diff options
| author | Johannes Berg <johannes@sipsolutions.net> | 2009-07-29 22:07:44 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-08-16 14:18:37 -0700 |
| commit | 0d88ecb27391b7bad5b5e3c1c815860b42f8aed2 (patch) | |
| tree | 1cb9d16bb32c494aaf96f74413baf418fedbf9b4 | |
| parent | 678af37c3b4195946ca3460477ba67fab6a750cf (diff) | |
cfg80211: add two missing NULL pointer checks
commit cd3468bad96c00b5a512f551674f36776129520e upstream.
These pointers can be NULL, the is_mesh() case isn't
ever hit in the current kernel, but cmp_ies() can be
hit under certain conditions.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | net/wireless/scan.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c index bc7f7882986..f5be6a85476 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -118,7 +118,7 @@ static int cmp_ies(u8 num, u8 *ies1, size_t len1, u8 *ies2, size_t len2) if (!ie1 && !ie2) return 0; - if (!ie1) + if (!ie1 || !ie2) return -1; r = memcmp(ie1 + 2, ie2 + 2, min(ie1[1], ie2[1])); @@ -171,6 +171,8 @@ static bool is_mesh(struct cfg80211_bss *a, ie = find_ie(WLAN_EID_MESH_CONFIG, a->information_elements, a->len_information_elements); + if (!ie) + return false; if (ie[1] != IEEE80211_MESH_CONFIG_LEN) return false; |