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authorAndrew G. Morgan <morgan@kernel.org>2009-11-23 04:57:52 +0000
committerJames Morris <jmorris@namei.org>2009-11-24 08:53:29 +1100
commitc4a5af54c8ef277a59189fc9358e190f3c1b8206 (patch)
treeeab45631ca769f92f01276066ee58861ad494d18 /security/Kconfig
parentfe542cf59bf0b31afe72b9e9749c0f6645419fa0 (diff)
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Silence the existing API for capability version compatibility check.
When libcap, or other libraries attempt to confirm/determine the supported capability version magic, they generally supply a NULL dataptr to capget(). In this case, while returning the supported/preferred magic (via a modified header content), the return code of this system call may be 0, -EINVAL, or -EFAULT. No libcap code depends on the previous -EINVAL etc. return code, and all of the above three return codes can accompany a valid (successful) attempt to determine the requested magic value. This patch cleans up the system call to return 0, if the call is successfully being used to determine the supported/preferred capability magic value. Signed-off-by: Andrew G. Morgan <morgan@kernel.org> Acked-by: Steve Grubb <sgrubb@redhat.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/Kconfig')
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