CyberRota Analysis
AI-GeneratedThe vulnerability affects the Linux kernel's handling of NTFS filesystems, specifically within the indx_find_buffer() function, which can lead to a stack overflow due to unbounded recursion when processing crafted NTFS images with circular index node references. This can result in system crashes when a malicious NTFS filesystem is mounted and certain file operations are performed. Linux system administrators and developers managing NTFS support should prioritize this issue to prevent potential system instability and crashes.
Original NVD Description
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: add depth limit to indx_find_buffer to prevent stack overflow indx_find_buffer() recursively descends the B+ tree index with no depth limit. A crafted NTFS image with circular index node references causes unbounded recursion, overflowing the kernel stack and panicking the system. This is reachable by mounting a malicious NTFS filesystem (e.g. from a USB drive via desktop automount) and deleting a file whose index entry triggers the rebalancing fallback path in indx_delete_entry(). Add a depth parameter and bail out with -EINVAL when it reaches the fnd->nodes array bound, matching the constraint already enforced by fnd_push() in indx_find(). The related function indx_find() was previously patched for a similar infinite-loop issue (commit 1732053c8a6b), but indx_find_buffer() was missed.