------------[ cut here ]------------ WARNING: CPU: 0 PID: 8981 at fs/udf/inode.c:2080 __udf_add_aext+0x555/0x700 fs/udf/inode.c:2079 Modules linked in: CPU: 0 UID: 0 PID: 8981 Comm: syz.2.734 Not tainted 6.12.0-rc6-next-20241106-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__udf_add_aext+0x555/0x700 fs/udf/inode.c:2079 Code: e2 e5 fe 49 8b 3c 24 4c 89 fe e8 f6 b3 0a ff 31 c0 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 2c 79 7b fe 90 <0f> 0b 90 e9 e7 fb ff ff e8 1e 79 7b fe 90 0f 0b 90 e9 54 fc ff ff RSP: 0000:ffffc90011c664f8 EFLAGS: 00010283 RAX: ffffffff831a4e34 RBX: 1ffff9200238cceb RCX: 0000000000040000 RDX: ffffc9000b9b4000 RSI: 0000000000034d2b RDI: 0000000000034d2c RBP: 0000000000000000 R08: ffffffff831a4a16 R09: ffffffff831a4946 R10: 0000000000000002 R11: ffff888025621e00 R12: ffffc90011c66750 R13: 0000000000000004 R14: dffffc0000000000 R15: ffffc90011c66758 FS: 00007febec43b6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3556bd CR3: 000000007d234000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udf_add_aext fs/udf/inode.c:2137 [inline] udf_insert_aext fs/udf/inode.c:2316 [inline] udf_update_extents fs/udf/inode.c:1204 [inline] inode_getblk fs/udf/inode.c:918 [inline] udf_map_block+0x3e16/0x5340 fs/udf/inode.c:447 __udf_get_block+0x126/0x410 fs/udf/inode.c:461 __block_write_begin_int+0x50c/0x1a70 fs/buffer.c:2116 udf_page_mkwrite+0x670/0xa40 fs/udf/file.c:65 do_page_mkwrite+0x198/0x480 mm/memory.c:3183 wp_page_shared mm/memory.c:3584 [inline] do_wp_page+0x2352/0x51e0 mm/memory.c:3734 handle_pte_fault+0x1117/0x66b0 mm/memory.c:5824 __handle_mm_fault mm/memory.c:5951 [inline] handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6119 faultin_page mm/gup.c:1187 [inline] __get_user_pages+0x1c82/0x49e0 mm/gup.c:1485 __get_user_pages_locked mm/gup.c:1751 [inline] faultin_page_range+0x4e7/0x850 mm/gup.c:1975 madvise_populate mm/madvise.c:951 [inline] do_madvise+0x6f4/0x4d80 mm/madvise.c:1681 __do_sys_madvise mm/madvise.c:1700 [inline] __se_sys_madvise mm/madvise.c:1698 [inline] __x64_sys_madvise+0xa6/0xc0 mm/madvise.c:1698 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7febeb57e719 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:00007febec43b038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c RAX: ffffffffffffffda RBX: 00007febeb736058 RCX: 00007febeb57e719 RDX: 0000000000000017 RSI: 0000000000800000 RDI: 00000000200ec000 RBP: 00007febeb5f139e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007febeb736058 R15: 00007ffe0a7e8038