option from the mount to silence this warning. ======================================================= UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6096 at fs/udf/inode.c:667 udf_extend_file fs/udf/inode.c:666 [inline] WARNING: CPU: 0 PID: 6096 at fs/udf/inode.c:667 udf_setsize+0xc84/0x1008 fs/udf/inode.c:1269 Modules linked in: CPU: 0 PID: 6096 Comm: syz-executor381 Not tainted 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : udf_extend_file fs/udf/inode.c:666 [inline] pc : udf_setsize+0xc84/0x1008 fs/udf/inode.c:1269 lr : udf_extend_file fs/udf/inode.c:666 [inline] lr : udf_setsize+0xc84/0x1008 fs/udf/inode.c:1269 sp : ffff800096d178c0 x29: ffff800096d17a80 x28: 0000000000000009 x27: 0000000000000002 x26: 0000000000000c00 x25: ffff800096d17a10 x24: 0000000000000400 x23: ffff0000dd81888a x22: 1fffe0001bb03111 x21: ffff700012da2f2c x20: ffff800096d17980 x19: ffff0000dd8187c0 x18: ffff800096d17500 x17: 0000000000000000 x16: ffff80008026e1cc x15: 0000000000000001 x14: 1fffe0001bb030f0 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : ffff0000d97d1bc0 x7 : 0000003d000000d0 x6 : 0000000000000000 x5 : ffff0000dd818778 x4 : ffff800096d17998 x3 : ffff80008032f778 x2 : 0000000000000001 x1 : 0000000000000c00 x0 : 0000000000000400 Call trace: udf_extend_file fs/udf/inode.c:666 [inline] udf_setsize+0xc84/0x1008 fs/udf/inode.c:1269 udf_setattr+0x280/0x414 fs/udf/file.c:235 notify_change+0x9d4/0xc8c fs/attr.c:499 do_truncate+0x1c0/0x28c fs/open.c:66 do_sys_ftruncate+0x284/0x318 fs/open.c:194 __do_sys_ftruncate fs/open.c:205 [inline] __se_sys_ftruncate fs/open.c:203 [inline] __arm64_sys_ftruncate+0x60/0x74 fs/open.c:203 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 irq event stamp: 5512 hardirqs last enabled at (5511): [] seqcount_lockdep_reader_access+0x80/0x104 include/linux/seqlock.h:104 hardirqs last disabled at (5512): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:436 softirqs last enabled at (5486): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (5484): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- UDF-fs: warning (device loop0): udf_truncate_tail_extent: Too long extent after EOF in inode 1357: i_size: 2042 lbcount: 4096 extent 65+3072