Warning: Permanently added '10.128.0.51' (ECDSA) to the list of known hosts.
executing program
[   66.479470][ T4217] loop0: detected capacity change from 0 to 32768
[   66.740047][ T4217] ================================================================================
[   66.742190][ T4217] UBSAN: shift-out-of-bounds in fs/jfs/jfs_extent.c:314:16
[   66.743720][ T4217] shift exponent -1 is negative
[   66.744823][ T4217] CPU: 1 PID: 4217 Comm: syz-executor169 Not tainted 6.1.29-syzkaller #0
[   66.746743][ T4217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023
[   66.748901][ T4217] Call trace:
[   66.749613][ T4217]  dump_backtrace+0x1c8/0x1f4
[   66.750608][ T4217]  show_stack+0x2c/0x3c
[   66.751467][ T4217]  dump_stack_lvl+0x108/0x170
[   66.752497][ T4217]  dump_stack+0x1c/0x5c
[   66.753455][ T4217]  __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c
[   66.754864][ T4217]  extAlloc+0xbb8/0xdd0
[   66.755772][ T4217]  jfs_get_block+0x340/0xb98
[   66.756752][ T4217]  __block_write_begin_int+0x340/0x13b4
[   66.757846][ T4217]  block_write_begin+0x98/0x11c
[   66.758982][ T4217]  jfs_write_begin+0x44/0x88
[   66.760021][ T4217]  generic_perform_write+0x278/0x55c
[   66.761140][ T4217]  __generic_file_write_iter+0x168/0x388
[   66.762307][ T4217]  generic_file_write_iter+0xb8/0x2b4
[   66.763429][ T4217]  vfs_write+0x610/0x914
[   66.764271][ T4217]  ksys_write+0x15c/0x26c
[   66.765175][ T4217]  __arm64_sys_write+0x7c/0x90
[   66.766083][ T4217]  invoke_syscall+0x98/0x2c0
[   66.767034][ T4217]  el0_svc_common+0x138/0x258
[   66.767965][ T4217]  do_el0_svc+0x64/0x218
[   66.768890][ T4217]  el0_svc+0x58/0x168
[   66.769672][ T4217]  el0t_64_sync_handler+0x84/0xf0
[   66.770782][ T4217]  el0t_64_sync+0x18c/0x190
[   66.771857][ T4217] ================================================================================