From 52c41a3224666d252d34597b580f1b6d4dc440e7 Mon Sep 17 00:00:00 2001 From: Patrick McHardy Date: Thu, 12 Oct 2006 01:48:20 -0700 Subject: [PATCH] [DECNET]: Fix sfuzz hanging on 2.6.18 Dave Jones wrote: > sfuzz D 724EF62A 2828 28717 28691 (NOTLB) > cd69fe98 00000082 0000012d 724ef62a 0001971a 00000010 00000007 df6d22b0 > dfd81080 725bbc5e 0001971a 000cc634 00000001 df6d23bc c140e260 00000202 > de1d5ba0 cd69fea0 de1d5ba0 00000000 00000000 de1d5b60 de1d5b8c de1d5ba0 > Call Trace: > [] lock_sock+0x75/0xa6 > [] dn_getname+0x18/0x5f [decnet] > [] sys_getsockname+0x5c/0xb0 > [] sys_socketcall+0xef/0x261 > [] syscall_call+0x7/0xb > DWARF2 unwinder stuck at syscall_call+0x7/0xb > > I wonder if the plethora of lockdep related changes inadvertantly broke something? Looks like unbalanced locking. Signed-off-by: Patrick McHardy Signed-off-by: David S. Miller --- net/decnet/af_decnet.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c index 70e027375682..3456cd331835 100644 --- a/net/decnet/af_decnet.c +++ b/net/decnet/af_decnet.c @@ -1178,8 +1178,10 @@ static int dn_getname(struct socket *sock, struct sockaddr *uaddr,int *uaddr_len if (peer) { if ((sock->state != SS_CONNECTED && sock->state != SS_CONNECTING) && - scp->accept_mode == ACC_IMMED) + scp->accept_mode == ACC_IMMED) { + release_sock(sk); return -ENOTCONN; + } memcpy(sa, &scp->peer, sizeof(struct sockaddr_dn)); } else { -- 2.20.1