------------[ cut here ]------------ WARNING: CPU: 0 PID: 14831 at fs/udf/truncate.c:224 udf_truncate_extents+0xd65/0xed0 fs/udf/truncate.c:224 Modules linked in: CPU: 0 PID: 14831 Comm: syz.9.1571 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:udf_truncate_extents+0xd65/0xed0 fs/udf/truncate.c:224 Code: 65 48 8b 04 25 28 00 00 00 48 3b 84 24 80 01 00 00 75 73 44 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 fb 8c 88 fe <0f> 0b e9 6d ff ff ff 44 89 f9 80 e1 07 38 c1 0f 8c 0c f4 ff ff 4c RSP: 0018:ffffc90004b579a0 EFLAGS: 00010283 RAX: ffffffff82fefe55 RBX: 000000000000000a RCX: 0000000000080000 RDX: ffffc900111dc000 RSI: 000000000000cbb9 RDI: 000000000000cbba RBP: ffffc90004b57b80 R08: ffff888060243c00 R09: 0000000000000002 R10: 0000000000000001 R11: 0000000000000002 R12: 000000000000000a R13: 1ffff1100bc6e26f R14: 0000000000000000 R15: 0000000000000000 FS: 00007f853a13f6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb8c78e0000 CR3: 000000006bfb2000 CR4: 00000000003506f0 Call Trace: udf_write_failed+0x163/0x1b0 fs/udf/inode.c:178 udf_direct_IO+0x1c3/0x200 fs/udf/inode.c:311 generic_file_direct_write+0x1c9/0x3e0 mm/filemap.c:3961 __generic_file_write_iter+0x11b/0x230 mm/filemap.c:4117 udf_file_write_iter+0x2f0/0x6a0 fs/udf/file.c:111 call_write_iter include/linux/fs.h:2018 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x474/0x9a0 fs/read_write.c:584 ksys_pwrite64 fs/read_write.c:699 [inline] __do_sys_pwrite64 fs/read_write.c:709 [inline] __se_sys_pwrite64 fs/read_write.c:706 [inline] __x64_sys_pwrite64+0x198/0x220 fs/read_write.c:706 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f853919e159 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f853a13f028 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 00007f8539425fa0 RCX: 00007f853919e159 RDX: 0000000000000001 RSI: 00002000000001c0 RDI: 0000000000000004 RBP: 00007f853923506b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000008e1c R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8539426038 R14: 00007f8539425fa0 R15: 00007fff010a4b18