Warning: Permanently added '10.128.10.14' (ECDSA) to the list of known hosts.
executing program
[   39.465901][ T3961] loop0: detected capacity change from 0 to 32768
[   39.776777][ T3961] ================================================================================
[   39.779006][ T3961] UBSAN: shift-out-of-bounds in fs/jfs/jfs_extent.c:511:16
[   39.780836][ T3961] shift exponent -1 is negative
[   39.781999][ T3961] CPU: 1 PID: 3961 Comm: syz-executor196 Not tainted 5.15.112-syzkaller #0
[   39.783997][ T3961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
[   39.786391][ T3961] Call trace:
[   39.787064][ T3961]  dump_backtrace+0x0/0x530
[   39.788116][ T3961]  show_stack+0x2c/0x3c
[   39.789032][ T3961]  dump_stack_lvl+0x108/0x170
[   39.790223][ T3961]  dump_stack+0x1c/0x58
[   39.791275][ T3961]  __ubsan_handle_shift_out_of_bounds+0x2f8/0x378
[   39.792966][ T3961]  extAlloc+0xbd4/0xe38
[   39.794005][ T3961]  jfs_get_block+0x34c/0xbfc
[   39.795083][ T3961]  nobh_write_begin+0x2d8/0xa28
[   39.796280][ T3961]  jfs_write_begin+0x58/0xa0
[   39.797395][ T3961]  generic_perform_write+0x24c/0x520
[   39.798738][ T3961]  __generic_file_write_iter+0x230/0x454
[   39.800116][ T3961]  generic_file_write_iter+0xb4/0x1b8
[   39.801423][ T3961]  vfs_write+0x87c/0xb3c
[   39.802447][ T3961]  ksys_write+0x15c/0x26c
[   39.803474][ T3961]  __arm64_sys_write+0x7c/0x90
[   39.804624][ T3961]  invoke_syscall+0x98/0x2b8
[   39.805717][ T3961]  el0_svc_common+0x138/0x258
[   39.806907][ T3961]  do_el0_svc+0x58/0x14c
[   39.807981][ T3961]  el0_svc+0x7c/0x1f0
[   39.809038][ T3961]  el0t_64_sync_handler+0x84/0xe4
[   39.810277][ T3961]  el0t_64_sync+0x1a0/0x1a4
[   39.811526][ T3961] ================================================================================