CVE-2026-93821: PCI: altera: Protect root bus removal with rescan lock

Received
AliasesUBUNTU-CVE-2026-93821DEBIAN-CVE-2026-93821
Published 24-09-2026Last modified 03-10-2026

Vulnerability summary

CVE-2026-93821 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.7% of scored vulnerabilities.

Priority
Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.17%
0%100%
Low · 0.00 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 4 · Related 4
SUSE-SU-2026:24371-1SUSE-SU-2026:24379-1SUSE-SU-2026:4935-1SUSE-SU-2026:4940-1

Timeline

  1. 24-09-2026
    PublishedVulnerability first disclosed.
  2. 03-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: PCI: altera: Protect root bus removal with rescan lock Hold the pci_rescan_remove_lock lock while stopping and removing a root bus to avoid racing with concurrent rescan or hotplug operations triggered via sysfs. Such races may lead to use-after-free issues or system crashes. [bhelgaas: commit log]

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

7%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.17% 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: not stated in public data.

Ubuntu169 products
  • linuxAll versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
  • linuxAll versions (No fix recorded) | < 6.1.190-1 | < 6.12.111-1 | < 7.2.6-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22, < cf9d84d1b6a7c3f3780c043df220a7e9e38137eb | ≥ ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22, < fc462f1bdeaea9789928cbfdf5e069ee559c7642 | ≥ ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22, < 442b7f2a093b4a75f8963aaa7cbb2b8df35a6ac3 | ≥ ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22, < 4b69c63cc247fc0f499fbd11076fee9c2a6e6fd7 | ≥ ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22, < c0cd65906e5f7e293ef2568c9524cc0a918333c3 | ≥ ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22, < 7cbb8f2750d91e64caff89e164ac8280bb80bedc | ≥ ec15c4d0d5d2e431169fbdf6c6bcf0c8ff71ef22, < a8759c8ac48c0419f5899e95a6ffc611b07c965b | 5.3

3 vendors · 172 products

References

10 links