5.5

CVE-2026-46009: PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown

Analyzed
AliasesUBUNTU-CVE-2026-46009DEBIAN-CVE-2026-46009
Published 27-05-2026Last modified 14-06-2026

Vulnerability summary

CVE-2026-46009 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.12% chance of exploitation in the next 30 days, higher than 2% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.12%
0%100%
Low · -0.04 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 46 · Related 46
OPENSUSE-SU-2026:10954-1OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23193-1SUSE-SU-2026:23194-1

Timeline

  1. 27-05-2026
    PublishedVulnerability first disclosed.
  2. 14-06-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown epf_ntb_epc_destroy() duplicates the teardown that the caller is supposed to do later. This leads to an oops when .allow_link fails or when .drop_link is performed. Remove the helper. Also drop pci_epc_put(). EPC device refcounting is tied to configfs EPC group lifetime, and pci_epc_put() in the .drop_link path is sufficient.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.12%

Chance of exploitation in the next 30 days

Percentile

2%

Versus all other CVEs

30-day change

Decrease -0.04 pp

From 0.16% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu147 products
  • linux< 5.15.0-186.196 | < 6.8.0-136.136 | All versions (No fix recorded) | < 7.0.0-27.27
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1112.119 | < 6.8.0-1061.64 | All versions (No fix recorded) | < 7.0.0-1008.8
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 8b821cf761503b80d0bd052f932adfe1bc1a0088, < c3029721b84f59e790285ad27544ed5d3cb0f2a6 | ≥ 8b821cf761503b80d0bd052f932adfe1bc1a0088, < c72f6a7ea638f95c486a5cfd86e567b646027687 | ≥ 8b821cf761503b80d0bd052f932adfe1bc1a0088, < 72099f015d3c77bf2eb703d1aab113bd7a60915a | ≥ 8b821cf761503b80d0bd052f932adfe1bc1a0088, < 756ca5e7ed22d9045bb4de4c981f9149278d5cd3 | ≥ 8b821cf761503b80d0bd052f932adfe1bc1a0088, < 65fc57c8b8f0b31be62be291cb1bb01755cec85d | ≥ 8b821cf761503b80d0bd052f932adfe1bc1a0088, < e813c95e4c8edd31599081e6356e20ada30e266d | ≥ 8b821cf761503b80d0bd052f932adfe1bc1a0088, < 3446beddba450c8d6f9aca2f028712ac527fead3 | 5.12
  • linux_kernel≥ 5.12, < 5.15.209 | ≥ 5.16, < 6.1.175 | ≥ 6.2, < 6.6.140 | ≥ 6.7, < 6.12.86 | ≥ 6.13, < 6.18.27 | ≥ 6.19, < 7.0.4
Debian1 product
  • linux< 6.1.176-1 | < 6.12.86-1 | < 7.0.4-1

3 vendors · 150 products

References

45 links
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