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| author |   Anant Thazhemadam <anant.thazhemadam@gmail.com> | 2020-10-07 09:24:01 +0530 |
|---|---|---|
| committer |   Johannes Berg <johannes.berg@intel.com> | 2020-10-08 12:37:25 +0200 |
| commit | 3dc289f8f139997f4e9d3cfccf8738f20d23e47b (patch) | |
| tree | 878859c1619029ae7c6ccb291cb941257f243a81 /drivers/usb/cdns3/cdns3-debug.h | |
| parent | Merge tag 'rxrpc-fixes-20201005' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs (diff) | |
| download | wireguard-linux-3dc289f8f139997f4e9d3cfccf8738f20d23e47b.tar.xz wireguard-linux-3dc289f8f139997f4e9d3cfccf8738f20d23e47b.zip | |
net: wireless: nl80211: fix out-of-bounds access in nl80211_del_key()
In nl80211_parse_key(), key.idx is first initialized as -1.
If this value of key.idx remains unmodified and gets returned, and
nl80211_key_allowed() also returns 0, then rdev_del_key() gets called
with key.idx = -1.
This causes an out-of-bounds array access.
Handle this issue by checking if the value of key.idx after
nl80211_parse_key() is called and return -EINVAL if key.idx < 0.
Cc: stable@vger.kernel.org
Reported-by: syzbot+b1bb342d1d097516cbda@syzkaller.appspotmail.com
Tested-by: syzbot+b1bb342d1d097516cbda@syzkaller.appspotmail.com
Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com>
Link: https://lore.kernel.org/r/20201007035401.9522-1-anant.thazhemadam@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/usb/cdns3/cdns3-debug.h')
0 files changed, 0 insertions, 0 deletions