Warning: Permanently added '10.128.1.19' (ECDSA) to the list of known hosts.
executing program
[   37.566858][ T3966] loop0: detected capacity change from 0 to 32768
[   37.869044][ T3966] ================================================================================
[   37.871103][ T3966] UBSAN: shift-out-of-bounds in fs/jfs/jfs_extent.c:511:16
[   37.872537][ T3966] shift exponent -1 is negative
[   37.873507][ T3966] CPU: 0 PID: 3966 Comm: syz-executor290 Not tainted 5.15.112-syzkaller #0
[   37.875313][ T3966] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
[   37.877402][ T3966] Call trace:
[   37.878169][ T3966]  dump_backtrace+0x0/0x530
[   37.879119][ T3966]  show_stack+0x2c/0x3c
[   37.879980][ T3966]  dump_stack_lvl+0x108/0x170
[   37.881012][ T3966]  dump_stack+0x1c/0x58
[   37.881940][ T3966]  __ubsan_handle_shift_out_of_bounds+0x2f8/0x378
[   37.883330][ T3966]  extAlloc+0xbd4/0xe38
[   37.884274][ T3966]  jfs_get_block+0x34c/0xbfc
[   37.885261][ T3966]  nobh_write_begin+0x2d8/0xa28
[   37.886231][ T3966]  jfs_write_begin+0x58/0xa0
[   37.887169][ T3966]  generic_perform_write+0x24c/0x520
[   37.888273][ T3966]  __generic_file_write_iter+0x230/0x454
[   37.889535][ T3966]  generic_file_write_iter+0xb4/0x1b8
[   37.890691][ T3966]  vfs_write+0x87c/0xb3c
[   37.891631][ T3966]  ksys_write+0x15c/0x26c
[   37.892518][ T3966]  __arm64_sys_write+0x7c/0x90
[   37.893512][ T3966]  invoke_syscall+0x98/0x2b8
[   37.894441][ T3966]  el0_svc_common+0x138/0x258
[   37.895493][ T3966]  do_el0_svc+0x58/0x14c
[   37.896388][ T3966]  el0_svc+0x7c/0x1f0
[   37.897244][ T3966]  el0t_64_sync_handler+0x84/0xe4
[   37.898298][ T3966]  el0t_64_sync+0x1a0/0x1a4
[   37.899361][ T3966] ================================================================================