Denial of Service Vulnerability in ext4_iget Function

CVE-2018-1092 · HIGH Severity

AV:N/AC:M/AU:N/C:N/I:N/A:C

The ext4_iget function in fs/ext4/inode.c in the Linux kernel through 4.15.15 mishandles the case of a root directory with a zero i_links_count, which allows attackers to cause a denial of service (ext4_process_freed_data NULL pointer dereference and OOPS) via a crafted ext4 image.

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