Mark Johnston fc7993cf2d rpcsec_tls: Avoid a socket reference underflow in rpctls_server() ...

The upcall_sockets tree owns a ref on any resident socket.  When a
socket is removed after a TLS handshake failure, rpctls_rpc_failed()
thus calls soclose().

rpctls_server() does not acquire an extra ref to compensate for this.
So, if the upcall fails, e.g., because rpc.tlsservd is not running,
we'll call soclose() to drop the reference, but this effectively
releases the xprt layer's reference.

Fix the problem by explicitly acquiring a socket reference when adding
a socket to the upcall tree.

PR:		289734
Reviewed by:	rmacklem, glebius
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D57555

2026-06-15 15:54:30 +00:00

..

auth_tls.c

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rpctls_impl.c

rpcsec_tls: Avoid a socket reference underflow in rpctls_server()

2026-06-15 15:54:30 +00:00

rpctlscd.x

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rpctlssd.x

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