Warning: Permanently added '10.128.0.154' (ECDSA) to the list of known hosts. executing program [ 41.924895][ T5922] loop0: detected capacity change from 0 to 512 [ 41.930482][ T5922] ================================================================================ [ 41.932889][ T5922] UBSAN: shift-out-of-bounds in fs/ext2/super.c:948:25 [ 41.934729][ T5922] shift exponent 32 is too large for 32-bit type 'int' [ 41.936518][ T5922] CPU: 1 PID: 5922 Comm: syz-executor396 Not tainted 6.2.0-syzkaller-18295-ga9b06ec42c0f #0 [ 41.939035][ T5922] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 41.941523][ T5922] Call trace: [ 41.942282][ T5922] dump_backtrace+0x1c8/0x1f4 [ 41.943543][ T5922] show_stack+0x2c/0x3c [ 41.944591][ T5922] dump_stack_lvl+0xd0/0x124 [ 41.945716][ T5922] dump_stack+0x1c/0x28 [ 41.946775][ T5922] __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c [ 41.948455][ T5922] ext2_fill_super+0x2074/0x23fc [ 41.949747][ T5922] mount_bdev+0x26c/0x368 [ 41.950943][ T5922] ext2_mount+0x44/0x58 [ 41.952049][ T5922] legacy_get_tree+0xd4/0x16c [ 41.953295][ T5922] vfs_get_tree+0x90/0x274 [ 41.954426][ T5922] do_new_mount+0x25c/0x8c8 [ 41.955627][ T5922] path_mount+0x590/0xe58 [ 41.956757][ T5922] __arm64_sys_mount+0x45c/0x594 [ 41.958054][ T5922] invoke_syscall+0x98/0x2c0 [ 41.959225][ T5922] el0_svc_common+0x138/0x258 [ 41.960398][ T5922] do_el0_svc+0x64/0x198 [ 41.961521][ T5922] el0_svc+0x58/0x168 [ 41.962581][ T5922] el0t_64_sync_handler+0x84/0xf0 [ 41.963930][ T5922] el0t_64_sync+0x190/0x194 [ 41.965286][ T5922] ================================================================================ [ 41.967607][ T5922] EXT2-fs (loop0): error: fragsize 4096 != blocksize 1024(not supported yet)