syzbot


WARNING: locking bug in look_up_lock_class

Status: closed as invalid on 2019/06/23 12:56
Subsystems: net
[Documentation on labels]
First crash: 1742d, last: 1742d

Sample crash report:
WARNING: CPU: 0 PID: 17530 at kernel/locking/lockdep.c:735 look_up_lock_class+0x179/0x260 kernel/locking/lockdep.c:735
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 17530 Comm: syz-executor.3 Not tainted 5.2.0-rc5+ #4
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+0x1d8/0x2f8 lib/dump_stack.c:113
 panic+0x28a/0x7c9 kernel/panic.c:219
 __warn+0x216/0x220 kernel/panic.c:576
 report_bug+0x190/0x290 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 do_error_trap+0xd7/0x450 arch/x86/kernel/traps.c:272
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:291
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:986
RIP: 0010:look_up_lock_class+0x179/0x260 kernel/locking/lockdep.c:735
Code: ed b1 53 00 4c 8b 33 48 8b 5d d0 48 83 c3 18 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 cc b1 53 00 4c 3b 33 74 5a <0f> 0b eb 56 e8 6e 2b 01 02 45 31 e4 48 c7 c7 f9 76 5b 88 44 89 fe
RSP: 0018:ffff888089a2f460 EFLAGS: 00010083
RAX: 1ffff11011c9f927 RBX: ffff88808e4fc938 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88808e4fc920
RBP: ffff888089a2f490 R08: 0000000000000001 R09: 0000000000000000
R10: ffffffff85edbef5 R11: 0000000000000002 R12: ffffffff893ef0b0
R13: dffffc0000000000 R14: ffffffff887b36a6 R15: 0000000000000000
 register_lock_class+0xde/0x1110 kernel/locking/lockdep.c:1079
 __lock_acquire+0x151/0x1a40 kernel/locking/lockdep.c:3674
 lock_acquire+0x158/0x250 kernel/locking/lockdep.c:4303
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
 _raw_spin_lock_bh+0x34/0x50 kernel/locking/spinlock.c:175
 spin_lock_bh include/linux/spinlock.h:343 [inline]
 lock_sock_nested+0x45/0x120 net/core/sock.c:2916
 lock_sock include/net/sock.h:1522 [inline]
 do_ipv6_setsockopt+0x2e5/0x3bc0 net/ipv6/ipv6_sockglue.c:165
 ipv6_setsockopt+0x51/0x170 net/ipv6/ipv6_sockglue.c:944
 udpv6_setsockopt+0x7b/0x90 net/ipv6/udp.c:1571
 sock_common_setsockopt+0x99/0xb0 net/core/sock.c:3129
 __sys_setsockopt+0x1e2/0x250 net/socket.c:2072
 __do_sys_setsockopt net/socket.c:2083 [inline]
 __se_sys_setsockopt net/socket.c:2080 [inline]
 __x64_sys_setsockopt+0xbf/0xd0 net/socket.c:2080
 do_syscall_64+0xfe/0x140 arch/x86/entry/common.c:301
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4592c9
Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f0ded8ffc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00000000004592c9
RDX: 0000000000000023 RSI: 0000000000000029 RDI: 0000000000000004
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0ded9006d4
R13: 00000000004ce338 R14: 00000000004dcc68 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/06/21 06:37 upstream abf02e2964b3 34bf9440 .config console log report syz ci-upstream-kasan-gce-smack-root
* Struck through repros no longer work on HEAD.