Hello, syzbot found the following issue on: HEAD commit: d310ec03 Merge tag 'perf-core-2021-02-17' of git://git.ker.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=147866a2d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=e681d54870713a40 dashboard link: https://syzkaller.appspot.com/bug?extid=6630070762b727ca8ebb Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+6630070762b727ca8ebb@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ DEBUG_LOCKS_WARN_ON(lock->magic != lock) WARNING: CPU: 1 PID: 14622 at kernel/locking/mutex.c:928 __mutex_lock_common kernel/locking/mutex.c:928 [inline] WARNING: CPU: 1 PID: 14622 at kernel/locking/mutex.c:928 __mutex_lock+0xc0b/0x1120 kernel/locking/mutex.c:1093 Modules linked in: CPU: 1 PID: 14622 Comm: syz-executor.2 Not tainted 5.11.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__mutex_lock_common kernel/locking/mutex.c:928 [inline] RIP: 0010:__mutex_lock+0xc0b/0x1120 kernel/locking/mutex.c:1093 Code: 08 84 d2 0f 85 a3 04 00 00 8b 05 c8 90 c2 04 85 c0 0f 85 12 f5 ff ff 48 c7 c6 40 9b 6b 89 48 c7 c7 00 99 6b 89 e8 17 2a bd ff <0f> 0b e9 f8 f4 ff ff 65 48 8b 1c 25 00 f0 01 00 be 08 00 00 00 48 RSP: 0018:ffffc9000940f400 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815b4c85 RDI: fffff52001281e72 RBP: ffff88807aa18c50 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815ade9e R11: 0000000000000000 R12: 0000000000000000 R13: dffffc0000000000 R14: ffffc9000940f5b0 R15: 0000000000000000 FS: 00007f6893111700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005627d0936188 CR3: 000000007933e000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee802154_add_seclevel+0x3f/0x70 net/mac802154/cfg.c:367 rdev_add_seclevel net/ieee802154/rdev-ops.h:276 [inline] nl802154_add_llsec_seclevel+0x194/0x230 net/ieee802154/nl802154.c:2077 genl_family_rcv_msg_doit+0x228/0x320 net/netlink/genetlink.c:739 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:800 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2502 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1312 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1338 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1927 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2348 ___sys_sendmsg+0xf3/0x170 net/socket.c:2402 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2435 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x465f69 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6893111188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 0000000000465f69 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 000000000000000a RBP: 00000000004bfa67 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008 R13: 00007ffd15b1997f R14: 00007f6893111300 R15: 0000000000022000 --- 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.
