WARNING: locking bug in inet

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	WARNING: locking bug in inet_autobind net	4	C	done	error	103	1048d	2371d	22/29	fixed on 2023/06/08 14:41
linux-4.14	WARNING: locking bug in inet_autobind	4				1	2321d	2321d	0/1	auto-closed as invalid on 2019/11/01 17:53
linux-4.19	WARNING: locking bug in inet_autobind	4	C		error	45	1020d	1824d	0/1	upstream: reported C repro on 2020/11/12 14:20

------------[ cut here ]------------ WARNING: CPU: 1 PID: 12098 at kernel/locking/lockdep.c:722 arch_local_save_flags arch/x86/include/asm/paravirt.h:774 [inline] WARNING: CPU: 1 PID: 12098 at kernel/locking/lockdep.c:722 arch_local_save_flags arch/x86/include/asm/paravirt.h:772 [inline] WARNING: CPU: 1 PID: 12098 at kernel/locking/lockdep.c:722 look_up_lock_class kernel/locking/lockdep.c:713 [inline] WARNING: CPU: 1 PID: 12098 at kernel/locking/lockdep.c:722 register_lock_class+0xd7e/0x1600 kernel/locking/lockdep.c:756 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 12098 Comm: syz-executor.4 Not tainted 4.14.176-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+0x13e/0x194 lib/dump_stack.c:58 panic+0x1f9/0x42d kernel/panic.c:183 __warn.cold+0x2f/0x30 kernel/panic.c:547 report_bug+0x20a/0x248 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+0x195/0x2d0 arch/x86/kernel/traps.c:295 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+0xd7e/0x1600 kernel/locking/lockdep.c:756 RSP: 0018:ffff8880360dfa68 EFLAGS: 00010087 RAX: dffffc0000000000 RBX: ffffffff8a588b00 RCX: ffff88808eb4d8e0 RDX: 1ffff11011d69b1f RSI: 0000000000000000 RDI: ffff88808eb4d8f8 RBP: 1ffff11006c1bf57 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff8a0a1108 R11: 0000000000000000 R12: ffffffff8a114ee0 R13: ffffffff87381580 R14: 0000000000000000 R15: ffffffff8b0271b0 __lock_acquire+0x147/0x4620 kernel/locking/lockdep.c:3374 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3994 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:176 spin_lock_bh include/linux/spinlock.h:322 [inline] lock_sock_nested+0x39/0x100 net/core/sock.c:2765 lock_sock include/net/sock.h:1467 [inline] inet_autobind+0x1a/0x180 net/ipv4/af_inet.c:178 inet_dgram_connect+0x134/0x1f0 net/ipv4/af_inet.c:538 SYSC_connect+0x1c6/0x250 net/socket.c:1655 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c889 RSP: 002b:00007ff7fb1a6c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007ff7fb1a76d4 RCX: 000000000045c889 RDX: 000000000000001c RSI: 0000000020000040 RDI: 0000000000000006 RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000084 R14: 00000000004c320f R15: 000000000076bfac Kernel Offset: disabled Rebooting in 86400 seconds..