Warning: Permanently added '10.128.1.35' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 42.375819][ T3960] loop0: detected capacity change from 0 to 2048 [ 42.387094][ T3961] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 42.394107][ T3960] ------------[ cut here ]------------ [ 42.395420][ T3960] WARNING: CPU: 0 PID: 3960 at fs/nilfs2/dat.c:158 nilfs_dat_prepare_end+0x2ac/0x2f4 [ 42.397468][ T3960] Modules linked in: [ 42.398425][ T3960] CPU: 0 PID: 3960 Comm: syz-executor178 Not tainted 5.15.110-syzkaller #0 [ 42.400355][ T3960] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 [ 42.402615][ T3960] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 42.404377][ T3960] pc : nilfs_dat_prepare_end+0x2ac/0x2f4 [ 42.405663][ T3960] lr : nilfs_dat_prepare_end+0x2ac/0x2f4 [ 42.407049][ T3960] sp : ffff800018e86f50 [ 42.408012][ T3960] x29: ffff800018e86f60 x28: 0000000000000000 x27: dfff800000000000 [ 42.409832][ T3960] x26: ffff0000dc9d8680 x25: dfff800000000000 x24: 0000000000000000 [ 42.411542][ T3960] x23: 1fffe0001821a973 x22: 00000000fffffffe x21: ffff0000dfc10158 [ 42.413306][ T3960] x20: ffff0000c10d4b98 x19: ffff0000c10d4bb0 x18: 0000000000000000 [ 42.415052][ T3960] x17: ff80800009c9fa90 x16: 0000000000000000 x15: ffff800009c9fa90 [ 42.416792][ T3960] x14: 00000000ffffffef x13: ffffffffffffffff x12: 0000000000000000 [ 42.418631][ T3960] x11: ff80800009cb9a58 x10: 0000000000000000 x9 : ffff800009cb9a58 [ 42.420301][ T3960] x8 : ffff0000c8c48000 x7 : 0000000000000000 x6 : ffff80000805cb20 [ 42.422071][ T3960] x5 : ffff0000c7b42c78 x4 : 0000000000000000 x3 : ffff800008a67fcc [ 42.423858][ T3960] x2 : 0000000000000001 x1 : 00000000fffffffe x0 : 00000000fffffffe [ 42.425591][ T3960] Call trace: [ 42.426377][ T3960] nilfs_dat_prepare_end+0x2ac/0x2f4 [ 42.427585][ T3960] nilfs_btree_delete+0x6f0/0x11bc [ 42.428726][ T3960] nilfs_bmap_truncate+0x2a0/0x4c0 [ 42.429930][ T3960] nilfs_truncate_bmap+0x198/0x314 [ 42.431082][ T3960] nilfs_truncate+0x1f8/0x404 [ 42.432049][ T3960] nilfs_setattr+0x1d4/0x278 [ 42.433074][ T3960] notify_change+0xac4/0xd60 [ 42.434110][ T3960] do_truncate+0x1c0/0x28c [ 42.435041][ T3960] path_openat+0x20e8/0x26f0 [ 42.436113][ T3960] do_filp_open+0x1a8/0x3b4 [ 42.437047][ T3960] do_sys_openat2+0x128/0x3d8 [ 42.438041][ T3960] __arm64_sys_openat+0x1f0/0x240 [ 42.439084][ T3960] invoke_syscall+0x98/0x2b8 [ 42.440051][ T3960] el0_svc_common+0x138/0x258 [ 42.441067][ T3960] do_el0_svc+0x58/0x14c [ 42.441973][ T3960] el0_svc+0x7c/0x1f0 [ 42.442922][ T3960] el0t_64_sync_handler+0x84/0xe4 [ 42.443955][ T3960] el0t_64_sync+0x1a0/0x1a4 [ 42.444983][ T3960] irq event stamp: 20296 [ 42.445915][ T3960] hardirqs last enabled at (20295): [] kasan_quarantine_put+0xdc/0x204 [ 42.448019][ T3960] hardirqs last disabled at (20296): [] el1_dbg+0x24/0x80 [ 42.449947][ T3960] softirqs last enabled at (19880): [] local_bh_enable+0x10/0x34 [ 42.451968][ T3960] softirqs last disabled at (19878): [] local_bh_disable+0x10/0x34 [ 42.453910][ T3960] ---[ end trace f0dfde79dd6abecb ]--- [ 42.455287][ T3960] NILFS (loop0): error -2 truncating bmap (ino=16)