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CVE-2026-80990: linux

CVSS: 1.0v4.0LowReceived
AliasesUBUNTU-CVE-2026-80990DEBIAN-CVE-2026-80990
Published 11-09-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-80990 is a low (CVSS 1.0) vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10% of scored vulnerabilities.

Overall risk
4/100
0100
Minimal · default modelHow is this calculated?
CVSS score
1.0/10
010
Low · v4.0 (OSV · Ubuntu), selected by version preference
EPSS score
0.21%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:11805-1

Timeline

  1. 11-09-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: net: thunderbolt: Release the Rx HopID that was handed out on mismatch tb_xdomain_alloc_in_hopid() passes the wanted HopID to ida_alloc_range() as the lower bound, so a taken id is not an error there: the allocator returns the next free one above it. tbnet_connected_work() asks for the peer's transmit path, treats any other id as a failure and returns without releasing what it got, so that allocation stays live for the rest of the XDomain connection with nothing left holding a reference to it. Release the id when it is not the one we asked for, the same way the error unwind at the end of the function releases the expected one.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

+0.01 pp

From 0.20% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.21%

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

Ubuntu157 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) | < 6.12.111-1 | < 7.2.6-1
  • linux-6.12< 6.12.111-1~deb12u1
Linux1 product
  • linux≥ 180b0689425c6fb2b35e69a3316ee38371a782df, < 47981eb66461ba4e74bbaea0f139adaaeb3991e9 | ≥ 180b0689425c6fb2b35e69a3316ee38371a782df, < 9eac1817bfc5fa76e3a2d1b8fd824cc6ef5a9ab0 | ≥ 180b0689425c6fb2b35e69a3316ee38371a782df, < 61ff3c353e5d2ff4eb9d0b6d8d9e47805b136eea | ≥ 180b0689425c6fb2b35e69a3316ee38371a782df, < 1c361f6cf39be7cc0ce37c0b67bd1cdf74b0a0c1 | ≥ 180b0689425c6fb2b35e69a3316ee38371a782df, < 2f1463554d0561a2fead81e3888604e5c1125e29 | 5.13

3 vendors · 160 products

References

9 links