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authorLukasz Pawelczyk <l.pawelczyk@samsung.com>2015-08-25 12:39:46 +0200
committerCasey Schaufler <casey@schaufler-ca.com>2015-10-09 15:12:46 -0700
commit5f2bfe2f1de8b745dc294acaf2ca2ad68e09b374 (patch)
tree0ba2486e5d6e7a3a4f5a5c4b61a5eaa21e72b3b7 /security
parent049e6dde7e57f0054fdc49102e7ef4830c698b46 (diff)
downloadlinux-linaro-stable-5f2bfe2f1de8b745dc294acaf2ca2ad68e09b374.tar.gz
Smack: fix a NULL dereference in wrong smack_import_entry() usage
'commit e774ad683f42 ("smack: pass error code through pointers")' made this function return proper error codes instead of NULL. Reflect that. This is a fix for a NULL dereference introduced in 'commit 21abb1ec414c ("Smack: IPv6 host labeling")' echo "$SOME_IPV6_ADDR \"test" > /smack/ipv6host (this should return EINVAL, it doesn't) cat /smack/ipv6host (derefences 0x000a) Signed-off-by: Lukasz Pawelczyk <l.pawelczyk@samsung.com> Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Diffstat (limited to 'security')
-rw-r--r--security/smack/smackfs.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index c20b154a33f2..103a619b1360 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -1501,8 +1501,8 @@ static ssize_t smk_write_net6addr(struct file *file, const char __user *buf,
*/
if (smack[0] != '-') {
skp = smk_import_entry(smack, 0);
- if (skp == NULL) {
- rc = -EINVAL;
+ if (IS_ERR(skp)) {
+ rc = PTR_ERR(skp);
goto free_out;
}
} else {