------------[ cut here ]------------ [EXFAT] No bh, device seems wrong or to be ejected. WARNING: CPU: 0 PID: 14378 at drivers/staging/exfat/exfat_blkdev.c:62 exfat_bdev_read+0x24a/0x2b0 drivers/staging/exfat/exfat_blkdev.c:62 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 14378 Comm: syz-executor.2 Not tainted 5.6.0-rc3-next-20200228-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+0x188/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x35 kernel/panic.c:582 report_bug+0x27b/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:175 [inline] fixup_bug arch/x86/kernel/traps.c:170 [inline] do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:267 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:exfat_bdev_read+0x24a/0x2b0 drivers/staging/exfat/exfat_blkdev.c:62 Code: 00 00 31 ff 41 bc fb ff ff ff 89 de e8 4f 09 9a fb 85 db 0f 85 5d ff ff ff e8 d2 07 9a fb 48 c7 c7 60 ef cd 88 e8 3e d3 6b fb <0f> 0b e9 45 ff ff ff e8 4a 28 d7 fb e9 ad fe ff ff e8 20 28 d7 fb RSP: 0018:ffffc90004507b38 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000023099 RSI: ffffffff815c4e91 RDI: fffff520008a0f59 RBP: ffffc90004507c70 R08: ffff88808df10640 R09: ffffed1015cc6661 R10: ffffed1015cc6660 R11: ffff8880ae633307 R12: 00000000fffffffb R13: ffff888056960000 R14: 0000000000000001 R15: 0000000000000000 sector_read+0x13a/0x1e0 drivers/staging/exfat/exfat_core.c:2451 ffsMountVol drivers/staging/exfat/exfat_super.c:376 [inline] exfat_fill_super.cold+0x2e4/0x895 drivers/staging/exfat/exfat_super.c:3236 mount_bdev+0x305/0x3c0 fs/super.c:1417 legacy_get_tree+0x105/0x220 fs/fs_context.c:622 vfs_get_tree+0x89/0x2f0 fs/super.c:1547 do_new_mount fs/namespace.c:2822 [inline] do_mount+0x1306/0x1a60 fs/namespace.c:3107 __do_sys_mount fs/namespace.c:3316 [inline] __se_sys_mount fs/namespace.c:3293 [inline] __x64_sys_mount+0x18f/0x230 fs/namespace.c:3293 do_syscall_64+0xf6/0x790 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45f29a 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:00007f8c7efa0a68 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f8c7efa16d4 RCX: 000000000045f29a RDX: 00007f8c7efa0ae0 RSI: 00000000200000c0 RDI: 00007f8c7efa0b00 RBP: 000000000076bf00 R08: 00007f8c7efa0b40 R09: 00007f8c7efa0ae0 R10: 0000000000008401 R11: 0000000000000206 R12: 00000000ffffffff R13: 0000000000000bdb R14: 00000000004cdf8c R15: 000000000076bf0c Kernel Offset: disabled Rebooting in 86400 seconds..