CVE-2026-80965: linux
Vulnerability summary
CVE-2026-80965 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 6.8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 11-09-2026PublishedVulnerability first disclosed.
- 19-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: serial-u16550: Check card index validity at probe serial-u16550 driver blindly trusts that the given devptr->id value is within the proper card index range at probe. It's OK for the devices the driver itself creates at the module probe time, but if the device is bound manually via sysfs interface, this could be -1 as "none", and this leads to OOB access for index[] and other parameters. Add a sanity check for the card index and warn/correct it if it's a value out of the range.
CVSS metrics
Risk metrics not yet published.
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
7%
Versus all other CVEs
30-day change
0.00 pp
From 0.18% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
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≥ 9caf6b5908e1e3b10478e9201ca1be809145253f, < 41a952304cc8a308748e3f58462c879f2a9c4340 | ≥ 9caf6b5908e1e3b10478e9201ca1be809145253f, < cc0f757d017f4271f137c77e130314bb23792347 | ≥ 9caf6b5908e1e3b10478e9201ca1be809145253f, < 1cb30691dc893aafcbc1e211e94764014c0f5d12 | ≥ 9caf6b5908e1e3b10478e9201ca1be809145253f, < 487ede9b648fc0eb15866f408c41aac2c57f85d5 | ≥ 9caf6b5908e1e3b10478e9201ca1be809145253f, < fbf3fb097e66fc1874e54ecc46d600d9325480d6 | ≥ 9caf6b5908e1e3b10478e9201ca1be809145253f, < 7555e83d7738e65dc83921e3c85bbdc081f08f2f | ≥ 9caf6b5908e1e3b10478e9201ca1be809145253f, < 6d6fdb24fe2eaf6174fc502284c6e1dc5f7242ba | ≥ 9caf6b5908e1e3b10478e9201ca1be809145253f, < e0fb960b227fcdebe22e4f26c9486d60943c0424 | 2.6.16
3 vendors · 172 products