On 6/9/22 6:01 AM, syzbot wrote:
Hello, syzbot found the following issue on: HEAD commit: 03c312cc5f47 Add linux-next specific files for 20220608 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=155a4b73f00000 kernel config: https://syzkaller.appspot.com/x/.config?x=a0a0f5184fb46b dashboard link: https://syzkaller.appspot.com/bug?extid=efe1afd49d981d281ae4 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=168d9ebff00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=125c6e5ff00000 The issue was bisected to: commit d8616ee2affcff37c5d315310da557a694a3303d Author: Wang Yufen <wangyufen@xxxxxxxxxx> Date: Tue May 24 07:53:11 2022 +0000 bpf, sockmap: Fix sk->sk_forward_alloc warn_on in sk_stream_kill_queues
Wang, please take a look and fix. Thanks!
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=138a4b57f00000 final oops: https://syzkaller.appspot.com/x/report.txt?x=104a4b57f00000 console output: https://syzkaller.appspot.com/x/log.txt?x=178a4b57f00000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+efe1afd49d981d281ae4@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: d8616ee2affc ("bpf, sockmap: Fix sk->sk_forward_alloc warn_on in sk_stream_kill_queues") BUG: sleeping function called from invalid context at kernel/workqueue.c:3010 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 3611, name: syz-executor124 preempt_count: 201, expected: 0 RCU nest depth: 0, expected: 0 3 locks held by syz-executor124/3611: #0: ffff888073295c10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:742 [inline] #0: ffff888073295c10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x280 net/socket.c:649 #1: ffff888073ff1ab0 (sk_lock-AF_INET6){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1691 [inline] #1: ffff888073ff1ab0 (sk_lock-AF_INET6){+.+.}-{0:0}, at: tcp_close+0x1e/0xc0 net/ipv4/tcp.c:2908 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
