diff options
| author | Andrew G. Morgan <morgan@kernel.org> | 2009-11-23 07:57:52 +0300 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2009-11-24 00:53:29 +0300 |
| commit | c4a5af54c8ef277a59189fc9358e190f3c1b8206 (patch) | |
| tree | eab45631ca769f92f01276066ee58861ad494d18 /security | |
| parent | fe542cf59bf0b31afe72b9e9749c0f6645419fa0 (diff) | |
| download | linux-c4a5af54c8ef277a59189fc9358e190f3c1b8206.tar.xz | |
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')
0 files changed, 0 insertions, 0 deletions