Denial of Service Vulnerability in ext4_orphan_del Function

CVE-2013-2015 · MEDIUM Severity

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

The ext4_orphan_del function in fs/ext4/namei.c in the Linux kernel before 3.7.3 does not properly handle orphan-list entries for non-journal filesystems, which allows physically proximate attackers to cause a denial of service (system hang) via a crafted filesystem on removable media, as demonstrated by the e2fsprogs tests/f_orphan_extents_inode/image.gz test.

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