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| author | Sasha Levin <sasha.levin@oracle.com> | 2012-10-04 19:56:40 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-10-09 23:33:37 -0400 |
| commit | ffd8d101a3a7d3f2e79deee1e342801703b6dc70 (patch) | |
| tree | d2ca06ce67886ce0c9498c6fbce05dc11d93fa9c /fs/namei.c | |
| parent | 547b1e81afe3119f7daf702cc03b158495535a25 (diff) | |
| download | linux-ffd8d101a3a7d3f2e79deee1e342801703b6dc70.tar.gz linux-ffd8d101a3a7d3f2e79deee1e342801703b6dc70.tar.bz2 linux-ffd8d101a3a7d3f2e79deee1e342801703b6dc70.zip | |
fs: prevent use after free in auditing when symlink following was denied
Commit "fs: add link restriction audit reporting" has added auditing of failed
attempts to follow symlinks. Unfortunately, the auditing was being done after
the struct path structure was released earlier.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
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, 1 insertions, 1 deletions
diff --git a/fs/namei.c b/fs/namei.c index aa30d19e9edd..6d47fac64292 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -692,9 +692,9 @@ static inline int may_follow_link(struct path *link, struct nameidata *nd) if (uid_eq(parent->i_uid, inode->i_uid)) return 0; + audit_log_link_denied("follow_link", link); path_put_conditional(link, nd); path_put(&nd->path); - audit_log_link_denied("follow_link", link); return -EACCES; } |