CVE-2026-92509

CVE CVE-2026-92509EUVD EUVD-2026-82130Published 2026-09-17T16:10:20.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix potential use after free in counter_release() When accessing a counter via the netlink path the only synchronization mechanism for the said counter is rdma_restrack_get(). Currently, rdma_restrack_del() is invoked at the end of counter_release(), which is too late, since by that point vendor-specific resources associated with the counter might already be freed. This can leave a short window where the counter remains accessible through restrack, leading to a potential use-after-free. Fix this by moving the rdma_restrack_del() call to be before the freeing of the vendor-specific resources, ensuring that the counter is removed from restrack before its internal resources are released. This guarantees that no new users hold references to a counter that is in the process of destruction.

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: 0; patch: 6.18.52; 5.3; patch: 7.3-rc1; patch: 7.2.6; 99fa331dc8629be55ac7a0cca0dc56492070ddac <2f0c6705e26ba92c0c6b0b0908a2d3f35a039d5b; patch: 6.12.110; patch: 6.1.188; 99fa331dc8629be55ac7a0cca0dc56492070ddac <5eb0c57a8b568eb08f464861d84d518a2af939ac; 99fa331dc8629be55ac7a0cca0dc56492070ddac <8c013e3a8d8273da4d47bf1c27f016a3551996f5; 99fa331dc8629be55ac7a0cca0dc56492070ddac <d5cc211e8c39e46f357d30a092d683e84d560de9; 99fa331dc8629be55ac7a0cca0dc56492070ddac <235ef2d0e750885c29340b0fc40620a7a4f52e12; 99fa331dc8629be55ac7a0cca0dc56492070ddac <64c72390d8407ea86de712a477c796b07d37abc4; patch: 6.6.157

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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