Warning: Permanently added '10.128.0.181' (ECDSA) to the list of known hosts.
executing program
[   37.639029][ T4216] loop0: detected capacity change from 0 to 32768
[   37.894653][ T4216] ================================================================================
[   37.897043][ T4216] UBSAN: shift-out-of-bounds in fs/jfs/jfs_extent.c:314:16
[   37.898688][ T4216] shift exponent -1 is negative
[   37.899838][ T4216] CPU: 1 PID: 4216 Comm: syz-executor159 Not tainted 6.1.29-syzkaller #0
[   37.901780][ T4216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
[   37.904095][ T4216] Call trace:
[   37.904802][ T4216]  dump_backtrace+0x1c8/0x1f4
[   37.905858][ T4216]  show_stack+0x2c/0x3c
[   37.906887][ T4216]  dump_stack_lvl+0x108/0x170
[   37.907988][ T4216]  dump_stack+0x1c/0x5c
[   37.909023][ T4216]  __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c
[   37.910561][ T4216]  extAlloc+0xbb8/0xdd0
[   37.911604][ T4216]  jfs_get_block+0x340/0xb98
[   37.912705][ T4216]  __block_write_begin_int+0x340/0x13b4
[   37.913982][ T4216]  block_write_begin+0x98/0x11c
[   37.915083][ T4216]  jfs_write_begin+0x44/0x88
[   37.916199][ T4216]  generic_perform_write+0x278/0x55c
[   37.917427][ T4216]  __generic_file_write_iter+0x168/0x388
[   37.918775][ T4216]  generic_file_write_iter+0xb8/0x2b4
[   37.920000][ T4216]  vfs_write+0x610/0x914
[   37.921041][ T4216]  ksys_write+0x15c/0x26c
[   37.922042][ T4216]  __arm64_sys_write+0x7c/0x90
[   37.923099][ T4216]  invoke_syscall+0x98/0x2c0
[   37.924131][ T4216]  el0_svc_common+0x138/0x258
[   37.925187][ T4216]  do_el0_svc+0x64/0x218
[   37.926172][ T4216]  el0_svc+0x58/0x168
[   37.927178][ T4216]  el0t_64_sync_handler+0x84/0xf0
[   37.928452][ T4216]  el0t_64_sync+0x18c/0x190
[   37.929722][ T4216] ================================================================================