------------[ cut here ]------------ byte_offset WARNING: fs/udf/truncate.c:224 at udf_truncate_extents+0xd92/0xf00 fs/udf/truncate.c:224, CPU#1: syz.3.18/5902 Modules linked in: CPU: 1 UID: 0 PID: 5902 Comm: syz.3.18 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:udf_truncate_extents+0xd92/0xf00 fs/udf/truncate.c:224 Code: 73 1b 0f 48 3b 84 24 80 01 00 00 75 7a 44 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 df 49 75 fe 90 <0f> 0b 90 e9 64 ff ff ff 44 89 e9 80 e1 07 38 c1 0f 8c da f3 ff ff RSP: 0018:ffffc900055b77c0 EFLAGS: 00010283 RAX: ffffffff834f2cf1 RBX: 1ffff1100bf3b69f RCX: 0000000000080000 RDX: ffffc90010422000 RSI: 000000000000083a RDI: 000000000000083b RBP: ffffc900055b7988 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 000000000000000a R15: 000000000000000a FS: 00007fe0684456c0(0000) GS:ffff888126276000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000005d450000 CR4: 00000000003526f0 Call Trace: udf_write_failed+0x18b/0x1c0 fs/udf/inode.c:180 udf_direct_IO+0x1c8/0x210 fs/udf/inode.c:313 generic_file_direct_write+0x1dc/0x3e0 mm/filemap.c:4259 __generic_file_write_iter+0x120/0x240 mm/filemap.c:4428 udf_file_write_iter+0x2d5/0x6c0 fs/udf/file.c:112 do_iter_readv_writev+0x62b/0x8d0 fs/read_write.c:-1 vfs_writev+0x345/0x9a0 fs/read_write.c:1059 do_pwritev fs/read_write.c:1155 [inline] __do_sys_pwritev2 fs/read_write.c:1213 [inline] __se_sys_pwritev2+0x187/0x2b0 fs/read_write.c:1204 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe06a20ce59 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:00007fe068445028 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007fe06a486090 RCX: 00007fe06a20ce59 RDX: 0000000000000001 RSI: 0000200000000240 RDI: 0000000000000006 RBP: 00007fe06a2a2d6f R08: 0000000000000000 R09: 0000000000000003 R10: 0000000000001300 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe06a486128 R14: 00007fe06a486090 R15: 00007ffd952adaa8