diff mbox series

[SRU,F,v2,2/2] ipv6: init the accept_queue's spinlocks in inet6_create

Message ID 20240410145710.11317-3-bethany.jamison@canonical.com
State New
Headers show
Series CVE-2024-26614 | expand

Commit Message

Bethany Jamison April 10, 2024, 2:57 p.m. UTC 
From: Zhengchao Shao <shaozhengchao@huawei.com>

In commit 198bc90e0e73("tcp: make sure init the accept_queue's spinlocks
once"), the spinlocks of accept_queue are initialized only when socket is
created in the inet4 scenario. The locks are not initialized when socket
is created in the inet6 scenario. The kernel reports the following error:
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
Hardware name: Red Hat KVM, BIOS 0.5.1 01/01/2011
Call Trace:
<TASK>
	dump_stack_lvl (lib/dump_stack.c:107)
	register_lock_class (kernel/locking/lockdep.c:1289)
	__lock_acquire (kernel/locking/lockdep.c:5015)
	lock_acquire.part.0 (kernel/locking/lockdep.c:5756)
	_raw_spin_lock_bh (kernel/locking/spinlock.c:178)
	inet_csk_listen_stop (net/ipv4/inet_connection_sock.c:1386)
	tcp_disconnect (net/ipv4/tcp.c:2981)
	inet_shutdown (net/ipv4/af_inet.c:935)
	__sys_shutdown (./include/linux/file.h:32 net/socket.c:2438)
	__x64_sys_shutdown (net/socket.c:2445)
	do_syscall_64 (arch/x86/entry/common.c:52)
	entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129)
RIP: 0033:0x7f52ecd05a3d
Code: 5b 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 48 89 f8 48 89 f7
48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff
ff 73 01 c3 48 8b 0d ab a3 0e 00 f7 d8 64 89 01 48
RSP: 002b:00007f52ecf5dde8 EFLAGS: 00000293 ORIG_RAX: 0000000000000030
RAX: ffffffffffffffda RBX: 00007f52ecf5e640 RCX: 00007f52ecd05a3d
RDX: 00007f52ecc8b188 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f52ecf5de20 R08: 00007ffdae45c69f R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f52ecf5e640
R13: 0000000000000000 R14: 00007f52ecc8b060 R15: 00007ffdae45c6e0

Fixes: 198bc90e0e73 ("tcp: make sure init the accept_queue's spinlocks once")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20240122102001.2851701-1-shaozhengchao@huawei.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
(cherry picked from commit 435e202d645c197dcfd39d7372eb2a56529b6640)
CVE-2024-26614
Signed-off-by: Bethany Jamison <bethany.jamison@canonical.com>
---
 net/ipv6/af_inet6.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 7ee0bfea9de1d..49c39f03feee7 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -194,6 +194,9 @@  static int inet6_create(struct net *net, struct socket *sock, int protocol,
 	if (INET_PROTOSW_REUSE & answer_flags)
 		sk->sk_reuse = SK_CAN_REUSE;
 
+	if (INET_PROTOSW_ICSK & answer_flags)
+		inet_init_csk_locks(sk);
+
 	inet = inet_sk(sk);
 	inet->is_icsk = (INET_PROTOSW_ICSK & answer_flags) != 0;