diff options
| author | Colin Ian King <colin.king@canonical.com> | 2020-10-30 01:24:07 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2020-11-06 12:02:24 +0300 |
| commit | ba5c25236bc3d399df82ebe923490ea8d2d35cf2 (patch) | |
| tree | 96b1703109e36c8625fdc22020eade9e03f39839 /net/wireless/scan.c | |
| parent | 9c97c88d2f4b221d99491c3196da42004c195fb5 (diff) | |
| download | linux-ba5c25236bc3d399df82ebe923490ea8d2d35cf2.tar.xz | |
nl80211/cfg80211: fix potential infinite loop
The for-loop iterates with a u8 loop counter and compares this
with the loop upper limit of request->n_ssids which is an int type.
There is a potential infinite loop if n_ssids is larger than the
u8 loop counter, so fix this by making the loop counter an int.
Addresses-Coverity: ("Infinite loop")
Fixes: c8cb5b854b40 ("nl80211/cfg80211: support 6 GHz scanning")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20201029222407.390218-1-colin.king@canonical.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/scan.c')
| -rw-r--r-- | net/wireless/scan.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 8d0e49c46db3..3409f37d838b 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -694,7 +694,7 @@ static void cfg80211_scan_req_add_chan(struct cfg80211_scan_request *request, static bool cfg80211_find_ssid_match(struct cfg80211_colocated_ap *ap, struct cfg80211_scan_request *request) { - u8 i; + int i; u32 s_ssid; for (i = 0; i < request->n_ssids; i++) { |