Warning: Permanently added '10.128.1.187' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 37.497903][ T4216] loop0: detected capacity change from 0 to 2048 [ 37.507884][ T4217] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 37.513849][ T4216] ------------[ cut here ]------------ [ 37.515149][ T4216] WARNING: CPU: 1 PID: 4216 at fs/nilfs2/dat.c:158 nilfs_dat_prepare_end+0x2ac/0x2f4 [ 37.517157][ T4216] Modules linked in: [ 37.518008][ T4216] CPU: 1 PID: 4216 Comm: syz-executor946 Not tainted 6.1.27-syzkaller #0 [ 37.519878][ T4216] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 37.522131][ T4216] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 37.523853][ T4216] pc : nilfs_dat_prepare_end+0x2ac/0x2f4 [ 37.525073][ T4216] lr : nilfs_dat_prepare_end+0x2ac/0x2f4 [ 37.526313][ T4216] sp : ffff80001d9c6f70 [ 37.527262][ T4216] x29: ffff80001d9c6f80 x28: 0000000000000000 x27: dfff800000000000 [ 37.529019][ T4216] x26: ffff0000e1c38680 x25: dfff800000000000 x24: 0000000000000000 [ 37.530823][ T4216] x23: 1fffe0001bbbd973 x22: 00000000fffffffe x21: ffff0000e1c70158 [ 37.532656][ T4216] x20: ffff0000dddecb98 x19: ffff0000dddecbb0 x18: ffff80001d9c6760 [ 37.534522][ T4216] x17: ffff80001558d000 x16: 0000000000000000 x15: 0000000000000000 [ 37.536205][ T4216] x14: 0000000000000000 x13: 00000000ffffffef x12: ffff0000c63d0000 [ 37.537881][ T4216] x11: ff80800009d9b720 x10: 0000000000000000 x9 : ffff800009d9b720 [ 37.539669][ T4216] x8 : ffff0000c63d0000 x7 : ffff800008061ea0 x6 : ffff8000080620b0 [ 37.541416][ T4216] x5 : ffff0000d10af0c0 x4 : ffff80001d9c6788 x3 : ffff800008b28cf8 [ 37.543261][ T4216] x2 : 0000000000000001 x1 : 00000000fffffffe x0 : 00000000fffffffe [ 37.544930][ T4216] Call trace: [ 37.545676][ T4216] nilfs_dat_prepare_end+0x2ac/0x2f4 [ 37.546920][ T4216] nilfs_btree_delete+0x6f0/0x11bc [ 37.548140][ T4216] nilfs_bmap_truncate+0x2a0/0x4c0 [ 37.549267][ T4216] nilfs_truncate_bmap+0x198/0x314 [ 37.550440][ T4216] nilfs_truncate+0x1f8/0x404 [ 37.551441][ T4216] nilfs_setattr+0x1d4/0x278 [ 37.552386][ T4216] notify_change+0xc24/0xec0 [ 37.553440][ T4216] do_truncate+0x1c0/0x28c [ 37.554387][ T4216] path_openat+0x1fa0/0x2548 [ 37.555364][ T4216] do_filp_open+0x1bc/0x3cc [ 37.556392][ T4216] do_sys_openat2+0x128/0x3d8 [ 37.557491][ T4216] __arm64_sys_openat+0x1f0/0x240 [ 37.558598][ T4216] invoke_syscall+0x98/0x2c0 [ 37.559591][ T4216] el0_svc_common+0x138/0x258 [ 37.560561][ T4216] do_el0_svc+0x64/0x218 [ 37.561512][ T4216] el0_svc+0x58/0x168 [ 37.562316][ T4216] el0t_64_sync_handler+0x84/0xf0 [ 37.563422][ T4216] el0t_64_sync+0x18c/0x190 [ 37.564405][ T4216] irq event stamp: 22650 [ 37.565331][ T4216] hardirqs last enabled at (22649): [] kasan_quarantine_put+0xdc/0x204 [ 37.567612][ T4216] hardirqs last disabled at (22650): [] el1_dbg+0x24/0x80 [ 37.569473][ T4216] softirqs last enabled at (22198): [] local_bh_enable+0x10/0x34 [ 37.571599][ T4216] softirqs last disabled at (22196): [] local_bh_disable+0x10/0x34 [ 37.573718][ T4216] ---[ end trace 0000000000000000 ]--- [ 37.575142][ T4216] NILFS (loop0): error -2 truncating bmap (ino=16)