Subject: Re: [PATCH v4.19.y] ath10k: Fix TKIP Michael MIC verification for PCIe

From: Greg Kroah-Hartman <[email-masked]>
Date: Fri, 4 Aug 2023 12:42:00 +0200

On Fri, Aug 04, 2023 at 12:28:18PM +0200, Greg Kroah-Hartman wrote:
> On Wed, Aug 02, 2023 at 03:52:13PM +0530, Ashwin Dayanand Kamat wrote:
> > From: Wen Gong <[email-masked]>
> > 
> > commit 0dc267b13f3a7e8424a898815dd357211b737330 upstream.
> > 
> > TKIP Michael MIC was not verified properly for PCIe cases since the
> > validation steps in ieee80211_rx_h_michael_mic_verify() in mac80211 did
> > not get fully executed due to unexpected flag values in
> > ieee80211_rx_status.
> > 
> > Fix this by setting the flags property to meet mac80211 expectations for
> > performing Michael MIC validation there. This fixes CVE-2020-26141. It
> > does the same as ath10k_htt_rx_proc_rx_ind_hl() for SDIO which passed
> > MIC verification case. This applies only to QCA6174/QCA9377 PCIe.
> > 
> > Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00110-QCARMSWP-1
> > 
> > Cc: [email-masked]
> > Signed-off-by: Wen Gong <[email-masked]>
> > Signed-off-by: Jouni Malinen <[email-masked]>
> > Link: https://lore.kernel.org/r/20210511200110.c3f1d42c6746.I795593fcaae941c471425b8c7d5f7bb185d29142@changeid
> > Signed-off-by: Johannes Berg <[email-masked]>
> > Signed-off-by: Ashwin Dayanand Kamat <[email-masked]>
> > ---
> >  drivers/net/wireless/ath/ath10k/htt_rx.c | 10 ++++++++++
> >  1 file changed, 10 insertions(+)
> > 
> 
> Now queued up, thanks.

Nope, breaks the build, how did you test this:

  CC [M]  drivers/net/wireless/ath/ath10k/htt_rx.o
drivers/net/wireless/ath/ath10k/htt_rx.c: In function ‘ath10k_htt_rx_h_mpdu’:
drivers/net/wireless/ath/ath10k/htt_rx.c:1649:21: error: ‘frag’ undeclared (first use in this function)
 1649 |                 if (frag && !fill_crypt_header &&
      |                     ^~~~

> greg k-h