WARNING in __blkdev

Kernel	Title	Repro	Count	Last	Reported	Patched	Status
upstream	WARNING in __blkdev_put fs		2	2238d	2237d	0/28	auto-closed as invalid on 2019/04/07 01:07
upstream	WARNING in __blkdev_put (2) fs	syz	3082	1931d	1938d	12/28	fixed on 2019/09/06 20:45
android-49	WARNING in __blkdev_put		1	2318d	2318d	0/3	auto-closed as invalid on 2019/02/22 14:29

loop4: p1 < > p3 < > loop5: p1 < > p3 < > loop2: p1 < > p3 < > loop3: p1 < > p3 < > loop1: p1 < > p3 < > WARNING: CPU: 0 PID: 11484 at fs/block_dev.c:1811 __blkdev_put+0x68c/0x870 fs/block_dev.c:1811 Kernel panic - not syncing: panic_on_warn set ... loop0: p1 < > p3 < > CPU: 0 PID: 11484 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2022 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:__blkdev_put+0x68c/0x870 fs/block_dev.c:1811 Code: 8d 7c 24 30 48 89 f8 48 c1 e8 03 42 80 3c 38 00 0f 85 ee 01 00 00 49 8b 7c 24 30 e8 3e 06 cb ff e9 5d fa ff ff e8 c4 a3 b0 ff <0f> 0b e9 1c fb ff ff 48 c7 04 24 08 00 00 00 e9 44 fa ff ff e8 ab RSP: 0018:ffff888092c8fd20 EFLAGS: 00010293 RAX: ffff88808f750000 RBX: ffff88808e400900 RCX: ffffffff81b1dcc7 RDX: 0000000000000000 RSI: ffffffff81b1e1ac RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff88808e400a98 R13: ffff88808e400904 R14: ffffffff81b1e8b0 R15: dffffc0000000000 blkdev_close+0x86/0xb0 fs/block_dev.c:1888 __fput+0x2ce/0x890 fs/file_table.c:278 task_work_run+0x148/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f882e82141b Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007f882dfe2ec0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 00007f882dfe2f20 RCX: 00007f882e82141b RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000004 RBP: 00007f882dfe36b8 R08: 0000000000000000 R09: 00007f882dfe2d70 R10: 00007f882dfe2c27 R11: 0000000000000293 R12: 0000000000000008 R13: 0000000000000000 R14: 0000000000000002 R15: 00007f882dfe2f60 Kernel Offset: disabled Rebooting in 86400 seconds..