------------[ cut here ]------------ WARNING: CPU: 0 PID: 7128 at fs/udf/udfdecl.h:123 udf_add_free_space fs/udf/balloc.c:125 [inline] WARNING: CPU: 0 PID: 7128 at fs/udf/udfdecl.h:123 udf_table_prealloc_blocks fs/udf/balloc.c:576 [inline] WARNING: CPU: 0 PID: 7128 at fs/udf/udfdecl.h:123 udf_prealloc_blocks+0xf13/0x1310 fs/udf/balloc.c:709 Modules linked in: CPU: 0 PID: 7128 Comm: syz-executor.0 Not tainted 6.4.0-rc1-syzkaller-00025-gd295b66a7b66 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 RIP: 0010:udf_updated_lvid fs/udf/udfdecl.h:121 [inline] RIP: 0010:udf_add_free_space fs/udf/balloc.c:125 [inline] RIP: 0010:udf_table_prealloc_blocks fs/udf/balloc.c:576 [inline] RIP: 0010:udf_prealloc_blocks+0xf13/0x1310 fs/udf/balloc.c:709 Code: 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 c3 94 8d fe e9 4b f7 ff ff e8 b9 94 8d fe 0f 0b e9 67 f8 ff ff e8 ad 94 8d fe <0f> 0b e9 c9 fe ff ff 89 d9 80 e1 07 fe c1 38 c1 0f 8c 08 f2 ff ff RSP: 0018:ffffc9000683f140 EFLAGS: 00010293 RAX: ffffffff82fdd293 RBX: 00000000ff5efe9d RCX: ffff88807b199dc0 RDX: 0000000000000000 RSI: 00000000ff5efe9d RDI: 0000000000000000 RBP: ffffc9000683f2b0 R08: ffffffff82fdd156 R09: fffffbfff1cab806 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807ab63cc0 R13: dffffc0000000000 R14: ffff888032b9b01c R15: ffff8880290f8678 FS: 00007f190f8a5700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002000b000 CR3: 0000000024ce1000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: udf_prealloc_extents fs/udf/inode.c:1038 [inline] inode_getblk fs/udf/inode.c:896 [inline] udf_map_block+0x2658/0x4ff0 fs/udf/inode.c:450 __udf_get_block+0x126/0x410 fs/udf/inode.c:464 __block_write_begin_int+0x548/0x1a50 fs/buffer.c:2064 __block_write_begin fs/buffer.c:2114 [inline] block_write_begin+0x9c/0x1f0 fs/buffer.c:2175 udf_write_begin+0x10a/0x190 fs/udf/inode.c:265 generic_perform_write+0x300/0x5e0 mm/filemap.c:3923 __generic_file_write_iter+0x17a/0x400 mm/filemap.c:4051 udf_file_write_iter+0x2fc/0x660 fs/udf/file.c:115 call_write_iter include/linux/fs.h:1868 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x790/0xb20 fs/read_write.c:584 ksys_write+0x1a0/0x2c0 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f190ea8c169 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f190f8a5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f190ebac050 RCX: 00007f190ea8c169 RDX: 000000000000fea7 RSI: 0000000020000940 RDI: 0000000000000004 RBP: 00007f190eae7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe4745e77f R14: 00007f190f8a5300 R15: 0000000000022000