WARNING: locking bug in inet

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.14	WARNING: locking bug in inet_autobind (2)	4				1	2302d	2302d	0/1	auto-closed as invalid on 2020/08/15 18:15
upstream	WARNING: locking bug in inet_autobind net	4	syz, C	done	error	103	1316d	2639d	22/29	fixed on 2023/06/08 14:41
linux-4.19	WARNING: locking bug in inet_autobind	4	syz, C		error	45	1288d	2093d	0/1	upstream: reported C repro on 2020/11/12 14:20

------------[ cut here ]------------ WARNING: CPU: 1 PID: 8550 at kernel/locking/lockdep.c:722 arch_local_save_flags arch/x86/include/asm/paravirt.h:773 [inline] WARNING: CPU: 1 PID: 8550 at kernel/locking/lockdep.c:722 arch_local_save_flags arch/x86/include/asm/paravirt.h:771 [inline] WARNING: CPU: 1 PID: 8550 at kernel/locking/lockdep.c:722 look_up_lock_class kernel/locking/lockdep.c:713 [inline] WARNING: CPU: 1 PID: 8550 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: 1 PID: 8550 Comm: syz-executor.5 Not tainted 4.14.132 #26 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+0x138/0x19c lib/dump_stack.c:53 panic+0x1f2/0x426 kernel/panic.c:182 audit: type=1800 audit(1562262745.790:58): pid=8561 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="collect_data" cause="failed(directio)" comm="syz-executor.2" name="file0" dev="sda1" ino=16745 res=0 __warn.cold+0x2f/0x36 kernel/panic.c:546 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:960 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:ffff88807a7cfa00 EFLAGS: 00010083 RAX: dffffc0000000000 RBX: ffffffff891a46c0 RCX: ffff88806b2400a0 RDX: 1ffff1100d648017 RSI: 1ffffffff11a4d7e RDI: ffff88806b2400b8 RBP: ffff88807a7cfac0 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff88cbc828 R11: 0000000000000000 R12: ffffffff88d26bd0 R13: 1ffff1100f4f9f4b R14: ffffffff86eea700 R15: 0000000000000000 __lock_acquire+0x147/0x45e0 kernel/locking/lockdep.c:3374 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3991 __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:2757 lock_sock include/net/sock.h:1462 [inline] inet_autobind+0x20/0x180 net/ipv4/af_inet.c:178 inet_dgram_connect+0x136/0x1e0 net/ipv4/af_inet.c:538 SYSC_connect+0x1f6/0x2d0 net/socket.c:1655 SyS_connect+0x24/0x30 net/socket.c:1636 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x4597c9 RSP: 002b:00007f911d02fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004597c9 RDX: 000000000000001c RSI: 0000000020000000 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f911d0306d4 R13: 00000000004bfd07 R14: 00000000004d1838 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds..