------------[ cut here ]------------ byte_offset WARNING: fs/udf/truncate.c:224 at udf_truncate_extents+0xd79/0xef0 fs/udf/truncate.c:224, CPU#0: syz.3.173/6732 Modules linked in: CPU: 0 UID: 0 PID: 6732 Comm: syz.3.173 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026 RIP: 0010:udf_truncate_extents+0xd79/0xef0 fs/udf/truncate.c:224 Code: 3e 47 0f 48 3b 84 24 80 01 00 00 75 7a 44 89 f0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 c8 d6 6e fe 90 <0f> 0b 90 e9 67 ff ff ff 44 89 f9 80 e1 07 38 c1 0f 8c f3 f3 ff ff RSP: 0018:ffffc900089ff940 EFLAGS: 00010293 RAX: ffffffff835661c8 RBX: 000000000000000a RCX: ffff88801e33dd00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900089ffb18 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000001 R12: 000000000000000a R13: 1ffff1100c5501ea R14: 0000000000000000 R15: 0000000000000000 FS: 00007fe46fa856c0(0000) GS:ffff888125c46000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f190cdf5000 CR3: 000000003d5ea000 CR4: 00000000003526f0 Call Trace: udf_write_failed+0x16e/0x1b0 fs/udf/inode.c:180 udf_direct_IO+0x1c8/0x210 fs/udf/inode.c:313 generic_file_direct_write+0x1d1/0x3f0 mm/filemap.c:4292 __generic_file_write_iter+0x120/0x240 mm/filemap.c:4461 udf_file_write_iter+0x2a6/0x630 fs/udf/file.c:112 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61e/0xbb0 fs/read_write.c:687 ksys_pwrite64 fs/read_write.c:794 [inline] __do_sys_pwrite64 fs/read_write.c:802 [inline] __se_sys_pwrite64 fs/read_write.c:799 [inline] __x64_sys_pwrite64+0x199/0x230 fs/read_write.c:799 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe47184de99 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:00007fe46fa85028 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 00007fe471ad6090 RCX: 00007fe47184de99 RDX: 0000000000000001 RSI: 0000200000000140 RDI: 0000000000000004 RBP: 00007fe4718e3eaf R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000002cf2 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe471ad6128 R14: 00007fe471ad6090 R15: 00007fff290b8738