loop0: detected capacity change from 0 to 2048 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4216 at fs/nilfs2/dat.c:158 nilfs_dat_prepare_end+0x2ac/0x2f4 fs/nilfs2/dat.c:158 Modules linked in: CPU: 1 PID: 4216 Comm: syz-executor946 Not tainted 6.1.27-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : nilfs_dat_prepare_end+0x2ac/0x2f4 fs/nilfs2/dat.c:158 lr : nilfs_dat_prepare_end+0x2ac/0x2f4 fs/nilfs2/dat.c:158 sp : ffff80001d9c6f70 x29: ffff80001d9c6f80 x28: 0000000000000000 x27: dfff800000000000 x26: ffff0000e1c38680 x25: dfff800000000000 x24: 0000000000000000 x23: 1fffe0001bbbd973 x22: 00000000fffffffe x21: ffff0000e1c70158 x20: ffff0000dddecb98 x19: ffff0000dddecbb0 x18: ffff80001d9c6760 x17: ffff80001558d000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 00000000ffffffef x12: ffff0000c63d0000 x11: ff80800009d9b720 x10: 0000000000000000 x9 : ffff800009d9b720 x8 : ffff0000c63d0000 x7 : ffff800008061ea0 x6 : ffff8000080620b0 x5 : ffff0000d10af0c0 x4 : ffff80001d9c6788 x3 : ffff800008b28cf8 x2 : 0000000000000001 x1 : 00000000fffffffe x0 : 00000000fffffffe Call trace: nilfs_dat_prepare_end+0x2ac/0x2f4 fs/nilfs2/dat.c:158 nilfs_bmap_prepare_end_ptr fs/nilfs2/bmap.h:211 [inline] nilfs_btree_prepare_delete fs/nilfs2/btree.c:1451 [inline] nilfs_btree_delete+0x6f0/0x11bc fs/nilfs2/btree.c:1599 nilfs_bmap_do_delete fs/nilfs2/bmap.c:176 [inline] nilfs_bmap_do_truncate fs/nilfs2/bmap.c:264 [inline] nilfs_bmap_truncate+0x2a0/0x4c0 fs/nilfs2/bmap.c:297 nilfs_truncate_bmap+0x198/0x314 fs/nilfs2/inode.c:846 nilfs_truncate+0x1f8/0x404 fs/nilfs2/inode.c:876 nilfs_setattr+0x1d4/0x278 fs/nilfs2/inode.c:972 notify_change+0xc24/0xec0 fs/attr.c:482 do_truncate+0x1c0/0x28c fs/open.c:65 handle_truncate fs/namei.c:3216 [inline] do_open fs/namei.c:3561 [inline] path_openat+0x1fa0/0x2548 fs/namei.c:3714 do_filp_open+0x1bc/0x3cc fs/namei.c:3741 do_sys_openat2+0x128/0x3d8 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 irq event stamp: 22650 hardirqs last enabled at (22649): [] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:242 hardirqs last disabled at (22650): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (22198): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (22196): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- NILFS (loop0): error -2 truncating bmap (ino=16)