Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.10.36' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   72.378033][ T8462] loop0: detected capacity change from 4 to 0
[   72.389570][ T8462] ================================================================================
[   72.400179][ T8462] UBSAN: shift-out-of-bounds in fs/erofs/super.c:161:3
[   72.407057][ T8462] shift exponent 59 is too large for 32-bit type 'int'
[   72.414322][ T8462] CPU: 1 PID: 8462 Comm: syz-executor591 Not tainted 5.11.0-rc3-next-20210115-syzkaller #0
[   72.424321][ T8462] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   72.434401][ T8462] Call Trace:
[   72.437682][ T8462]  dump_stack+0x107/0x163
[   72.442030][ T8462]  ubsan_epilogue+0xb/0x5a
[   72.446445][ T8462]  __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181
[   72.453218][ T8462]  erofs_fc_fill_super.cold+0x6c/0x35c
[   72.458767][ T8462]  get_tree_bdev+0x440/0x760
[   72.463354][ T8462]  ? trace_event_raw_event_erofs_readpage+0x5a0/0x5a0
[   72.470115][ T8462]  vfs_get_tree+0x89/0x2f0
[   72.474530][ T8462]  path_mount+0x12ae/0x1e70
[   72.479044][ T8462]  ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70
[   72.485281][ T8462]  ? strncpy_from_user+0x2a0/0x3e0
[   72.490397][ T8462]  ? finish_automount+0xac0/0xac0
[   72.495442][ T8462]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   72.501699][ T8462]  ? getname_flags.part.0+0x1dd/0x4f0
[   72.507079][ T8462]  __x64_sys_mount+0x27f/0x300
[   72.511840][ T8462]  ? copy_mnt_ns+0xae0/0xae0
[   72.516428][ T8462]  ? syscall_enter_from_user_mode+0x1d/0x50
[   72.522605][ T8462]  do_syscall_64+0x2d/0x70
[   72.527016][ T8462]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   72.532923][ T8462] RIP: 0033:0x446d1a
[   72.536811][ T8462] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad 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 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00
[   72.556427][ T8462] RSP: 002b:00007fff68419868 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5
[   72.564850][ T8462] RAX: ffffffffffffffda RBX: 00007fff684198c0 RCX: 0000000000446d1a
[   72.572813][ T8462] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fff68419880
[   72.580788][ T8462] RBP: 00007fff68419880 R08: 00007fff684198c0 R09: 00007fff00000015
[   72.588749][ T8462] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000001
[   72.596711][ T8462] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003
[   72.627414][ T8462] ================================================================================
[   72.643755][ T8462] Kernel panic - not syncing: panic_on_warn set ...
[   72.650452][ T8462] CPU: 1 PID: 8462 Comm: syz-executor591 Not tainted 5.11.0-rc3-next-20210115-syzkaller #0
[   72.660449][ T8462] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   72.670516][ T8462] Call Trace:
[   72.673789][ T8462]  dump_stack+0x107/0x163
[   72.678142][ T8462]  panic+0x306/0x73d
[   72.682130][ T8462]  ? __warn_printk+0xf3/0xf3
[   72.686719][ T8462]  ? ubsan_epilogue+0x3e/0x5a
[   72.691397][ T8462]  ubsan_epilogue+0x54/0x5a
[   72.695894][ T8462]  __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181
[   72.702661][ T8462]  erofs_fc_fill_super.cold+0x6c/0x35c
[   72.708125][ T8462]  get_tree_bdev+0x440/0x760
[   72.712712][ T8462]  ? trace_event_raw_event_erofs_readpage+0x5a0/0x5a0
[   72.719470][ T8462]  vfs_get_tree+0x89/0x2f0
[   72.723885][ T8462]  path_mount+0x12ae/0x1e70
[   72.728399][ T8462]  ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70
[   72.734641][ T8462]  ? strncpy_from_user+0x2a0/0x3e0
[   72.739749][ T8462]  ? finish_automount+0xac0/0xac0
[   72.744769][ T8462]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[   72.751018][ T8462]  ? getname_flags.part.0+0x1dd/0x4f0
[   72.756407][ T8462]  __x64_sys_mount+0x27f/0x300
[   72.761188][ T8462]  ? copy_mnt_ns+0xae0/0xae0
[   72.765773][ T8462]  ? syscall_enter_from_user_mode+0x1d/0x50
[   72.771667][ T8462]  do_syscall_64+0x2d/0x70
[   72.776097][ T8462]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   72.781986][ T8462] RIP: 0033:0x446d1a
[   72.785871][ T8462] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad 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 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00
[   72.805470][ T8462] RSP: 002b:00007fff68419868 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5
[   72.813876][ T8462] RAX: ffffffffffffffda RBX: 00007fff684198c0 RCX: 0000000000446d1a
[   72.821840][ T8462] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fff68419880
[   72.829802][ T8462] RBP: 00007fff68419880 R08: 00007fff684198c0 R09: 00007fff00000015
[   72.837767][ T8462] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000001
[   72.845726][ T8462] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003
[   72.854611][ T8462] Kernel Offset: disabled
[   72.859031][ T8462] Rebooting in 86400 seconds..