CVE-2026-74316: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: NFSD: Handle layout stid in nfsd4_drop_revoked_stid() nfsd4_drop_revoked_stid() has no SC_TYPE_LAYOUT case, so when a client sends FREE_STATEID for an admin-revoked layout stid, the default branch releases cl_lock and returns without unhashing or releasing the stid. The stid remains in the IDR and on the per-client list until the client is destroyed. Remove the layout stid from the per-client list and call nfs4_put_stid() to drop the creation reference. When the refcount reaches zero, nfsd4_free_layout_stateid() handles the remaining cleanup: cancelling the fence worker, removing from the per-file list, and freeing the slab object.

Засегнати продукти

• Linux Linux: 1e33e1414bec54a4feafa9e67e2617031be0afe2 преди 7ed62f7040ee182cf7dea5798f9e114235b31dae; 1e33e1414bec54a4feafa9e67e2617031be0afe2 преди da6f86ff4f2dd490bea52419a49e19680efd5847; 1e33e1414bec54a4feafa9e67e2617031be0afe2 преди 8024028ef91616cf91cc669f2446a0406bc0ba19; 1e33e1414bec54a4feafa9e67e2617031be0afe2 преди 86b9898920a6d02b4149f4fef9efd77b8aa3b9ca
• Linux Linux: 6.9; преди 6.9; 6.12.97 до 6.12.*; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-74316
• https://nvd.nist.gov/vuln/detail/CVE-2026-74316
• https://git.kernel.org/stable/c/7ed62f7040ee182cf7dea5798f9e114235b31dae
• https://git.kernel.org/stable/c/da6f86ff4f2dd490bea52419a49e19680efd5847
• https://git.kernel.org/stable/c/8024028ef91616cf91cc669f2446a0406bc0ba19
• https://git.kernel.org/stable/c/86b9898920a6d02b4149f4fef9efd77b8aa3b9ca