This is a note to let you know that I've just added the patch titled
cfg80211: fix cfg80211_beacon_dup
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
cfg80211-fix-cfg80211_beacon_dup.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From bee92d06157fc39d5d7836a061c7d41289a55797 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@xxxxxxxx>
Date: Fri, 2 Feb 2018 16:31:23 +0100
Subject: cfg80211: fix cfg80211_beacon_dup
From: Arnd Bergmann <arnd@xxxxxxxx>
commit bee92d06157fc39d5d7836a061c7d41289a55797 upstream.
gcc-8 warns about some obviously incorrect code:
net/mac80211/cfg.c: In function 'cfg80211_beacon_dup':
net/mac80211/cfg.c:2896:3: error: 'memcpy' source argument is the same as destination [-Werror=restrict]
>From the context, I conclude that we want to copy from beacon into
new_beacon, as we do in the rest of the function.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 73da7d5bab79 ("mac80211: add channel switch command and beacon callbacks")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/mac80211/cfg.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2792,7 +2792,7 @@ cfg80211_beacon_dup(struct cfg80211_beac
}
if (beacon->probe_resp_len) {
new_beacon->probe_resp_len = beacon->probe_resp_len;
- beacon->probe_resp = pos;
+ new_beacon->probe_resp = pos;
memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
pos += beacon->probe_resp_len;
}
Patches currently in stable-queue which might be from arnd@xxxxxxxx are
queue-4.9/x86-oprofile-fix-bogus-gcc-8-warning-in-nmi_setup.patch
queue-4.9/cfg80211-fix-cfg80211_beacon_dup.patch
queue-4.9/kbuild-always-define-endianess-in-kconfig.h.patch