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| author | Johannes Berg <johannes.berg@intel.com> | 2023-12-11 09:05:32 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2023-12-12 10:14:57 +0100 |
| commit | 1fc4a3eec50d726f4663ad3c0bb0158354d6647a (patch) | |
| tree | b9c1ec591b9fe2383be203c20c7ad1940bc43ebb /net/mac80211 | |
| parent | 98849ba2aa9db46e62720fb686a9d63ed9887806 (diff) | |
| download | lwn-1fc4a3eec50d726f4663ad3c0bb0158354d6647a.tar.gz lwn-1fc4a3eec50d726f4663ad3c0bb0158354d6647a.zip | |
wifi: mac80211: mesh: check element parsing succeeded
ieee802_11_parse_elems() can return NULL, so we must
check for the return value.
Fixes: 5d24828d05f3 ("mac80211: always allocate struct ieee802_11_elems")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://msgid.link/20231211085121.93dea364f3d3.Ie87781c6c48979fb25a744b90af4a33dc2d83a28@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/mesh_plink.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index dbabeefe4515..2da6ecf0077d 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -1247,6 +1247,8 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata, return; } elems = ieee802_11_parse_elems(baseaddr, len - baselen, true, NULL); - mesh_process_plink_frame(sdata, mgmt, elems, rx_status); - kfree(elems); + if (elems) { + mesh_process_plink_frame(sdata, mgmt, elems, rx_status); + kfree(elems); + } } |