diff options
| author | Anant Thazhemadam <anant.thazhemadam@gmail.com> | 2020-10-07 09:24:01 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-10-14 10:31:21 +0200 |
| commit | c37528577ade675fd4d597b714395e74798797c2 (patch) | |
| tree | f95968f2246171e06f3b0850c7bf0ec5622b7f03 /drivers/gpu | |
| parent | be92b3b5e5aae0a55699d539783ea33f34a240ff (diff) | |
net: wireless: nl80211: fix out-of-bounds access in nl80211_del_key()
commit 3dc289f8f139997f4e9d3cfccf8738f20d23e47b upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
0 files changed, 0 insertions, 0 deletions