CVE-2026-93086: linux

CVSS: UnknownReceived
AliasesUBUNTU-CVE-2026-93086DEBIAN-CVE-2026-93086
Published 17-09-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-93086 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.20% chance of exploitation in the next 30 days, higher than 9.3% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.20%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
MGASA-2026-0506OPENSUSE-SU-2026:12074-1

Timeline

  1. 17-09-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Avoid IDR updates while cleaning channels scmi_cleanup_channels() walks the TX/RX channel IDRs with idr_for_each() to free transport resources and destroy the dedicated transport devices before calling idr_destroy(). The destroy callback removed each entry from the same IDR being walked. That is not needed for this cleanup path, and it is unsafe because idr_for_each() has not advanced its radix-tree iterator while the callback is running. Removing the current entry from the callback can invalidate the iterator state. The callback also cannot be protected by rcu_read_lock(), because scmi_device_destroy() may sleep. Leave IDR teardown to the following idr_destroy() call and keep the callback limited to device destruction.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.20%

Chance of exploitation in the next 30 days

Percentile

9%

Versus all other CVEs

30-day change

0.00 pp

From 0.20% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.20%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu142 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
  • linux< 6.12.111-1 | < 7.2.6-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ 05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1, < aed24a3c63920539e9de7fbfe7929a2e7c888cd2 | ≥ 05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1, < 431c6b872ba7fedcc5a3afb0ec3517db4d95d088 | ≥ 05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1, < 54e5a4f7d83db4552d963d0785be32d9df680dcd | ≥ 05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1, < bab26acebe55e8ad3ab545abda72faa7ca28c477 | ≥ 05a2801d8b90c1b5159618d4bd3a3c65d60f3ff1, < c38b1e19485aaa820e52cfe162525a8af67563da | 6.3

3 vendors · 145 products

References

10 links