Warning: Permanently added '10.128.0.199' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 77.582562][ T8911] [EXFAT] trying to mount... [ 77.587559][ T8911] ------------[ cut here ]------------ [ 77.593184][ T8911] [EXFAT] No bh, device seems wrong or to be ejected. [ 77.600275][ T8911] WARNING: CPU: 0 PID: 8911 at drivers/staging/exfat/exfat_blkdev.c:62 bdev_read+0x258/0x2b0 [ 77.610414][ T8911] Kernel panic - not syncing: panic_on_warn set ... [ 77.616980][ T8911] CPU: 0 PID: 8911 Comm: syz-executor516 Not tainted 5.4.0-syzkaller #0 [ 77.625278][ T8911] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.635311][ T8911] Call Trace: [ 77.638584][ T8911] dump_stack+0x197/0x210 [ 77.642906][ T8911] ? bdev_read+0x1d0/0x2b0 [ 77.647302][ T8911] panic+0x2e3/0x75c [ 77.651174][ T8911] ? add_taint.cold+0x16/0x16 [ 77.655844][ T8911] ? __kasan_check_write+0x14/0x20 [ 77.660932][ T8911] ? __warn.cold+0x14/0x35 [ 77.665322][ T8911] ? __warn+0xd9/0x1d0 [ 77.669369][ T8911] ? bdev_read+0x258/0x2b0 [ 77.673761][ T8911] __warn.cold+0x2f/0x35 [ 77.677978][ T8911] ? bdev_read+0x258/0x2b0 [ 77.682375][ T8911] report_bug+0x289/0x300 [ 77.686697][ T8911] do_error_trap+0x11b/0x200 [ 77.691668][ T8911] do_invalid_op+0x37/0x50 [ 77.696063][ T8911] ? bdev_read+0x258/0x2b0 [ 77.700458][ T8911] invalid_op+0x23/0x30 [ 77.704605][ T8911] RIP: 0010:bdev_read+0x258/0x2b0 [ 77.709609][ T8911] Code: ff df 80 3c 02 00 0f 84 51 ff ff ff 4c 89 e7 e8 ae 33 38 fc e9 44 ff ff ff e8 04 f5 fb fb 48 c7 c7 20 bc 3d 88 e8 40 27 cd fb <0f> 0b eb 8a e8 8f 32 38 fc e9 17 fe ff ff e8 c5 32 38 fc e9 99 fe [ 77.729205][ T8911] RSP: 0018:ffff88809d0e7ad0 EFLAGS: 00010282 [ 77.735247][ T8911] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 77.743195][ T8911] RDX: 0000000000000000 RSI: ffffffff815db046 RDI: ffffed1013a1cf4c [ 77.751144][ T8911] RBP: ffff88809d0e7b10 R08: ffff888092102680 R09: ffffed1015d06211 [ 77.759091][ T8911] R10: ffffed1015d06210 R11: ffff8880ae831087 R12: 0000000000000000 [ 77.767039][ T8911] R13: ffff888089da0000 R14: 0000000000000001 R15: 0000000000000200 [ 77.775002][ T8911] ? vprintk_func+0x86/0x189 [ 77.779577][ T8911] sector_read+0x156/0x1e0 [ 77.783973][ T8911] exfat_fill_super.cold+0x4d6/0xdba [ 77.789235][ T8911] ? exfat_read_root+0x8d0/0x8d0 [ 77.794165][ T8911] ? vsprintf+0x40/0x40 [ 77.798296][ T8911] ? wait_for_completion+0x440/0x440 [ 77.803572][ T8911] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 77.810240][ T8911] ? set_blocksize+0x2bf/0x340 [ 77.814988][ T8911] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.821229][ T8911] mount_bdev+0x304/0x3c0 [ 77.825537][ T8911] ? exfat_read_root+0x8d0/0x8d0 [ 77.830454][ T8911] exfat_fs_mount+0x35/0x40 [ 77.834942][ T8911] ? exfat_remount+0x50/0x50 [ 77.839509][ T8911] legacy_get_tree+0x108/0x220 [ 77.844254][ T8911] vfs_get_tree+0x8e/0x300 [ 77.848661][ T8911] do_mount+0x1369/0x1b60 [ 77.853015][ T8911] ? copy_mount_string+0x40/0x40 [ 77.857957][ T8911] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 77.864254][ T8911] ? _copy_from_user+0x12c/0x1a0 [ 77.869182][ T8911] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 77.875412][ T8911] ? copy_mount_options+0x2e8/0x3f0 [ 77.880603][ T8911] ksys_mount+0xdb/0x150 [ 77.884832][ T8911] __x64_sys_mount+0xbe/0x150 [ 77.889535][ T8911] do_syscall_64+0xfa/0x760 [ 77.894035][ T8911] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 77.899905][ T8911] RIP: 0033:0x440239 [ 77.903890][ T8911] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 77.924267][ T8911] RSP: 002b:00007ffff525b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 77.932657][ T8911] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 0000000000440239 [ 77.940613][ T8911] RDX: 0000000020000080 RSI: 0000000020000100 RDI: 0000000020000140 [ 77.948577][ T8911] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 77.956527][ T8911] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401ac0 [ 77.964475][ T8911] R13: 0000000000401b50 R14: 0000000000000000 R15: 0000000000000000 [ 77.973823][ T8911] Kernel Offset: disabled [ 77.978216][ T8911] Rebooting in 86400 seconds..