[EXFAT] trying to mount...
------------[ cut here ]------------
[EXFAT] No bh, device seems wrong or to be ejected.
WARNING: CPU: 1 PID: 22562 at drivers/staging/exfat/exfat_blkdev.c:63 bdev_read+0x1ea/0x250 drivers/staging/exfat/exfat_blkdev.c:62
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 22562 Comm: syz-executor.2 Not tainted 5.4.0-rc6+ #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:bdev_read+0x1ea/0x250 drivers/staging/exfat/exfat_blkdev.c:62
Code: 11 d4 fb b8 01 00 00 00 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 b4 11 d4 fb 48 c7 c7 d0 cc 51 88 31 c0 e8 36 aa a6 fb <0f> 0b eb d5 89 d9 80 e1 07 38 c1 0f 8c 7a fe ff ff 48 89 df e8 2d
RSP: 0018:ffff888056a67780 EFLAGS: 00010246
RAX: e9bcd19f77af2200 RBX: 0000000000000000 RCX: 0000000000040000
RDX: ffffc9000a377000 RSI: 00000000000180bb RDI: 00000000000180bc
RBP: ffff888056a677c0 R08: ffffffff815c9e84 R09: ffffed1015d66120
R10: ffffed1015d66120 R11: 0000000000000000 R12: ffff888055280094
R13: ffff888055288174 R14: ffff888056a67950 R15: 1ffff1100ad4cf2a
 sector_read+0x120/0x320 drivers/staging/exfat/exfat_core.c:3615
 ffsMountVol drivers/staging/exfat/exfat_super.c:374 [inline]
 exfat_fill_super+0x11c3/0x27a0 drivers/staging/exfat/exfat_super.c:3869
 mount_bdev+0x27c/0x390 fs/super.c:1415
 exfat_fs_mount+0x34/0x40 drivers/staging/exfat/exfat_super.c:3936
 legacy_get_tree+0xf9/0x1a0 fs/fs_context.c:647
 vfs_get_tree+0x8b/0x2a0 fs/super.c:1545
 do_new_mount fs/namespace.c:2823 [inline]
 do_mount+0x16c0/0x2510 fs/namespace.c:3143
 ksys_mount+0xcc/0x100 fs/namespace.c:3352
 __do_sys_mount fs/namespace.c:3366 [inline]
 __se_sys_mount fs/namespace.c:3363 [inline]
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3363
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45cc6a
Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 4d 8c fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 2a 8c fb ff c3 66 0f 1f 84 00 00 00 00 00
RSP: 002b:00007f8685fa0a88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8685fa0b40 RCX: 000000000045cc6a
RDX: 00007f8685fa0ae0 RSI: 00000000200002c0 RDI: 00007f8685fa0b00
RBP: 0000000000000000 R08: 00007f8685fa0b40 R09: 00007f8685fa0ae0
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000008
R13: 00000000004c9a78 R14: 00000000004e1770 R15: 00000000ffffffff
Kernel Offset: disabled
Rebooting in 86400 seconds..