Hyunwoo Kim 6769cd8a74 net/rose: Fix to not accept on connected socket ... [ Upstream commit 14caefcf98 ] If you call listen() and accept() on an already connect()ed rose socket, accept() can successfully connect. This is because when the peer socket sends data to sendmsg, the skb with its own sk stored in the connected socket's sk->sk_receive_queue is connected, and rose_accept() dequeues the skb waiting in the sk->sk_receive_queue. This creates a child socket with the sk of the parent rose socket, which can cause confusion. Fix rose_listen() to return -EINVAL if the socket has already been successfully connected, and add lock_sock to prevent this issue. Signed-off-by: Hyunwoo Kim <v4bel@theori.io> Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com> Link: https://lore.kernel.org/r/20230125105944.GA133314@ubuntu Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-02-22 12:57:02 +01:00
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af_rose.c	net/rose: Fix to not accept on connected socket	2023-02-22 12:57:02 +01:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
rose_dev.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
rose_in.c	treewide: Use fallthrough pseudo-keyword	2020-08-23 17:36:59 -05:00
rose_link.c	rose: Fix NULL pointer dereference in rose_send_frame()	2022-11-10 18:15:29 +01:00
rose_loopback.c	rose: check NULL rose_loopback_neigh->loopback	2022-08-31 17:16:38 +02:00
rose_out.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
rose_route.c	net: rose: fix netdev reference changes	2022-08-17 14:23:37 +02:00
rose_subr.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
rose_timer.c	net: rose: fix UAF bugs caused by timer handler	2022-07-07 17:53:25 +02:00
sysctl_net_rose.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00