CVE-2026-90419

Description

In the Linux kernel, the following vulnerability has been resolved: nilfs2: prevent out-of-bounds read in super root block parsing super-root inode metadata size is trusted before nilfs_read_inode_common(). Reject super-root inode sizes whose computed on-disk footprint exceeds the filesystem block size. This prevents malformed filesystem images from making nilfs_read_inode_common() read past the end of the super-root block. [ryusuke: clarify the commit title]

References

• https://git.kernel.org/stable/c/15c8559376416a84c3d8402fd8d0c89bb323d05f
• https://git.kernel.org/stable/c/16df2520502867a4f34e202b89d01243d59bb8b5
• https://git.kernel.org/stable/c/5b69ebe20d7f944c1f45177dca0c11474ac277cc
• https://git.kernel.org/stable/c/7029e70cf86d5c54c0a2812479b0bee2cabcbaaa
• https://git.kernel.org/stable/c/71bd64471ff583101b4a33dfc838ce29aef57960