syzbot


WARNING: locking bug in inet6_bind

Status: auto-closed as invalid on 2020/03/27 14:46
Reported-by: syzbot+762c230bd138f942303d@syzkaller.appspotmail.com
First crash: 939d, last: 939d

Sample crash report:
program syz-executor.1 is using a deprecated SCSI ioctl, please convert it to SG_IO
sd 0:0:1:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x20 ascq=0x0
program syz-executor.1 is using a deprecated SCSI ioctl, please convert it to SG_IO
sd 0:0:1:0: ioctl_internal_command: ILLEGAL REQUEST asc=0x20 ascq=0x0
------------[ cut here ]------------
WARNING: CPU: 0 PID: 9847 at kernel/locking/lockdep.c:722 arch_local_save_flags arch/x86/include/asm/paravirt.h:774 [inline]
WARNING: CPU: 0 PID: 9847 at kernel/locking/lockdep.c:722 arch_local_save_flags arch/x86/include/asm/paravirt.h:772 [inline]
WARNING: CPU: 0 PID: 9847 at kernel/locking/lockdep.c:722 look_up_lock_class kernel/locking/lockdep.c:713 [inline]
WARNING: CPU: 0 PID: 9847 at kernel/locking/lockdep.c:722 register_lock_class+0xd80/0x1730 kernel/locking/lockdep.c:756
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 9847 Comm: syz-executor.0 Not tainted 4.14.156-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+0x142/0x197 lib/dump_stack.c:58
 panic+0x1f9/0x42d kernel/panic.c:183
 __warn.cold+0x2f/0x2f kernel/panic.c:547
 report_bug+0x216/0x254 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:177 [inline]
 fixup_bug arch/x86/kernel/traps.c:172 [inline]
 do_error_trap+0x1bb/0x310 arch/x86/kernel/traps.c:295
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:314
 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:963
RIP: 0010:look_up_lock_class kernel/locking/lockdep.c:722 [inline]
RIP: 0010:register_lock_class+0xd80/0x1730 kernel/locking/lockdep.c:756
RSP: 0018:ffff88805a7079d0 EFLAGS: 00010083
RAX: dffffc0000000000 RBX: ffffffff891b0840 RCX: ffff888087129920
RDX: 1ffff11010e25327 RSI: 1ffffffff11a6602 RDI: ffff888087129938
RBP: ffff88805a707a90 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff88cc72e0 R11: 0000000000000000 R12: ffffffff88d32ff0
R13: 1ffff1100b4e0f45 R14: ffffffff86eed080 R15: 0000000000000000
 __lock_acquire+0x147/0x4620 kernel/locking/lockdep.c:3374
 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
 _raw_spin_lock_bh+0x33/0x50 kernel/locking/spinlock.c:176
 spin_lock_bh include/linux/spinlock.h:322 [inline]
 lock_sock_nested+0x3f/0x110 net/core/sock.c:2762
 lock_sock include/net/sock.h:1462 [inline]
 inet6_bind+0x2c4/0x1444 net/ipv6/af_inet6.c:310
 SYSC_bind+0x1d3/0x220 net/socket.c:1489
 SyS_bind+0x24/0x30 net/socket.c:1475
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45a679
RSP: 002b:00007f551246ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a679
RDX: 000000000000001c RSI: 0000000020000000 RDI: 000000000000000f
RBP: 000000000075bfc8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f551246f6d4
R13: 00000000004c0a0f R14: 00000000004d37f8 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2019/11/28 14:45 linux-4.14.y 43598c571e7e 97264cb1 .config log report