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CVE-2026-72022

llc: fix SAP refcount leak in llc_ui_autobind()

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < 79dc4b508e3f2649390a1f745f7657813e5938ec
Status affected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < a2f9fa31ae021ef1fdcaf3ab17bd49f9223dd6a4
Status affected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < b589a965184dde49c43b8caf5bcc65715a7b4ef2
Status affected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < c7881b6088276601beaccb7440b8d56eab0d65ae
Status affected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < b2fc9955ddc7c4ca03be44b995193bd6486c62e1
Status affected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < 61a7ff4a62003b55a15022567486741b3bd83914
Status affected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < 21a537606fe35be2b85971a5fd35c0023b6ef98f
Status affected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < 660667cd406648bbaffbd5c0d897c2263a852f11
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 2.6.12
Status affected
Version 0
Version < 2.6.12
Status unaffected
Version <= 5.10.*
Version 5.10.261
Status unaffected
Version <= 5.15.*
Version 5.15.212
Status unaffected
Version <= 6.1.*
Version 6.1.178
Status unaffected
Version <= 6.6.*
Version 6.6.145
Status unaffected
Version <= 6.12.*
Version 6.12.97
Status unaffected
Version <= 6.18.*
Version 6.18.40
Status unaffected
Version <= 7.1.*
Version 7.1.5
Status unaffected
Version <= *
Version 7.2
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.115
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/79dc4b508e3f2649390a1f745f7657813e5938ec
https://git.kernel.org/stable/c/a2f9fa31ae021ef1fdcaf3ab17bd49f9223dd6a4
https://git.kernel.org/stable/c/b589a965184dde49c43b8caf5bcc65715a7b4ef2
https://git.kernel.org/stable/c/c7881b6088276601beaccb7440b8d56eab0d65ae
https://git.kernel.org/stable/c/b2fc9955ddc7c4ca03be44b995193bd6486c62e1
https://git.kernel.org/stable/c/61a7ff4a62003b55a15022567486741b3bd83914
https://git.kernel.org/stable/c/21a537606fe35be2b85971a5fd35c0023b6ef98f
https://git.kernel.org/stable/c/660667cd406648bbaffbd5c0d897c2263a852f11