linux-yocto/net/rxrpc
David Howells 0eef29385d rxrpc: Fix oops due to non-existence of prealloc backlog struct
commit 880a88f318 upstream.

If an AF_RXRPC service socket is opened and bound, but calls are
preallocated, then rxrpc_alloc_incoming_call() will oops because the
rxrpc_backlog struct doesn't get allocated until the first preallocation is
made.

Fix this by returning NULL from rxrpc_alloc_incoming_call() if there is no
backlog struct.  This will cause the incoming call to be aborted.

Reported-by: Junvyyang, Tencent Zhuque Lab <zhuque@tencent.com>
Suggested-by: Junvyyang, Tencent Zhuque Lab <zhuque@tencent.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: LePremierHomme <kwqcheii@proton.me>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Willy Tarreau <w@1wt.eu>
cc: Simon Horman <horms@kernel.org>
cc: linux-afs@lists.infradead.org
Link: https://patch.msgid.link/20250708211506.2699012-3-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-07-17 18:32:06 +02:00
..
af_rxrpc.c
ar-internal.h
call_accept.c
call_event.c
call_object.c
conn_client.c
conn_event.c
conn_object.c
conn_service.c
input.c
insecure.c
Kconfig
key.c
local_event.c
local_object.c
Makefile
misc.c
net_ns.c
output.c
peer_event.c
peer_object.c
proc.c
protocol.h
recvmsg.c
rtt.c
rxkad.c
security.c
sendmsg.c
server_key.c
skbuff.c
sysctl.c
utils.c