------------[ cut here ]------------ WARNING: CPU: 0 PID: 20288 at fs/udf/inode.c:2050 __udf_add_aext+0x550/0x6f0 Modules linked in: CPU: 0 PID: 20288 Comm: syz-executor.2 Not tainted 6.3.0-rc4-syzkaller-00025-g3a93e40326c8 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:__udf_add_aext+0x550/0x6f0 fs/udf/inode.c:2049 Code: 4c 89 e7 e8 92 67 e4 fe 49 8b 3c 24 4c 89 fe e8 96 f4 03 ff 31 c0 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 c0 b0 8e fe <0f> 0b e9 ed fb ff ff e8 b4 b0 8e fe 0f 0b e9 5c fc ff ff e8 a8 b0 RSP: 0018:ffffc90016af71b8 EFLAGS: 00010293 RAX: ffffffff82fba230 RBX: 1ffff92002d5ee81 RCX: ffff8880271a57c0 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff82fb9e16 R09: ffffffff82fb9d46 R10: 0000000000000002 R11: ffff8880271a57c0 R12: ffffc90016af7400 R13: 0000000000000004 R14: dffffc0000000000 R15: ffffc90016af7408 FS: 0000555556efe400(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020025000 CR3: 000000001c711000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udf_add_aext fs/udf/inode.c:2107 [inline] udf_insert_aext fs/udf/inode.c:2269 [inline] udf_update_extents fs/udf/inode.c:1189 [inline] inode_getblk fs/udf/inode.c:904 [inline] udf_map_block+0x3bce/0x4ff0 fs/udf/inode.c:450 __udf_get_block+0x126/0x410 fs/udf/inode.c:464 __block_write_begin_int+0x548/0x1a50 fs/buffer.c:2034 udf_page_mkwrite+0x5ae/0x960 fs/udf/file.c:69 do_page_mkwrite+0x1a1/0x600 mm/memory.c:2925 wp_page_shared mm/memory.c:3274 [inline] do_wp_page+0x501/0x3620 mm/memory.c:3356 handle_pte_fault mm/memory.c:4927 [inline] __handle_mm_fault mm/memory.c:5051 [inline] handle_mm_fault+0x23a0/0x51c0 mm/memory.c:5197 do_user_addr_fault arch/x86/mm/fault.c:1407 [inline] handle_page_fault arch/x86/mm/fault.c:1498 [inline] exc_page_fault+0x5b1/0x7c0 arch/x86/mm/fault.c:1554 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0033:0x7f4ff2886d61 Code: c5 00 0f 87 cc 00 00 00 0f 10 06 0f 10 4e 10 0f 10 56 20 0f 10 5e 30 48 83 c6 40 48 83 ea 40 0f 29 07 0f 29 4f 10 0f 29 57 20 <0f> 29 5f 30 48 83 c7 40 48 83 fa 40 77 d0 0f 11 29 0f 11 71 f0 0f RSP: 002b:00007ffed3694be8 EFLAGS: 00010202 RAX: 000000002005d540 RBX: 0000000000000000 RCX: 000000002007c6c7 RDX: 00000000000006c7 RSI: 00007f4ff241fca8 RDI: 000000002007bfd0 RBP: 00007ffed3694ca8 R08: fffffffffffffff0 R09: 00007f4ff2400000 R10: 00007f4ff24011c0 R11: 000000002005d540 R12: 00000000000cc97e R13: 00007ffed3694cd0 R14: 00007ffed3694cf0 R15: 0000000000000032