diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2021-04-16 10:42:14 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2021-04-19 14:25:50 +0300 |
| commit | 010bfbe768f7ecc876ffba92db30432de4997e2a (patch) | |
| tree | eb24755fe5a83b47a21c8b4685723b13be09b68c | |
| parent | 2f5164447cdab6419edddde3a214f93a53aa4e60 (diff) | |
| download | linux-010bfbe768f7ecc876ffba92db30432de4997e2a.tar.xz | |
cfg80211: scan: drop entry from hidden_list on overflow
If we overflow the maximum number of BSS entries and free the
new entry, drop it from any hidden_list that it may have been
added to in the code above or in cfg80211_combine_bsses().
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20210416094212.5de7d1676ad7.Ied283b0bc5f504845e7d6ab90626bdfa68bb3dc0@changeid
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | net/wireless/scan.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c index c3b51efff5c6..b21058698a9f 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -1751,6 +1751,8 @@ cfg80211_bss_update(struct cfg80211_registered_device *rdev, if (rdev->bss_entries >= bss_entries_limit && !cfg80211_bss_expire_oldest(rdev)) { + if (!list_empty(&new->hidden_list)) + list_del(&new->hidden_list); kfree(new); goto drop; } |