ext2: reject inodes with zero i_nlink and valid mode in ext2_iget()

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CVE-2026-46002

A flaw was found in the Linux kernel's ext2 filesystem. A local attacker could create a specially crafted filesystem image with malformed inodes index nodes that, when mounted, would not be properly rejected by the ext2iget function. This could lead to a kernel warning and potentially a system...

The vulnerability of the __ext4_iget() function in the fs/ext4/inode.c file of the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the ext4iget function in the fs/ext4/inode.c file of the Linux operating system is related to incorrect validation of input data. Exploiting this vulnerability could allow an attacker to cause a service failure...