CVE-2026-98772USB: serial: fix port tear down use-after-free
- —Not scoredno CVSS score yet
- 0.18%Exploitation in 30 daysEPSS · top 93% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: USB: serial: fix port tear down use-after-free Some drivers for multiport devices access port driver data from completion handlers of shared URBs submitted at attach() or first open() and stopped at disconnect() or last close(), respectively. A simple NULL check before accessing the driver data makes sure that a port state container has at least been allocated, but a completion handler can still race with port tear down. Reorder the disconnect handling so that ports are not deregistered (and their driver data freed) until after all ports have been hung up and the driver disconnect() callback has run so that all I/O has been stopped.
Timeline
ID reserved
By Linux
- 23 days later
· 23 days later
Published
- 12 days later
· 12 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.18% · top 93% of all CVEs (15 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 2d93148ab6988cad872e65d694c95e8944e1b626 – < 8ed69d299b9d7872f911f089e00cdd2ea6969d2c
- affected 2d93148ab6988cad872e65d694c95e8944e1b626 – < bf296d7b75bfd49dc519ad0406e89ddc5c3f02e3
- affected 2d93148ab6988cad872e65d694c95e8944e1b626 – < 94601d83fc4811485ca6fb1d50bece589fe1c24d
- affected 2d93148ab6988cad872e65d694c95e8944e1b626 – < e4a6883ad9b4686a5f4bd90ff55a44d7ab65bd3c
- affected 2d93148ab6988cad872e65d694c95e8944e1b626 – < 60cc9379c3e650d1ebfba4de63f1242537a62a32
- affected 2d93148ab6988cad872e65d694c95e8944e1b626 – < 5e8980a81af195c49084be5b4c031085b56c7443
- affected 2d93148ab6988cad872e65d694c95e8944e1b626 – < e80ee74206f260eb1282e7d1339ff146a4a410d0
- affected 2d93148ab6988cad872e65d694c95e8944e1b626 – < 33c920f7c5952dfc42d1b8ea6efe16b1f0bb0c5b
- affected 2.6.30
- unaffected < 2.6.30
- unaffected 5.10.273 – ≤ 5.10.*
- unaffected 5.15.224 – ≤ 5.15.*
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.113 – ≤ 6.12.*
- unaffected 6.18.56 – ≤ 6.18.*
- unaffected 7.2.10 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/8ed69d299b9d7872f911f089e00cdd2ea6969d2c (opens in a new tab)
- https://git.kernel.org/stable/c/bf296d7b75bfd49dc519ad0406e89ddc5c3f02e3 (opens in a new tab)
- https://git.kernel.org/stable/c/94601d83fc4811485ca6fb1d50bece589fe1c24d (opens in a new tab)
- https://git.kernel.org/stable/c/e4a6883ad9b4686a5f4bd90ff55a44d7ab65bd3c (opens in a new tab)
- https://git.kernel.org/stable/c/60cc9379c3e650d1ebfba4de63f1242537a62a32 (opens in a new tab)
- https://git.kernel.org/stable/c/5e8980a81af195c49084be5b4c031085b56c7443 (opens in a new tab)
- https://git.kernel.org/stable/c/e80ee74206f260eb1282e7d1339ff146a4a410d0 (opens in a new tab)
- https://git.kernel.org/stable/c/33c920f7c5952dfc42d1b8ea6efe16b1f0bb0c5b (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-103857 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-98772)Record last updated .