------------[ cut here ]------------
WARNING: CPU: 1 PID: 4886 at fs/udf/truncate.c:208 udf_truncate_extents+0x9f0/0xb48 fs/udf/truncate.c:-1
Modules linked in:
CPU: 1 PID: 4886 Comm: syz.0.16 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026
pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : udf_truncate_extents+0x9f0/0xb48 fs/udf/truncate.c:-1
lr : udf_truncate_extents+0x9ec/0xb48 fs/udf/truncate.c:208
sp : ffff80001fcc76e0
x29: ffff80001fcc7860 x28: 00000000001263ff x27: 00000000000000ff
x26: ffff0000e1ed8e78 x25: ffff0000e1ed8d10 x24: ffff700003f98eec
x23: 0000000000000010 x22: 00000000000000ff x21: ffff80001fcc7780
x20: ffff80001fcc7760 x19: ffff0000e1ed8e28 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000097582b0 x15: 0000000000000001
x14: 0000000000ff0100 x13: ffffffffffffffff x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff800009771bbc
x8 : ffff0000c1b73680 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000001
x2 : ffff80001fcc7788 x1 : 00000000001263ff x0 : 0000000000000000
Call trace:
 udf_truncate_extents+0x9f0/0xb48 fs/udf/truncate.c:-1
 udf_setsize+0xae0/0xd9c fs/udf/inode.c:1183
 udf_setattr+0x280/0x414 fs/udf/file.c:277
 notify_change+0xa08/0xcd8 fs/attr.c:505
 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+0x98/0x2b0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1d0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 176
hardirqs last  enabled at (175): [<ffff8000089cbdac>] lookup_bh_lru fs/buffer.c:1294 [inline]
hardirqs last  enabled at (175): [<ffff8000089cbdac>] __find_get_block+0x1c4/0xcb0 fs/buffer.c:1306
hardirqs last disabled at (176): [<ffff8000112561f8>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (84): [<ffff800008031f94>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31
softirqs last disabled at (82): [<ffff800008031f60>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18
---[ end trace 1ea8483a57b3386b ]---