CVE-2026-72022llc: fix SAP refcount leak in llc_ui_autobind()
- —Not scoredno CVSS score yet
- 0.22%Exploitation in 30 daysEPSS · top 87% 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: llc: fix SAP refcount leak in llc_ui_autobind() llc_ui_autobind() opens a SAP after choosing a dynamic LSAP. llc_sap_open() returns a reference owned by the caller, and llc_sap_add_socket() takes a second reference for the socket's membership in the SAP hash tables. llc_ui_bind() drops the caller's reference after adding the socket, but llc_ui_autobind() keeps it. When the socket is closed, llc_sap_remove_socket() releases only the socket reference, leaving the SAP on llc_sap_list with sk_count == 0. This is user-visible because repeated autobind and close cycles can consume all dynamic SAP values and make later autobinds fail with -EUSERS. Drop the caller's reference after a successful autobind, matching llc_ui_bind()'s ownership model.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 2 days later
· 2 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)
- 0.22% · top 87% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 79dc4b508e3f2649390a1f745f7657813e5938ec
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < a2f9fa31ae021ef1fdcaf3ab17bd49f9223dd6a4
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < b589a965184dde49c43b8caf5bcc65715a7b4ef2
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < c7881b6088276601beaccb7440b8d56eab0d65ae
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < b2fc9955ddc7c4ca03be44b995193bd6486c62e1
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 61a7ff4a62003b55a15022567486741b3bd83914
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 21a537606fe35be2b85971a5fd35c0023b6ef98f
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 660667cd406648bbaffbd5c0d897c2263a852f11
- affected 2.6.12
- unaffected < 2.6.12
- unaffected 5.10.261 – ≤ 5.10.*
- unaffected 5.15.212 – ≤ 5.15.*
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/79dc4b508e3f2649390a1f745f7657813e5938ec (opens in a new tab)
- https://git.kernel.org/stable/c/a2f9fa31ae021ef1fdcaf3ab17bd49f9223dd6a4 (opens in a new tab)
- https://git.kernel.org/stable/c/b589a965184dde49c43b8caf5bcc65715a7b4ef2 (opens in a new tab)
- https://git.kernel.org/stable/c/c7881b6088276601beaccb7440b8d56eab0d65ae (opens in a new tab)
- https://git.kernel.org/stable/c/b2fc9955ddc7c4ca03be44b995193bd6486c62e1 (opens in a new tab)
- https://git.kernel.org/stable/c/61a7ff4a62003b55a15022567486741b3bd83914 (opens in a new tab)
- https://git.kernel.org/stable/c/21a537606fe35be2b85971a5fd35c0023b6ef98f (opens in a new tab)
- https://git.kernel.org/stable/c/660667cd406648bbaffbd5c0d897c2263a852f11 (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-2026-58980 (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)
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[](https://cveledger.app/cve/CVE-2026-72022)Record last updated .