WARNING: CPU: 0 PID: 25017 at block/blk-core.c:800 bio_check_ro block/blk-core.c:797 [inline]
WARNING: CPU: 0 PID: 25017 at block/blk-core.c:800 generic_make_request_checks+0x633/0x1a60 block/blk-core.c:902
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 25017 Comm: syz-executor.0 Not tainted 5.4.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fb/0x318 lib/dump_stack.c:118
 panic+0x264/0x7a9 kernel/panic.c:221
 __warn+0x20e/0x210 kernel/panic.c:582
 report_bug+0x1b6/0x2f0 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 do_error_trap+0xd7/0x440 arch/x86/kernel/traps.c:272
 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:291
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028
RIP: 0010:bio_check_ro block/blk-core.c:797 [inline]
RIP: 0010:generic_make_request_checks+0x633/0x1a60 block/blk-core.c:902
Code: 3c 05 00 00 4c 89 f8 48 c1 e8 03 8a 04 08 84 c0 0f 85 17 14 00 00 41 8b 17 48 c7 c7 73 98 40 88 4c 89 f6 31 c0 e8 0d 5d 14 fe <0f> 0b e9 35 fc ff ff e8 41 c6 41 fe c6 05 36 56 89 05 01 48 c7 c7
RSP: 0018:ffff8880731a7960 EFLAGS: 00010246
RAX: cfb8c13fb2a93500 RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffffc90005c31000 RSI: 000000000001563b RDI: 000000000001563c
RBP: ffff8880731a7a20 R08: ffffffff815cc074 R09: ffffed1015d46120
R10: ffffed1015d46120 R11: 0000000000000000 R12: ffff8880958a7a08
R13: 1ffff11012b14f41 R14: ffff8880731a79c0 R15: ffff888092de153c
 generic_make_request+0x33/0x980 block/blk-core.c:1018
 submit_bio+0x26b/0x540 block/blk-core.c:1190
 submit_bh_wbc+0x619/0x700 fs/buffer.c:3095
 submit_bh fs/buffer.c:3101 [inline]
 __sync_dirty_buffer+0x1a2/0x2d0 fs/buffer.c:3187
 sync_dirty_buffer+0x1a/0x20 fs/buffer.c:3200
 fat_set_state+0x261/0x340 fs/fat/inode.c:708
 fat_put_super+0x48/0xc0 fs/fat/inode.c:734
 generic_shutdown_super+0x13f/0x2c0 fs/super.c:462
 kill_block_super+0x80/0xe0 fs/super.c:1442
 deactivate_locked_super+0xa8/0x100 fs/super.c:335
 deactivate_super+0x16c/0x200 fs/super.c:366
 cleanup_mnt+0x43b/0x4f0 fs/namespace.c:1102
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1109
 task_work_run+0x17e/0x1b0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_usermode_loop arch/x86/entry/common.c:163 [inline]
 prepare_exit_to_usermode+0x459/0x580 arch/x86/entry/common.c:194
 syscall_return_slowpath+0x113/0x4a0 arch/x86/entry/common.c:274
 do_syscall_64+0x11f/0x1c0 arch/x86/entry/common.c:300
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45a639
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f8f550b0c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000002 RCX: 000000000045a639
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000020000540
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8f550b16d4
R13: 00000000004ca580 R14: 00000000004e24f8 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..