CVE-2024-53221

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> f2fs: fix null-ptr-deref in f2fs_submit_page_bio()<br /> <br /> There&amp;#39;s issue as follows when concurrently installing the f2fs.ko<br /> module and mounting the f2fs file system:<br /> KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]<br /> RIP: 0010:__bio_alloc+0x2fb/0x6c0 [f2fs]<br /> Call Trace:<br /> <br /> f2fs_submit_page_bio+0x126/0x8b0 [f2fs]<br /> __get_meta_page+0x1d4/0x920 [f2fs]<br /> get_checkpoint_version.constprop.0+0x2b/0x3c0 [f2fs]<br /> validate_checkpoint+0xac/0x290 [f2fs]<br /> f2fs_get_valid_checkpoint+0x207/0x950 [f2fs]<br /> f2fs_fill_super+0x1007/0x39b0 [f2fs]<br /> mount_bdev+0x183/0x250<br /> legacy_get_tree+0xf4/0x1e0<br /> vfs_get_tree+0x88/0x340<br /> do_new_mount+0x283/0x5e0<br /> path_mount+0x2b2/0x15b0<br /> __x64_sys_mount+0x1fe/0x270<br /> do_syscall_64+0x5f/0x170<br /> entry_SYSCALL_64_after_hwframe+0x76/0x7e<br /> <br /> Above issue happens as the biset of the f2fs file system is not<br /> initialized before register "f2fs_fs_type".<br /> To address above issue just register "f2fs_fs_type" at the last in<br /> init_f2fs_fs(). Ensure that all f2fs file system resources are<br /> initialized.