CVE-2024-53235 erofs: fix file-backed mounts over FUSE

In the Linux kernel, the following vulnerability has been resolved: erofs: fix file-backed mounts over FUSE syzbot reported a null-ptr-deref in fusereadargsfill: fusereadfolio+0xb0/0x100 fs/fuse/file.c:905 filemapreadfolio+0xc6/0x2a0 mm/filemap.c:2367 doreadcachefolio+0x263/0x5c0 mm/filemap.c:382...