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Description of problem:

find_key_by_type_and_desc() in libkeyutils uses sscanf() to parse the lines read from /proc/keys and puts '%n' in the format to get the length of the data parsed to that point.

Unfortunately, (a) it is undefined in the manual page as to whether %n actually contributes to the returned count of extracted values and (b) if it wasn't set, there's no way to know that if there is no extracted value subsequent to it.

Version-Release number of selected component (if applicable):

keyutils-1.5.7 and keyutils-1.5.8

Fixed upstream:

http://git.kernel.org/cgit/linux/kernel/git/dhowells/keyutils.git/commit/?id=9d22b9b8be886b01d0e929d658b39afc729241eb

This is fixed upstream:

http://git.kernel.org/cgit/linux/kernel/git/dhowells/keyutils.git/commit/?h=development&id=9d22b9b8be886b01d0e929d658b39afc729241eb

This request was resolved in Red Hat Enterprise Linux 7.0.

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This request was NOT resolved in Red Hat Enterprise Linux 7.0.

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