Warning: Permanently added '10.128.1.137' (ED25519) to the list of known hosts.
executing program
[   52.451571][ T4020] loop0: detected capacity change from 0 to 32768
[   52.589673][ T4020] ================================================================================
[   52.591741][ T4020] UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:1697:18
[   52.593202][ T4020] shift exponent -1 is negative
[   52.594232][ T4020] CPU: 0 PID: 4020 Comm: syz-executor839 Not tainted 5.15.175-syzkaller #0
[   52.595947][ T4020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[   52.597912][ T4020] Call trace:
[   52.598586][ T4020]  dump_backtrace+0x0/0x530
[   52.599491][ T4020]  show_stack+0x2c/0x3c
[   52.600357][ T4020]  dump_stack_lvl+0x108/0x170
[   52.601249][ T4020]  dump_stack+0x1c/0x58
[   52.602089][ T4020]  __ubsan_handle_shift_out_of_bounds+0x2f8/0x378
[   52.603347][ T4020]  dbDiscardAG+0x3a4/0x728
[   52.604336][ T4020]  jfs_ioc_trim+0x3f4/0x5f0
[   52.605323][ T4020]  jfs_ioctl+0x350/0x574
[   52.606261][ T4020]  __arm64_sys_ioctl+0x14c/0x1c8
[   52.607287][ T4020]  invoke_syscall+0x98/0x2b8
[   52.608325][ T4020]  el0_svc_common+0x138/0x258
[   52.609270][ T4020]  do_el0_svc+0x58/0x14c
[   52.610141][ T4020]  el0_svc+0x7c/0x1f0
[   52.611041][ T4020]  el0t_64_sync_handler+0x84/0xe4
[   52.612013][ T4020]  el0t_64_sync+0x1a0/0x1a4
[   52.613185][ T4020] ================================================================================