CVE-2026-80965ALSA: serial-u16550: Check card index validity at probe
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 9caf6b5908e1e3b10478e9201ca1be809145253f before 41a952304cc8a308748e3f58462c879f2a9c4340; from 9caf6b5908e1e3b10478e9201ca1be809145253f before cc0f757d017f4271f137c77e130314bb23792347; 9caf6b5908e1e3b10478e9201ca1be809145253f builds before 1cb30691dc893aafcbc1e211e94764014c0f5d12; from 9caf6b5908e1e3b10478e9201ca1be809145253f before 487ede9b648fc0eb15866f408c41aac2c57f85d5; from 9caf6b5908e1e3b10478e9201ca1be809145253f before fbf3fb097e66fc1874e54ecc46d600d9325480d6; from 9caf6b5908e1e3b10478e9201ca1be809145253f before 7555e83d7738e65dc83921e3c85bbdc081f08f2f; 9caf6b5908e1e3b10478e9201ca1be809145253f builds before 6d6fdb24fe2eaf6174fc502284c6e1dc5f7242ba; from 9caf6b5908e1e3b10478e9201ca1be809145253f before e0fb960b227fcdebe22e4f26c9486d60943c0424 | CNA record |
References
- https://git.kernel.org/stable/c/41a952304cc8a308748e3f58462c879f2a9c4340
- https://git.kernel.org/stable/c/cc0f757d017f4271f137c77e130314bb23792347
- https://git.kernel.org/stable/c/1cb30691dc893aafcbc1e211e94764014c0f5d12
- https://git.kernel.org/stable/c/487ede9b648fc0eb15866f408c41aac2c57f85d5
- https://git.kernel.org/stable/c/fbf3fb097e66fc1874e54ecc46d600d9325480d6
- https://git.kernel.org/stable/c/7555e83d7738e65dc83921e3c85bbdc081f08f2f
- https://git.kernel.org/stable/c/6d6fdb24fe2eaf6174fc502284c6e1dc5f7242ba
- https://git.kernel.org/stable/c/e0fb960b227fcdebe22e4f26c9486d60943c0424
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.