CVE-2026-98754tty: vcc: hold port lock when clearing tty pointer in vcc_cleanup
- —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: tty: vcc: hold port lock when clearing tty pointer in vcc_cleanup vcc_cleanup() sets port->tty to NULL without holding port->lock, racing with vcc_event() LDC callbacks that read port->tty under port->lock and then use tty->port. This can cause a use-after-free when the callback dereferences tty->port after cleanup has already destroyed and freed it.
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 (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb – < b0ad9d025c3229a628a82fbaa7578891075a950d
- affected 8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb – < b193617080b7036d143674089bcfb7d2ba3db588
- affected 8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb – < afcbb821c571f39b273127a7c7d26cb2cef27d2f
- affected 8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb – < 57753441ef84bee3bf0e9ee1e3778d119c44aa32
- affected 8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb – < 88f6ecb058801e9ce7b9aabc966530118d7cd53c
- affected 8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb – < 821050631750e982007c0856c119346edba51cae
- affected 8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb – < 1a9fb9eaeb69b1f6c00bed09289a33d9fe1e7ae4
- affected 8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb – < 03b49c991abb8d021ca6fe51cd173447236b0552
- affected 4.14
- unaffected < 4.14
- 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/b0ad9d025c3229a628a82fbaa7578891075a950d (opens in a new tab)
- https://git.kernel.org/stable/c/b193617080b7036d143674089bcfb7d2ba3db588 (opens in a new tab)
- https://git.kernel.org/stable/c/afcbb821c571f39b273127a7c7d26cb2cef27d2f (opens in a new tab)
- https://git.kernel.org/stable/c/57753441ef84bee3bf0e9ee1e3778d119c44aa32 (opens in a new tab)
- https://git.kernel.org/stable/c/88f6ecb058801e9ce7b9aabc966530118d7cd53c (opens in a new tab)
- https://git.kernel.org/stable/c/821050631750e982007c0856c119346edba51cae (opens in a new tab)
- https://git.kernel.org/stable/c/1a9fb9eaeb69b1f6c00bed09289a33d9fe1e7ae4 (opens in a new tab)
- https://git.kernel.org/stable/c/03b49c991abb8d021ca6fe51cd173447236b0552 (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-2026-103839 (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-2026-98754)Record last updated .