This is a note to let you know that I've just added the patch titled
brcm80211: fix possible memleak in brcmf_proto_msgbuf_attach
to the 4.4-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:
brcm80211-fix-possible-memleak-in-brcmf_proto_msgbuf.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 8fbd3586c6cf5819cf1c494f0c47aa114db5c347
Author: Wang Yufen <wangyufen@xxxxxxxxxx>
Date: Mon Jul 20 17:36:05 2020 +0800
brcm80211: fix possible memleak in brcmf_proto_msgbuf_attach
[ Upstream commit 6c151410d5b57e6bb0d91a735ac511459539a7bf ]
When brcmf_proto_msgbuf_attach fail and msgbuf->txflow_wq != NULL,
we should destroy the workqueue.
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Wang Yufen <wangyufen@xxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/1595237765-66238-1-git-send-email-wangyufen@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
index f944f356d9c51..cacb43573f579 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/msgbuf.c
@@ -1530,6 +1530,8 @@ int brcmf_proto_msgbuf_attach(struct brcmf_pub *drvr)
BRCMF_TX_IOCTL_MAX_MSG_SIZE,
msgbuf->ioctbuf,
msgbuf->ioctbuf_handle);
+ if (msgbuf->txflow_wq)
+ destroy_workqueue(msgbuf->txflow_wq);
kfree(msgbuf);
}
return -ENOMEM;
