CVE-2026-72022

CVE CVE-2026-72022EUVD EUVD-2026-58980Published 2026-08-15T05:51:47.000ZLast changed 2026-08-17T05:06:45.000Z

What the advisory describes

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.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux patch: 6.18.40; patch: 6.12.97; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <660667cd406648bbaffbd5c0d897c2263a852f11; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c7881b6088276601beaccb7440b8d56eab0d65ae; patch: 7.1.5; patch: 5.15.212; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b589a965184dde49c43b8caf5bcc65715a7b4ef2; patch: 7.2; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b2fc9955ddc7c4ca03be44b995193bd6486c62e1; patch: 6.6.145; patch: 0; 2.6.12; patch: 6.1.178; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <21a537606fe35be2b85971a5fd35c0023b6ef98f; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <79dc4b508e3f2649390a1f745f7657813e5938ec; patch: 5.10.261; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a2f9fa31ae021ef1fdcaf3ab17bd49f9223dd6a4; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <61a7ff4a62003b55a15022567486741b3bd83914

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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