INFO: trying to register non-static key in ieee802154_add_seclevel

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 397a88b2 Linux 4.14.223
git tree: linux-4.14.y
console output: https://syzkaller.appspot.com/x/log.txt?x=15bd0d0ad00000
kernel config: https://syzkaller.appspot.com/x/.config?x=104119cfe8dba6b3
dashboard link: https://syzkaller.appspot.com/bug?extid=92759a406ff33873f33e

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+92759a...@syzkaller.appspotmail.com

INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 1 PID: 10069 Comm: syz-executor.2 Not tainted 4.14.223-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x1b2/0x281 lib/dump_stack.c:58
register_lock_class+0x32b/0x1320 kernel/locking/lockdep.c:768
__lock_acquire+0x167/0x3f20 kernel/locking/lockdep.c:3378
lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998
__mutex_lock_common kernel/locking/mutex.c:756 [inline]
__mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893
ieee802154_add_seclevel+0x3f/0x70 net/mac802154/cfg.c:373
rdev_add_seclevel net/ieee802154/rdev-ops.h:276 [inline]
nl802154_add_llsec_seclevel+0x179/0x200 net/ieee802154/nl802154.c:2107
genl_family_rcv_msg+0x572/0xb20 net/netlink/genetlink.c:600
genl_rcv_msg+0xaf/0x140 net/netlink/genetlink.c:625
netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2433
genl_rcv+0x24/0x40 net/netlink/genetlink.c:636
netlink_unicast_kernel net/netlink/af_netlink.c:1287 [inline]
netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1313
netlink_sendmsg+0x62e/0xb80 net/netlink/af_netlink.c:1878
sock_sendmsg_nosec net/socket.c:646 [inline]
sock_sendmsg+0xb5/0x100 net/socket.c:656
___sys_sendmsg+0x6c8/0x800 net/socket.c:2062
__sys_sendmsg+0xa3/0x120 net/socket.c:2096
SYSC_sendmsg net/socket.c:2107 [inline]
SyS_sendmsg+0x27/0x40 net/socket.c:2103
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x465f69
RSP: 002b:00007ff49451f188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465f69
RDX: 0000000000000054 RSI: 0000000020000480 RDI: 0000000000000005
RBP: 00000000004bfa67 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffc797b432f R14: 00007ff49451f300 R15: 0000000000022000
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 0 PID: 10069 Comm: syz-executor.2 Not tainted 4.14.223-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88807578a2c0 task.stack: ffff8880782b0000
RIP: 0010:llsec_find_seclevel net/mac802154/llsec.c:481 [inline]
RIP: 0010:mac802154_llsec_seclevel_add+0xae/0x480 net/mac802154/llsec.c:500
RSP: 0018:ffff8880782b7688 EFLAGS: 00010202
RAX: 0000000000000002 RBX: 0000000000000000 RCX: ffffc900088f4000
RDX: 0000000000040000 RSI: ffffffff86dceb33 RDI: ffff8880aa90df10
RBP: ffff8880782b7728 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: ffff88807578a2c0 R12: dffffc0000000000
R13: 0000000000000010 R14: ffff8880aa90df80 R15: 0000000000000002
FS: 00007ff49451f700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000001c1f708 CR3: 000000007639e000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee802154_add_seclevel+0x4e/0x70 net/mac802154/cfg.c:374
rdev_add_seclevel net/ieee802154/rdev-ops.h:276 [inline]
nl802154_add_llsec_seclevel+0x179/0x200 net/ieee802154/nl802154.c:2107
genl_family_rcv_msg+0x572/0xb20 net/netlink/genetlink.c:600
genl_rcv_msg+0xaf/0x140 net/netlink/genetlink.c:625
netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2433
genl_rcv+0x24/0x40 net/netlink/genetlink.c:636
netlink_unicast_kernel net/netlink/af_netlink.c:1287 [inline]
netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1313
netlink_sendmsg+0x62e/0xb80 net/netlink/af_netlink.c:1878
sock_sendmsg_nosec net/socket.c:646 [inline]
sock_sendmsg+0xb5/0x100 net/socket.c:656
___sys_sendmsg+0x6c8/0x800 net/socket.c:2062
__sys_sendmsg+0xa3/0x120 net/socket.c:2096
SYSC_sendmsg net/socket.c:2107 [inline]
SyS_sendmsg+0x27/0x40 net/socket.c:2103
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x465f69
RSP: 002b:00007ff49451f188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465f69
RDX: 0000000000000054 RSI: 0000000020000480 RDI: 0000000000000005
RBP: 00000000004bfa67 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffc797b432f R14: 00007ff49451f300 R15: 0000000000022000
Code: 49 bc 00 00 00 00 00 fc ff df 48 89 44 24 10 48 c1 e8 03 4c 01 e0 48 89 44 24 18 e8 fd 35 78 fa 4c 8d 6b 10 4c 89 e8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 06 0f 8e f7 02 00 00 44 38 7b 10 0f 85
RIP: llsec_find_seclevel net/mac802154/llsec.c:481 [inline] RSP: ffff8880782b7688
RIP: mac802154_llsec_seclevel_add+0xae/0x480 net/mac802154/llsec.c:500 RSP: ffff8880782b7688
---[ end trace 13b3910230d89b3a ]---


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[syzbot]

Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.