CVE-2026-31594

medium

In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-vntb: Remove duplicate resource teardown epf_ntb_epc_destroy() dup…

Vendor / product: Linux — linux kernel

In 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.

CVSS

5.5

5.5 (CVSS v3.1)

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

Severity source: NVD CVSS v3.1 (nvd@nist.gov)

Timeline (UTC)

Published: 2026-04-24 15:16

Modified: 2026-11-11 23:10

NVD status: Modified

Last synced 3 hours ago

Verified against the source API 2026-11-11 23:12 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

linux / linux_kernel ≥6.0 <6.6.136, ≥6.7 <6.12.84, ≥6.13 <6.18.24, ≥6.19 <6.19.14, ≥7.0 <7.0.1

Weakness classification (CWE)

NVD-CWE-noinfo

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Patch / mitigation: https://git.kernel.org/stable/c/0da63230d3ec1ec5fcc443a2314233e95bfece54

Patch / mitigation: https://git.kernel.org/stable/c/478e776101592eb63298714e96823ef78a3295ec

Patch / mitigation: https://git.kernel.org/stable/c/73bf218de28d039126dc64281d2b47dd3c46a0a3

Patch / mitigation: https://git.kernel.org/stable/c/a7a3cab4d33fd8a8aed864c447d0d7c99e85404e

Patch / mitigation: https://git.kernel.org/stable/c/cec9ead73ab154a7953f6ab8dd5127e0d6bbf95a

Patch / mitigation: https://git.kernel.org/stable/c/e238ab12556b00f3b4d8b870b32ba1e4f4d4ebc2

References

https://git.kernel.org/stable/c/0da63230d3ec1ec5fcc443a2314233e95bfece54 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/305a0674bc552bfcc3231e23fb91cf4f62aec168 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/478e776101592eb63298714e96823ef78a3295ec 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/73bf218de28d039126dc64281d2b47dd3c46a0a3 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a7a3cab4d33fd8a8aed864c447d0d7c99e85404e 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b261027a1a235d8925e332363f23135a0eff2b35 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/cec9ead73ab154a7953f6ab8dd5127e0d6bbf95a 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e238ab12556b00f3b4d8b870b32ba1e4f4d4ebc2 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Data sources

NVD CVE API 2.0 — fetched 2026-11-11 23:12 UTC · record ↗

Learn the basics

Understanding CVEs and CVSS Scores

CVE-2026-31594

Affected products

Weakness classification (CWE)

Mitigation & advisories

References

Data sources

Learn the basics

Related CVEs