From d7223f29a17d29152f79eb26196bc857735a6020 Mon Sep 17 00:00:00 2001 From: Eric Paris Date: Mon, 11 May 2009 13:59:16 -0400 Subject: [PATCH] IMA: Handle dentry_open failures commit f06dd16a03f6f7f72fab4db03be36e28c28c6fd6 upstream. Currently IMA does not handle failures from dentry_open(). This means that we leave a pointer set to ERR_PTR(errno) and then try to use it just a few lines later in fput(). Oops. Signed-off-by: Eric Paris Acked-by: Mimi Zohar Signed-off-by: James Morris Signed-off-by: Greg Kroah-Hartman --- security/integrity/ima/ima_main.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c index 2bfad5770a24..4ed0c35dda5f 100644 --- a/security/integrity/ima/ima_main.c +++ b/security/integrity/ima/ima_main.c @@ -128,10 +128,6 @@ static int get_path_measurement(struct ima_iint_cache *iint, struct file *file, { int rc = 0; - if (IS_ERR(file)) { - pr_info("%s dentry_open failed\n", filename); - return rc; - } iint->opencount++; iint->readcount++; @@ -197,6 +193,12 @@ int ima_path_check(struct path *path, int mask) struct vfsmount *mnt = mntget(path->mnt); file = dentry_open(dentry, mnt, O_RDONLY, current_cred()); + if (IS_ERR(file)) { + pr_info("%s dentry_open failed\n", dentry->d_name.name); + rc = PTR_ERR(file); + file = NULL; + goto out; + } rc = get_path_measurement(iint, file, dentry->d_name.name); } out: -- 2.39.5