VYPR
← All advisories
Unrated severityNVD Advisory· Published Oct 21, 2024· Updated Nov 3, 2025

nilfs2: fix potential oob read in nilfs_btree_check_delete()

CVE-2024-47757

Description

In the Linux kernel, the following vulnerability has been resolved:

nilfs2: fix potential oob read in nilfs_btree_check_delete()

The function nilfs_btree_check_delete(), which checks whether degeneration to direct mapping occurs before deleting a b-tree entry, causes memory access outside the block buffer when retrieving the maximum key if the root node has no entries.

This does not usually happen because b-tree mappings with 0 child nodes are never created by mkfs.nilfs2 or nilfs2 itself. However, it can happen if the b-tree root node read from a device is configured that way, so fix this potential issue by adding a check for that case.

Affected products

159

Patches

0

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

9

News mentions

0

No linked articles in our index yet.