CVE-2026-92509

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.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/235ef2d0e750885c29340b0fc40620a7a4f52e12
https://git.kernel.org/stable/c/2f0c6705e26ba92c0c6b0b0908a2d3f35a039d5b
https://git.kernel.org/stable/c/5eb0c57a8b568eb08f464861d84d518a2af939ac
https://git.kernel.org/stable/c/64c72390d8407ea86de712a477c796b07d37abc4
https://git.kernel.org/stable/c/8c013e3a8d8273da4d47bf1c27f016a3551996f5
https://git.kernel.org/stable/c/d5cc211e8c39e46f357d30a092d683e84d560de9

Configurations

No configuration.

History

17 Sep 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-17 17:17

Updated : 2026-09-17 17:17

NVD link : CVE-2026-92509

Mitre link : CVE-2026-92509

CVE.ORG link : CVE-2026-92509

JSON object : View

Products Affected

No product.

CWE

No CWE.

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