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| author |   Kees Cook <keescook@chromium.org> | 2012-07-25 17:29:08 -0700 |
|---|---|---|
| committer |   Al Viro <viro@zeniv.linux.org.uk> | 2012-07-29 21:43:08 +0400 |
| commit | a51d9eaa41866ab6b4b6ecad7b621f8b66ece0dc (patch) | |
| tree | f8ab532f946ec7f9ccdabb6a394d952981084122 /fs/namei.c | |
| parent | fs: add link restrictions (diff) | |
| download | linux-dev-a51d9eaa41866ab6b4b6ecad7b621f8b66ece0dc.tar.xz linux-dev-a51d9eaa41866ab6b4b6ecad7b621f8b66ece0dc.zip | |
fs: add link restriction audit reporting
Adds audit messages for unexpected link restriction violations so that
system owners will have some sort of potentially actionable information
about misbehaving processes.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/namei.c')
| -rw-r--r-- | fs/namei.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/namei.c b/fs/namei.c index 3861d85f8488..618d3531cf9f 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -692,6 +692,7 @@ static inline int may_follow_link(struct path *link, struct nameidata *nd) path_put_conditional(link, nd); path_put(&nd->path); + audit_log_link_denied("follow_link", link); return -EACCES; } @@ -760,6 +761,7 @@ static int may_linkat(struct path *link) capable(CAP_FOWNER)) return 0; + audit_log_link_denied("linkat", link); return -EPERM; } |