WARNING in process_one

Kernel	Title	Repro	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.14	WARNING in process_one_work	C	inconclusive	7	1618d	1854d	0/1	upstream: reported C repro on 2019/10/25 11:01
linux-5.15	WARNING in process_one_work	syz		115	13h13m	614d	0/3	upstream: reported syz repro on 2023/03/18 12:00
linux-4.19	WARNING in process_one_work	C	done	9	1256d	1821d	1/1	fixed on 2021/07/14 12:04

sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 ___sys_sendmsg+0x3b3/0x8e0 net/socket.c:2227 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 8140 at net/bluetooth/hci_conn.c:404 hci_conn_timeout.cold+0x11/0x18 net/bluetooth/hci_conn.c:404 Kernel panic - not syncing: panic_on_warn set ... __sys_sendmmsg+0x195/0x470 net/socket.c:2322 __do_sys_sendmmsg net/socket.c:2351 [inline] __se_sys_sendmmsg net/socket.c:2348 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2348 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f233b8a5279 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f233a21a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f233b9b7f80 RCX: 00007f233b8a5279 RDX: 0400000000000107 RSI: 0000000020008440 RDI: 0000000000000004 RBP: 00007f233a21a1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007ffe15d7f4af R14: 00007f233a21a300 R15: 0000000000022000 CPU: 0 PID: 8140 Comm: kworker/u5:3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Workqueue: hci3 hci_conn_timeout Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 __warn.cold+0x20/0x5a kernel/panic.c:541 report_bug+0x262/0x2b0 lib/bug.c:183 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038 RIP: 0010:hci_conn_timeout.cold+0x11/0x18 net/bluetooth/hci_conn.c:404 Code: 53 24 ff e8 c7 e2 4e f9 e8 12 a6 84 f9 48 c7 c7 80 92 5d 89 e8 32 bc 02 00 e8 b1 e2 4e f9 48 c7 c7 e0 99 5d 89 e8 10 14 e0 ff <0f> 0b e9 51 03 25 ff e8 99 e2 4e f9 e8 e4 a5 84 f9 48 c7 c7 c0 af RSP: 0018:ffff8880ab677d10 EFLAGS: 00010286 RAX: 0000000000000024 RBX: ffff8880968c0aa0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed10156cef94 RBP: 00000000ffffffff R08: 0000000000000024 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880968c0980 R13: ffff8880ab1bf600 R14: ffff8880b24976c0 R15: ffff888096488800 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 Kernel Offset: disabled Rebooting in 86400 seconds..