Bugzilla – Bug 1223116
VUL-0: CVE-2024-26869: kernel: f2fs: race case can cause data corruption in meta_inode page
Last modified: 2024-04-19 09:00:06 UTC
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to truncate meta inode pages forcely Below race case can cause data corruption: Thread A GC thread - gc_data_segment - ra_data_block - locked meta_inode page - f2fs_inplace_write_data - invalidate_mapping_pages : fail to invalidate meta_inode page due to lock failure or dirty|writeback status - f2fs_submit_page_bio : write last dirty data to old blkaddr - move_data_block - load old data from meta_inode page - f2fs_submit_page_write : write old data to new blkaddr Because invalidate_mapping_pages() will skip invalidating page which has unclear status including locked, dirty, writeback and so on, so we need to use truncate_inode_pages_range() instead of invalidate_mapping_pages() to make sure meta_inode page will be dropped. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-26869 https://www.cve.org/CVERecord?id=CVE-2024-26869 https://git.kernel.org/stable/c/04226d8e3c4028dc451e9d8777356ec0f7919253 https://git.kernel.org/stable/c/77bfdb89cc222fc7bfe198eda77bdc427d5ac189 https://git.kernel.org/stable/c/9f0c4a46be1fe9b97dbe66d49204c1371e3ece65 https://git.kernel.org/stable/c/c92f2927df860a60ba815d3ee610a944b92a8694 https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-26869.mbox https://bugzilla.redhat.com/show_bug.cgi?id=2275713
f2fs is completely unsupported (we don't compile it in any branch). Nothing to do here, assigning back to sec.
(In reply to Anthony Iliopoulos from comment #1) > f2fs is completely unsupported (we don't compile it in any branch). Nothing > to do here, assigning back to sec. Thanks Anthony. Closing