Warning: Permanently added '10.128.0.222' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   39.464377][ T4315] loop0: detected capacity change from 0 to 32768
[   39.714331][ T4315] ================================================================================
[   39.716907][ T4315] UBSAN: shift-out-of-bounds in fs/jfs/jfs_extent.c:314:16
[   39.718664][ T4315] shift exponent -1 is negative
[   39.719815][ T4315] CPU: 0 PID: 4315 Comm: syz-executor369 Not tainted 6.1.21-syzkaller #0
[   39.721869][ T4315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
[   39.724377][ T4315] Call trace:
[   39.725106][ T4315]  dump_backtrace+0x1c8/0x1f4
[   39.726321][ T4315]  show_stack+0x2c/0x3c
[   39.727324][ T4315]  dump_stack_lvl+0x108/0x170
[   39.728505][ T4315]  dump_stack+0x1c/0x5c
[   39.729533][ T4315]  __ubsan_handle_shift_out_of_bounds+0x2f4/0x36c
[   39.731127][ T4315]  extAlloc+0xbb8/0xdd0
[   39.732160][ T4315]  jfs_get_block+0x340/0xb98
[   39.733267][ T4315]  __block_write_begin_int+0x340/0x13b4
[   39.734627][ T4315]  block_write_begin+0x98/0x11c
[   39.735805][ T4315]  jfs_write_begin+0x44/0x88
[   39.736960][ T4315]  generic_perform_write+0x278/0x55c
[   39.738268][ T4315]  __generic_file_write_iter+0x168/0x388
[   39.739714][ T4315]  generic_file_write_iter+0xb8/0x2b4
[   39.741066][ T4315]  vfs_write+0x610/0x914
[   39.742104][ T4315]  ksys_write+0x15c/0x26c
[   39.743207][ T4315]  __arm64_sys_write+0x7c/0x90
[   39.744357][ T4315]  invoke_syscall+0x98/0x2c0
[   39.745523][ T4315]  el0_svc_common+0x138/0x258
[   39.746688][ T4315]  do_el0_svc+0x64/0x218
[   39.747712][ T4315]  el0_svc+0x58/0x168
[   39.748705][ T4315]  el0t_64_sync_handler+0x84/0xf0
[   39.750003][ T4315]  el0t_64_sync+0x18c/0x190
[   39.751227][ T4315] ================================================================================
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