is an example oops of the former case: Unable to handle kernel paging request at virtual address dead000000000108 [...] [dead000000000108] address between user and kernel address ranges Internal error: Oops: 0000000096000044 [#1] SMP [...] Call trace: pci_epc_remove_epf+0x78/0xe0 (P) pci_primary_epc_epf_link+0x88/0xa8 configfs_symlink+0x1f4/0x5a0 vfs_symlink+0x134/0x1d8 do_symlinkat+0x88/0x138 __arm64_sys_symlinkat+0x74/0xe0 [...] Remove the helper, and drop pci_epc_put(). EPC device refcounting is tied to the configfs EPC group lifetime, and pci_epc_put() in the .drop_link path is sufficient.

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 0.046080000 (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 e2b6ef72b7aea9d7d480d2df499bcd1c93247abb 305a0674bc552bfcc3231e23fb91cf4f62aec168 git Not specified
CNA Linux Linux affected e35f56bb03304abc92c928b641af41ca372966bb b261027a1a235d8925e332363f23135a0eff2b35 git Not specified
CNA Linux Linux affected e35f56bb03304abc92c928b641af41ca372966bb e238ab12556b00f3b4d8b870b32ba1e4f4d4ebc2 git Not specified
CNA Linux Linux affected e35f56bb03304abc92c928b641af41ca372966bb 73bf218de28d039126dc64281d2b47dd3c46a0a3 git Not specified
CNA Linux Linux affected e35f56bb03304abc92c928b641af41ca372966bb cec9ead73ab154a7953f6ab8dd5127e0d6bbf95a git Not specified
CNA Linux Linux affected e35f56bb03304abc92c928b641af41ca372966bb 478e776101592eb63298714e96823ef78a3295ec git Not specified
CNA Linux Linux affected e35f56bb03304abc92c928b641af41ca372966bb a7a3cab4d33fd8a8aed864c447d0d7c99e85404e git Not specified
CNA Linux Linux affected e35f56bb03304abc92c928b641af41ca372966bb 0da63230d3ec1ec5fcc443a2314233e95bfece54 git Not specified
CNA Linux Linux affected 5.15.153 5.15.209 semver Not specified
CNA Linux Linux affected 6.0 Not specified
CNA Linux Linux unaffected 6.0 semver Not specified
CNA Linux Linux unaffected 5.15.209 5.15.* 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 6.12.84 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/73bf218de28d039126dc64281d2b47dd3c46a0a3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b261027a1a235d8925e332363f23135a0eff2b35 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/305a0674bc552bfcc3231e23fb91cf4f62aec168 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e238ab12556b00f3b4d8b870b32ba1e4f4d4ebc2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/0da63230d3ec1ec5fcc443a2314233e95bfece54 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a7a3cab4d33fd8a8aed864c447d0d7c99e85404e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/478e776101592eb63298714e96823ef78a3295ec 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/cec9ead73ab154a7953f6ab8dd5127e0d6bbf95a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report