CVE-2026-92513: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: RDMA/mana_ib: drain QP references after partial table insertion mana_table_store_ud_qp() publishes a QP at its send-queue id before inserting the receive-queue id, dropping the XArray lock between the two xa_insert_irq() calls. A concurrent completion handler can look up the QP and take a transient reference. When the second insertion fails, the rollback erased only the send-queue entry and returned, leaving both the initial table reference and the transient reference outstanding while RDMA core frees the QP, causing a use-after-free. Drain the reference as normal destruction does: drop the initial reference and wait for qp->free, releasing the QP only after every concurrent lookup returns its reference.

Засегнати продукти

• Linux Linux: 8001e9257eca23264550ff9e34598ee43a80f0f9 преди 4aaa2ab816c710be7385b31d08373edcdcd71656; 8001e9257eca23264550ff9e34598ee43a80f0f9 преди 638b9a5364c1482e5d104823c1a3884b3d249484; 8001e9257eca23264550ff9e34598ee43a80f0f9 преди 97f7c2262c28ebcae64fc957ee978646684a5ed9
• Linux Linux: 6.15; преди 6.15; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; 7.3 до *

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-2026-92513
• https://nvd.nist.gov/vuln/detail/CVE-2026-92513
• https://git.kernel.org/stable/c/4aaa2ab816c710be7385b31d08373edcdcd71656
• https://git.kernel.org/stable/c/638b9a5364c1482e5d104823c1a3884b3d249484
• https://git.kernel.org/stable/c/97f7c2262c28ebcae64fc957ee978646684a5ed9