syzbot


INFO: trying to register non-static key in ieee802154_del_llsec_key

Status: auto-closed as invalid on 2021/12/12 04:50
Reported-by: syzbot+5e1ab7a45adddec93a47@syzkaller.appspotmail.com
First crash: 1503d, last: 1478d
Similar bugs (4)
Kernel Title Rank 🛈 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) -1 7 937d 1227d 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) -1 1 1313d 1313d 0/1 auto-closed as invalid on 2022/05/26 14:58
linux-4.14 INFO: trying to register non-static key in ieee802154_del_llsec_key -1 1 1596d 1596d 0/1 auto-closed as invalid on 2021/08/16 09:53
linux-4.19 INFO: trying to register non-static key in ieee802154_del_llsec_key (3) -1 3 938d 1125d 0/1 upstream: reported on 2022/08/02 08:55

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: 20159 Comm: syz-executor.0 Not tainted 4.19.203-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_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+0x24f/0x330 net/ieee802154/nl802154.c:1639
 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:2225
 __sys_sendmsg net/socket.c:2263 [inline]
 __do_sys_sendmsg net/socket.c:2272 [inline]
 __se_sys_sendmsg net/socket.c:2270 [inline]
 __x64_sys_sendmsg+0x132/0x220 net/socket.c:2270
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4665e9
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:00007f81d0713188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000004
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffd0cc59aaf R14: 00007f81d0713300 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
CPU: 0 PID: 20159 Comm: syz-executor.0 Not tainted 4.19.203-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 3d 5f 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:ffff888092517560 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000010 RCX: ffffc90008a09000
RDX: 0000000000000002 RSI: ffffffff87cb3353 RDI: 0000000000000010
RBP: ffff888092517618 R08: 0000000000000000 R09: ffffed100fa50af2
R10: ffff88807d285797 R11: ffffffff8c66401b R12: ffff888092517618
R13: ffff88807d285860 R14: dffffc0000000000 R15: ffff888092517618
FS:  00007f81d0713700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe7ebfd2000 CR3: 000000009c3e4000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 mac802154_llsec_key_del+0x7f/0x210 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+0x24f/0x330 net/ieee802154/nl802154.c:1639
 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:2225
 __sys_sendmsg net/socket.c:2263 [inline]
 __do_sys_sendmsg net/socket.c:2272 [inline]
 __se_sys_sendmsg net/socket.c:2270 [inline]
 __x64_sys_sendmsg+0x132/0x220 net/socket.c:2270
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4665e9
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:00007f81d0713188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000004
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffd0cc59aaf R14: 00007f81d0713300 R15: 0000000000022000
Modules linked in:
---[ end trace 2c9dfa1d54b0f9be ]---
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 3d 5f 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:ffff888092517560 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000010 RCX: ffffc90008a09000
RDX: 0000000000000002 RSI: ffffffff87cb3353 RDI: 0000000000000010
RBP: ffff888092517618 R08: 0000000000000000 R09: ffffed100fa50af2
R10: ffff88807d285797 R11: ffffffff8c66401b R12: ffff888092517618
R13: ffff88807d285860 R14: dffffc0000000000 R15: ffff888092517618
FS:  00007f81d0713700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000540198 CR3: 000000009c3e4000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	nopw   %cs:0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	0f 1f 40 00          	nopl   0x0(%rax)
  10:	48 89 f8             	mov    %rdi,%rax
  13:	48 89 f7             	mov    %rsi,%rdi
  16:	48 89 d6             	mov    %rdx,%rsi
  19:	48 89 ca             	mov    %rcx,%rdx
  1c:	4d 89 c2             	mov    %r8,%r10
  1f:	4d 89 c8             	mov    %r9,%r8
  22:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  27:	0f 05                	syscall 
  29:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax <-- trapping instruction
  2f:	73 01                	jae    0x32
  31:	c3                   	retq   
  32:	48 c7 c1 bc ff ff ff 	mov    $0xffffffffffffffbc,%rcx
  39:	f7 d8                	neg    %eax
  3b:	64 89 01             	mov    %eax,%fs:(%rcx)
  3e:	48                   	rex.W

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/08/14 04:49 linux-4.19.y addba38e7c3b 2489ab88 .config console log report info ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_del_llsec_key
2021/07/20 01:55 linux-4.19.y fcfbdfe9626e bc48c9ab .config console log report info ci2-linux-4-19 INFO: trying to register non-static key in ieee802154_del_llsec_key
* Struck through repros no longer work on HEAD.