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authorDan Rosenberg <drosenberg@vsecurity.com>2010-11-12 12:44:42 -0800
committerDavid S. Miller <davem@davemloft.net>2010-11-12 12:44:42 -0800
commit5ef41308f94dcbb3b7afc56cdef1c2ba53fa5d2f (patch)
treec21d9c1c7f2792b0889432988d42e9b90f953358 /README
parente68e6133e2daef6fc40e91621a1e26938e428e9e (diff)
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x25: Prevent crashing when parsing bad X.25 facilities
Now with improved comma support. On parsing malformed X.25 facilities, decrementing the remaining length may cause it to underflow. Since the length is an unsigned integer, this will result in the loop continuing until the kernel crashes. This patch adds checks to ensure decrementing the remaining length does not cause it to wrap around. Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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