syzbot


INFO: trying to register non-static key in ieee802154_del_llsec_key

Status: auto-closed as invalid on 2021/08/16 09:53
Reported-by: syzbot+9b9ca7b7239e7514c879@syzkaller.appspotmail.com
First crash: 445d, last: 445d
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 INFO: trying to register non-static key in ieee802154_del_llsec_key (2) 3 64d 76d 0/1 upstream: reported on 2022/04/22 01:06
linux-4.19 INFO: trying to register non-static key in ieee802154_del_llsec_key 2 327d 352d 0/1 auto-closed as invalid on 2021/12/12 04:50
linux-4.19 INFO: trying to register non-static key in ieee802154_del_llsec_key (2) 1 162d 162d 0/1 auto-closed as invalid on 2022/05/26 14:58

Sample crash report:
INFO: trying to register non-static key.
the code is fine but needs lockdep annotation.
turning off the locking correctness validator.
CPU: 0 PID: 14341 Comm: syz-executor.5 Not tainted 4.14.231-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_del_llsec_key+0x3f/0x70 net/mac802154/cfg.c:358
 rdev_del_llsec_key net/ieee802154/rdev-ops.h:268 [inline]
 nl802154_del_llsec_key+0x226/0x2e0 net/ieee802154/nl802154.c:1633
 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: 0033:0x466459
RSP: 002b:00007f506c8e3188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 0000000000000000 RSI: 00000000200003c0 RDI: 0000000000000004
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007fff4f766dbf R14: 00007f506c8e3300 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: 14341 Comm: syz-executor.5 Not tainted 4.14.231-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88809ba22640 task.stack: ffff888091d40000
RIP: 0010:llsec_key_id_equal+0x22/0x390 net/mac802154/llsec.c:199
RSP: 0018:ffff888091d47620 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000010 RCX: ffffc90006114000
RDX: 0000000000000002 RSI: ffffffff86ddef81 RDI: 0000000000000010
RBP: ffff888091d476d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: ffff88809ba22640 R12: ffff8880929b1560
R13: dffffc0000000000 R14: ffff8880929b1410 R15: ffff888091d476d0
FS:  00007f506c8e3700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff895709108 CR3: 0000000079e89000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 mac802154_llsec_key_del+0x7f/0x200 net/mac802154/llsec.c:286
 ieee802154_del_llsec_key+0x4e/0x70 net/mac802154/cfg.c:359
 rdev_del_llsec_key net/ieee802154/rdev-ops.h:268 [inline]
 nl802154_del_llsec_key+0x226/0x2e0 net/ieee802154/nl802154.c:1633
 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: 0033:0x466459
RSP: 002b:00007f506c8e3188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459
RDX: 0000000000000000 RSI: 00000000200003c0 RDI: 0000000000000004
RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007fff4f766dbf R14: 00007f506c8e3300 R15: 0000000000022000
Code: 89 e0 41 5c c3 0f 1f 40 00 41 55 41 54 55 48 89 f5 53 48 89 fb e8 ef 35 77 fa 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 84 c0 74 06 0f 8e 31 02 00 00 48 89 ea 44 0f b6 23 
RIP: llsec_key_id_equal+0x22/0x390 net/mac802154/llsec.c:199 RSP: ffff888091d47620
---[ end trace 6f8a67eb74ed40cd ]---

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2021/04/18 09:52 linux-4.14.y cf256fbcbe34 7e2b734b .config log report info INFO: trying to register non-static key in ieee802154_del_llsec_key