SELinux: fix array out of bounds when mounting with selinux options
authorEric Paris <eparis@redhat.com>
Wed, 19 Sep 2007 21:19:12 +0000 (17:19 -0400)
committerJames Morris <jmorris@namei.org>
Wed, 19 Sep 2007 22:06:40 +0000 (08:06 +1000)
commit31e879309474d1666d645b96de99d0b682fa055f
treebb9d45dc85e03044b5ee7635f3646774bcbb30d4
parenta88a8eff1e6e32d3288986a9d36c6a449c032d3a
SELinux: fix array out of bounds when mounting with selinux options

Given an illegal selinux option it was possible for match_token to work in
random memory at the end of the match_table_t array.

Note that privilege is required to perform a context mount, so this issue is
effectively limited to root only.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
security/selinux/hooks.c