The BPF_S_ANC_NLATTR_NEST extension implementation in the
sk_run_filter function in net/core/filter.c in the Linux kernel
through 3.14.3 uses the reverse order in a certain subtraction, which
allows local users to cause a denial of service (over-read and system
crash) via crafted BPF instructions. NOTE: the affected code was moved
to the __skb_get_nlattr_nest function before the vulnerability was
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20140509 Re: CVE request Linux kernel: filter: prevent nla extensions to peek beyond the end of the message
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