In the Linux kernel, the following vulnerability has been resolved: NFS: Check the TLS certificate fields in nfs_match_client() If the TLS security policy is of type RPC_XPRTSEC_TLS_X509, then the cert_serial and privkey_serial fields need to match as well since they define the client's identity, as presented to the server.
https://git.kernel.org/stable/c/fb2cba0854a7f315c8100a807a6959b99d72479e
https://git.kernel.org/stable/c/b8fa37219074811c04d4ecb742c73e2b296da6a8