Linux Kernel: RXRPC Server Keyring Refcount Leak
CVE-2026-31634 Published on April 24, 2026
rxrpc: fix reference count leak in rxrpc_server_keyring()
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: fix reference count leak in rxrpc_server_keyring()
This patch fixes a reference count leak in rxrpc_server_keyring()
by checking if rx->securities is already set.
Products Associated with CVE-2026-31634
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Affected Versions
Linux:- Version 17926a79320afa9b95df6b977b40cca6d8713cea and below fc76d0bd00850b7372f0a4a319c0c60f80487632 is affected.
- Version 17926a79320afa9b95df6b977b40cca6d8713cea and below c6d9ea26cf8756ad6f162578e94a5f82f6fae3c2 is affected.
- Version 17926a79320afa9b95df6b977b40cca6d8713cea and below 9ce36d28f67c2a477a7e2f03480de3f6783fb363 is affected.
- Version 17926a79320afa9b95df6b977b40cca6d8713cea and below 12de9e0e0b0b7058be7dfb8a5927eb565bc25780 is affected.
- Version 17926a79320afa9b95df6b977b40cca6d8713cea and below 8ee931c3cd97f1c42b4fbf057f04b9dae45dfb7a is affected.
- Version 17926a79320afa9b95df6b977b40cca6d8713cea and below 139c750bf06649097d98b0bc41e2a678b4627e27 is affected.
- Version 17926a79320afa9b95df6b977b40cca6d8713cea and below f125846ee79fcae537a964ce66494e96fa54a6de is affected.
- Version 2.6.22 is affected.
- Before 2.6.22 is unaffected.
- Version 5.15.203, <= 5.15.* is unaffected.
- Version 6.1.169, <= 6.1.* is unaffected.
- Version 6.6.135, <= 6.6.* is unaffected.
- Version 6.12.82, <= 6.12.* is unaffected.
- Version 6.18.23, <= 6.18.* is unaffected.
- Version 6.19.13, <= 6.19.* is unaffected.
- Version 7.0, <= * is unaffected.