R10: 0000000404043000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007f19f35b6038 R14: 00007f19f35b5fa0 R15: 00007fff720ec308 ------------[ cut here ]------------ WARNING: fs/udf/truncate.c:224 at udf_truncate_extents+0xd4c/0xec0 fs/udf/truncate.c:224, CPU#0: syz.4.638/8809 Modules linked in: CPU: 0 UID: 0 PID: 8809 Comm: syz.4.638 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:udf_truncate_extents+0xd4c/0xec0 fs/udf/truncate.c:224 Code: f8 87 0f 48 3b 84 24 80 01 00 00 75 77 44 89 e0 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 0b 6e 47 08 cc e8 35 77 86 fe 90 <0f> 0b 90 eb 88 44 89 e9 80 e1 07 38 c1 0f 8c e4 f3 ff ff 4c 89 ef RSP: 0018:ffffc9000bc3f8a0 EFLAGS: 00010293 RAX: ffffffff833a179b RBX: 1ffff1100ac00bfc RCX: ffff888055b60000 RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000000 RBP: ffffc9000bc3fa78 R08: ffff888055b60000 R09: 0000000000000002 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 000000000000000a R15: 000000000000000a FS: 00007f19f42d66c0(0000) GS:ffff8881259ff000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000004b000 CR3: 0000000032a4c000 CR4: 00000000003526f0 Call Trace: udf_write_failed+0x185/0x1c0 fs/udf/inode.c:178 udf_write_begin+0x212/0x270 fs/udf/inode.c:265 generic_perform_write+0x2c2/0x900 mm/filemap.c:4188 udf_file_write_iter+0x2d5/0x6c0 fs/udf/file.c:111 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c9/0xb30 fs/read_write.c:686 ksys_pwrite64 fs/read_write.c:793 [inline] __do_sys_pwrite64 fs/read_write.c:801 [inline] __se_sys_pwrite64 fs/read_write.c:798 [inline] __x64_sys_pwrite64+0x193/0x220 fs/read_write.c:798 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f19f338ebe9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f19f42d6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 00007f19f35b5fa0 RCX: 00007f19f338ebe9 RDX: 00000000200000c1 RSI: 00002000000000c0 RDI: 0000000000000007 RBP: 00007f19f42d6090 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000404043000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007f19f35b6038 R14: 00007f19f35b5fa0 R15: 00007fff720ec308