Warning: Permanently added '10.128.0.138' (ECDSA) to the list of known hosts.
executing program
[   42.646712][ T3963] loop0: detected capacity change from 0 to 512
[   42.651441][ T3963] ================================================================================
[   42.653833][ T3963] UBSAN: shift-out-of-bounds in fs/ext2/super.c:950:25
[   42.655292][ T3963] shift exponent 63 is too large for 32-bit type 'int'
[   42.656774][ T3963] CPU: 0 PID: 3963 Comm: syz-executor132 Not tainted 5.15.110-syzkaller #0
[   42.658641][ T3963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
[   42.660683][ T3963] Call trace:
[   42.661322][ T3963]  dump_backtrace+0x0/0x530
[   42.662353][ T3963]  show_stack+0x2c/0x3c
[   42.663267][ T3963]  dump_stack_lvl+0x108/0x170
[   42.664280][ T3963]  dump_stack+0x1c/0x58
[   42.665115][ T3963]  __ubsan_handle_shift_out_of_bounds+0x2f8/0x378
[   42.666498][ T3963]  ext2_fill_super+0x2124/0x2390
[   42.667564][ T3963]  mount_bdev+0x26c/0x368
[   42.668518][ T3963]  ext2_mount+0x44/0x58
[   42.669383][ T3963]  legacy_get_tree+0xd4/0x16c
[   42.670387][ T3963]  vfs_get_tree+0x90/0x274
[   42.671344][ T3963]  do_new_mount+0x25c/0x8c8
[   42.672352][ T3963]  path_mount+0x590/0x104c
[   42.673235][ T3963]  __arm64_sys_mount+0x510/0x5e0
[   42.674320][ T3963]  invoke_syscall+0x98/0x2b8
[   42.675275][ T3963]  el0_svc_common+0x138/0x258
[   42.676276][ T3963]  do_el0_svc+0x58/0x14c
[   42.677183][ T3963]  el0_svc+0x7c/0x1f0
[   42.678027][ T3963]  el0t_64_sync_handler+0x84/0xe4
[   42.679033][ T3963]  el0t_64_sync+0x1a0/0x1a4
[   42.680078][ T3963] ================================================================================
[   42.682895][ T3963] EXT2-fs (loop0): error: bad blocksize 0