syzbot


INFO: trying to register non-static key in ieee802154_add_llsec_key

Status: upstream: reported C repro on 2021/07/22 15:06
Reported-by: syzbot+aa9e21131d5136f5c2b4@syzkaller.appspotmail.com
First crash: 1253d, last: 793d
Fix bisection: failed (error log, bisect log)
  
Similar bugs (2)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 INFO: trying to register non-static key in ieee802154_add_llsec_key 4 956d 1096d 0/1 auto-obsoleted due to no activity on 2022/09/12 07:42
linux-4.14 INFO: trying to register non-static key in ieee802154_add_llsec_key (2) 3 767d 829d 0/1 auto-obsoleted due to no activity on 2023/03/20 04:39

Sample crash report:
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
CPU: 0 PID: 8111 Comm: syz-executor213 Not tainted 4.19.206-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 assign_lock_key kernel/locking/lockdep.c:728 [inline]
 register_lock_class+0xe82/0x11c0 kernel/locking/lockdep.c:754
 __lock_acquire+0x17d/0x3ff0 kernel/locking/lockdep.c:3304
 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908
 __mutex_lock_common kernel/locking/mutex.c:938 [inline]
 __mutex_lock+0xd7/0x1200 kernel/locking/mutex.c:1083
 ieee802154_add_llsec_key+0x44/0x80 net/mac802154/cfg.c:343
 rdev_add_llsec_key net/ieee802154/rdev-ops.h:260 [inline]
 nl802154_add_llsec_key+0x3e1/0x570 net/ieee802154/nl802154.c:1619
 genl_family_rcv_msg+0x642/0xc40 net/netlink/genetlink.c:602
 genl_rcv_msg+0xbf/0x160 net/netlink/genetlink.c:627
 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2457
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x6bb/0xc40 net/netlink/af_netlink.c:1911
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xc3/0x120 net/socket.c:661
 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227
 __sys_sendmsg net/socket.c:2265 [inline]
 __do_sys_sendmsg net/socket.c:2274 [inline]
 __se_sys_sendmsg net/socket.c:2272 [inline]
 __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f5c95695449
Code: 28 c3 e8 5a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffcb44c1288 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5c95695449
RDX: 0000000000008000 RSI: 0000000020000640 RDI: 0000000000000005
RBP: 00007f5c95658eb0 R08: 0000000000000004 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000246 R12: 00007f5c95658f40
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
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
CPU: 0 PID: 8111 Comm: syz-executor213 Not tainted 4.19.206-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:llsec_key_id_equal+0x24/0x430 net/mac802154/llsec.c:199
Code: 5c c3 0f 1f 40 00 41 56 41 55 41 54 55 48 89 f5 53 48 89 fb e8 dd 48 97 f9 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 aa 02 00 00 48 89 ea 44 0f b6 23 48
RSP: 0018:ffff8880b250f430 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000010 RCX: ffffffff87cb6d16
RDX: 0000000000000002 RSI: ffffffff87cb49e3 RDI: 0000000000000010
RBP: ffff8880b250f598 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: ffffffff8c66401b R12: ffff8880b250f598
R13: ffff8880b250f5d8 R14: ffff888093c46aa0 R15: dffffc0000000000
FS:  0000555556605300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005633b5d20188 CR3: 00000000a45aa000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 mac802154_llsec_key_add+0x147/0xb60 net/mac802154/llsec.c:232
 ieee802154_add_llsec_key+0x56/0x80 net/mac802154/cfg.c:344
 rdev_add_llsec_key net/ieee802154/rdev-ops.h:260 [inline]
 nl802154_add_llsec_key+0x3e1/0x570 net/ieee802154/nl802154.c:1619
 genl_family_rcv_msg+0x642/0xc40 net/netlink/genetlink.c:602
 genl_rcv_msg+0xbf/0x160 net/netlink/genetlink.c:627
 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2457
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:638
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x6bb/0xc40 net/netlink/af_netlink.c:1911
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xc3/0x120 net/socket.c:661
 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227
 __sys_sendmsg net/socket.c:2265 [inline]
 __do_sys_sendmsg net/socket.c:2274 [inline]
 __se_sys_sendmsg net/socket.c:2272 [inline]
 __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f5c95695449
Code: 28 c3 e8 5a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffcb44c1288 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5c95695449
RDX: 0000000000008000 RSI: 0000000020000640 RDI: 0000000000000005
RBP: 00007f5c95658eb0 R08: 0000000000000004 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000246 R12: 00007f5c95658f40
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace dfd856bc57d22466 ]---
RIP: 0010:llsec_key_id_equal+0x24/0x430 net/mac802154/llsec.c:199
Code: 5c c3 0f 1f 40 00 41 56 41 55 41 54 55 48 89 f5 53 48 89 fb e8 dd 48 97 f9 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 aa 02 00 00 48 89 ea 44 0f b6 23 48
RSP: 0018:ffff8880b250f430 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000010 RCX: ffffffff87cb6d16
RDX: 0000000000000002 RSI: ffffffff87cb49e3 RDI: 0000000000000010
RBP: ffff8880b250f598 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: ffffffff8c66401b R12: ffff8880b250f598
R13: ffff8880b250f5d8 R14: ffff888093c46aa0 R15: dffffc0000000000
FS:  0000555556605300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005633b5d20188 CR3: 00000000a45aa000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	5c                   	pop    %rsp
   1:	c3                   	retq
   2:	0f 1f 40 00          	nopl   0x0(%rax)
   6:	41 56                	push   %r14
   8:	41 55                	push   %r13
   a:	41 54                	push   %r12
   c:	55                   	push   %rbp
   d:	48 89 f5             	mov    %rsi,%rbp
  10:	53                   	push   %rbx
  11:	48 89 fb             	mov    %rdi,%rbx
  14:	e8 dd 48 97 f9       	callq  0xf99748f6
  19:	48 89 da             	mov    %rbx,%rdx
  1c:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  23:	fc ff df
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	74 06                	je     0x38
  32:	0f 8e aa 02 00 00    	jle    0x2e2
  38:	48 89 ea             	mov    %rbp,%rdx
  3b:	44 0f b6 23          	movzbl (%rbx),%r12d
  3f:	48                   	rex.W

Crashes (17):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/09/18 12:26 linux-4.19.y b172b44fcb17 70b76c1d .config console log report syz C ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
2022/10/25 14:48 linux-4.19.y 3f8a27f9e27b 45645420 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
2022/10/23 01:09 linux-4.19.y 3f8a27f9e27b c0b80a55 .config console log report info [disk image] [vmlinux] ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
2022/08/24 23:41 linux-4.19.y 3f8a27f9e27b 514514f6 .config console log report info ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
2022/04/26 18:44 linux-4.19.y 3f8a27f9e27b 1fa34c1b .config console log report info ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
2022/01/20 02:33 linux-4.19.y 3f8a27f9e27b 5da9499f .config console log report info ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
2022/01/15 23:00 linux-4.19.y 3f8a27f9e27b 723cfaf0 .config console log report info ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
2021/12/05 05:41 linux-4.19.y 3f8a27f9e27b a617004c .config console log report info ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
2021/11/22 08:52 linux-4.19.y 3f8a27f9e27b 4eb20a4e .config console log report info ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
2021/11/19 03:20 linux-4.19.y 3f8a27f9e27b 31a30fc0 .config console log report info ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
2021/11/14 21:08 linux-4.19.y 3f8a27f9e27b 75b04091 .config console log report info ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
2021/11/13 10:56 linux-4.19.y 3f8a27f9e27b 75b04091 .config console log report info ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
2021/11/12 06:18 linux-4.19.y 3f8a27f9e27b 75b04091 .config console log report info ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
2021/11/12 02:36 linux-4.19.y 3f8a27f9e27b 75b04091 .config console log report info ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
2021/09/18 11:34 linux-4.19.y b172b44fcb17 70b76c1d .config console log report info ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
2021/09/16 16:01 linux-4.19.y b172b44fcb17 aae492f2 .config console log report info ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
2021/07/22 15:05 linux-4.19.y 4938296e03bd 241790bb .config console log report info ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_add_llsec_key
* Struck through repros no longer work on HEAD.