package/kernel/mac80211/patches/brcm/110-v5.6-brcmfmac-Fix-memory-leak-in-brcmf_p2p_create_p2pdev.patch

   1 From 5cc509aa83c6acd2c5cd94f99065c39d2bd0a490 Mon Sep 17 00:00:00 2001
   2 From: Navid Emamdoost <navid.emamdoost@gmail.com>
   3 Date: Fri, 22 Nov 2019 13:19:48 -0600
   4 Subject: [PATCH] brcmfmac: Fix memory leak in brcmf_p2p_create_p2pdev()
   5
   6 In the implementation of brcmf_p2p_create_p2pdev() the allocated memory
   7 for p2p_vif is leaked when the mac address is the same as primary
   8 interface. To fix this, go to error path to release p2p_vif via
   9 brcmf_free_vif().
  10
  11 Fixes: cb746e47837a ("brcmfmac: check p2pdev mac address uniqueness")
  12 Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
  13 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  14 ---
  15  drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c | 3 ++-
  16  1 file changed, 2 insertions(+), 1 deletion(-)
  17
  18 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
  19 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
  20 @@ -2092,7 +2092,8 @@ static struct wireless_dev *brcmf_p2p_cr
  21         /* firmware requires unique mac address for p2pdev interface */
  22         if (addr && ether_addr_equal(addr, pri_ifp->mac_addr)) {
  23                 bphy_err(drvr, "discovery vif must be different from primary interface\n");
  24 -               return ERR_PTR(-EINVAL);
  25 +               err = -EINVAL;
  26 +               goto fail;
  27         }
  28
  29         brcmf_p2p_generate_bss_mac(p2p, addr);