The vulnerability of the xdr_stream_decode_opaque_auth() function in the net/sunrpc/auth_gss/svcauth_gss.c module of the Linux operating system’s RPC kernel implementation allows a attacker to cause a service failure.

The vulnerability of the xdrstreamdecodeopaqueauth function in the net/sunrpc/authgss/svcauthgss.c module of the Linux operating system’s RPC implementation is related to the swapping of pointers. Exploiting this vulnerability could allow a remote attacker to cause a service failure...

CVE-2025-40129 sunrpc: fix null pointer dereference on zero-length checksum

In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix null pointer dereference on zero-length checksum In xdrstreamdecodeopaqueauth, zero-length checksum.len causes checksum.data to be set to NULL. This triggers a NPD when accessing checksum.data in gsskrb5verifymicv2...