------------[ cut here ]------------
WARNING: CPU: 1 PID: 5159 at fs/udf/truncate.c:209 udf_truncate_extents+0xa58/0xbb0 fs/udf/truncate.c:-1
Modules linked in:
CPU: 1 PID: 5159 Comm: syz.4.181 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : udf_truncate_extents+0xa58/0xbb0 fs/udf/truncate.c:-1
lr : udf_truncate_extents+0xa54/0xbb0 fs/udf/truncate.c:209
sp : ffff800021937560
x29: ffff8000219376e0 x28: 00000000000000ff x27: 0000000000000000
x26: dfff800000000000 x25: ffff0000e21e21b0 x24: ffff700004326ebc
x23: ffff0000cf3f4000 x22: ffff8000219375e0 x21: ffff800021937600
x20: ffff0000e21e2048 x19: ffff0000e21e2160 x18: 0000000000000000
x17: ffff80001835b000 x16: ffff8000082d7db8 x15: 0000000000000002
x14: 0000000000000001 x13: 0000000000ff0100 x12: 0000000000080000
x11: 00000000000046d6 x10: ffff80002b468000 x9 : ffff800009854c3c
x8 : 00000000000046d7 x7 : ffff80000983d45c x6 : 0000000000000000
x5 : 0000000000000001 x4 : ffff800021937454 x3 : 0000000000000001
x2 : ffff800021937608 x1 : 0000000007ed5062 x0 : 0000000000000000
Call trace:
 udf_truncate_extents+0xa58/0xbb0 fs/udf/truncate.c:-1
 udf_do_extend_file+0xb04/0xdd4 fs/udf/inode.c:479
 udf_extend_file fs/udf/inode.c:564 [inline]
 udf_setsize+0x8d0/0xda8 fs/udf/inode.c:1147
 udf_setattr+0x280/0x414 fs/udf/file.c:279
 notify_change+0xb0c/0xdcc fs/attr.c:499
 do_truncate+0x188/0x20c fs/open.c:65
 vfs_truncate+0x23c/0x2b0 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+0x98/0x2b4 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x128 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:585
irq event stamp: 51056
hardirqs last  enabled at (51055): [<ffff800008a8e4f4>] lookup_bh_lru fs/buffer.c:1291 [inline]
hardirqs last  enabled at (51055): [<ffff800008a8e4f4>] __find_get_block+0x1c4/0xddc fs/buffer.c:1303
hardirqs last disabled at (51056): [<ffff800011a389f4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (51008): [<ffff800008030954>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (51006): [<ffff800008030920>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---