------------[ cut here ]------------
WARNING: CPU: 1 PID: 4820 at fs/nilfs2/dat.c:158 nilfs_dat_prepare_end+0x2ac/0x2f4 fs/nilfs2/dat.c:158
Modules linked in:
CPU: 1 PID: 4820 Comm: syz-executor.2 Not tainted 5.15.148-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
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 : ffff80001d527430
x29: ffff80001d527440 x28: 0000000000000000 x27: dfff800000000000
x26: ffff000113a63358 x25: dfff800000000000 x24: 0000000000000000
x23: 1fffe0001ab8fc43 x22: 00000000fffffffe x21: ffff000113a60158
x20: ffff0000d5c7e218 x19: ffff0000d5c7e230 x18: 0000000000000000
x17: 0000000000000002 x16: ffff800009ca8998 x15: 00000000ffffffef
x14: ffff000118481b40 x13: 0000000000ff0100 x12: 0000000000040000
x11: 00000000000369d2 x10: ffff80001e52c000 x9 : 00000000000369d3
x8 : ffff800009cc2988 x7 : 0000000000000000 x6 : ffff80000805c7bc
x5 : ffff0000d64c3530 x4 : 0000000000000000 x3 : ffff800008a6cecc
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:184 [inline]
 nilfs_bmap_do_truncate fs/nilfs2/bmap.c:272 [inline]
 nilfs_bmap_truncate+0x2a0/0x4c0 fs/nilfs2/bmap.c:305
 nilfs_truncate_bmap+0x198/0x314 fs/nilfs2/inode.c:850
 nilfs_truncate+0x1f8/0x404 fs/nilfs2/inode.c:880
 nilfs_setattr+0x1d4/0x278 fs/nilfs2/inode.c:994
 notify_change+0xa34/0xcf8 fs/attr.c:505
 do_truncate+0x1c0/0x28c fs/open.c:65
 vfs_truncate+0x2e0/0x388 fs/open.c:111
 do_sys_truncate+0xec/0x1b4 fs/open.c:134
 __do_sys_truncate fs/open.c:146 [inline]
 __se_sys_truncate fs/open.c:144 [inline]
 __arm64_sys_truncate+0x5c/0x70 fs/open.c:144
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 8260
hardirqs last  enabled at (8259): [<ffff8000088cc9e0>] kasan_quarantine_put+0xdc/0x204 mm/kasan/quarantine.c:231
hardirqs last disabled at (8260): [<ffff80001197e8c8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (7864): [<ffff8000080300b4>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (7862): [<ffff800008030080>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18
---[ end trace 2199b851dd55f051 ]---
NILFS (loop2): error -2 truncating bmap (ino=16)