CVE-2024-49958 ocfs2: reserve space for inline xattr before attaching reflink tree

In the Linux kernel, the following vulnerability has been resolved: ocfs2: reserve space for inline xattr before attaching reflink tree One of our customers reported a crash and a corrupted ocfs2 filesystem. The crash was due to the detection of corruption. Upon troubleshooting, the fsck -fn outp...

CVE-2024-49958

CVE-2024-49958 affects OCFS2 in the Linux kernel, where during reflink-based operations inline xattrs space was reserved without confirming root metadata capacity. The function ocfs2_reflink_xattr_inline() reduced l_count from 243 to 227 while root metadata block already had extents up to 230, ca...