4.9-stable review patch. If anyone has any objections, please let me know.
------------------ From: Eric Richter <eric...@linux.vnet.ibm.com> commit 9a11a18902bc3b904353063763d06480620245a6 upstream. When the "policy" securityfs file is opened for read, it is opened as a sequential file. However, when it is eventually released, there is no cleanup for the sequential file, therefore some memory is leaked. This patch adds a call to seq_release() in ima_release_policy() to clean up the memory when the file is opened for read. Fixes: 80eae209d63a IMA: allow reading back the current policy Reported-by: Colin Ian King <colin.k...@canonical.com> Signed-off-by: Eric Richter <eric...@linux.vnet.ibm.com> Tested-by: Colin Ian King <colin.k...@canonical.com> Signed-off-by: Mimi Zohar <zo...@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org> --- security/integrity/ima/ima_fs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/security/integrity/ima/ima_fs.c +++ b/security/integrity/ima/ima_fs.c @@ -401,7 +401,7 @@ static int ima_release_policy(struct ino const char *cause = valid_policy ? "completed" : "failed"; if ((file->f_flags & O_ACCMODE) == O_RDONLY) - return 0; + return seq_release(inode, file); if (valid_policy && ima_check_policy() < 0) { cause = "failed";