diff options
Diffstat (limited to 'package/kernel/mac80211/patches/454-v5.2-brcmfmac-fix-missing-checks-for-kmemdup.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/454-v5.2-brcmfmac-fix-missing-checks-for-kmemdup.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/454-v5.2-brcmfmac-fix-missing-checks-for-kmemdup.patch b/package/kernel/mac80211/patches/454-v5.2-brcmfmac-fix-missing-checks-for-kmemdup.patch new file mode 100644 index 0000000000..2f72b72cc2 --- /dev/null +++ b/package/kernel/mac80211/patches/454-v5.2-brcmfmac-fix-missing-checks-for-kmemdup.patch @@ -0,0 +1,35 @@ +From 46953f97224d56a12ccbe9c6acaa84ca0dab2780 Mon Sep 17 00:00:00 2001 +From: Kangjie Lu <kjlu@umn.edu> +Date: Fri, 15 Mar 2019 12:04:32 -0500 +Subject: [PATCH] brcmfmac: fix missing checks for kmemdup + +In case kmemdup fails, the fix sets conn_info->req_ie_len and +conn_info->resp_ie_len to zero to avoid buffer overflows. + +Signed-off-by: Kangjie Lu <kjlu@umn.edu> +Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com> +Signed-off-by: Kalle Valo <kvalo@codeaurora.org> +--- + drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 4 ++++ + 1 file changed, 4 insertions(+) + +--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c ++++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +@@ -5455,6 +5455,8 @@ static s32 brcmf_get_assoc_ies(struct br + conn_info->req_ie = + kmemdup(cfg->extra_buf, conn_info->req_ie_len, + GFP_KERNEL); ++ if (!conn_info->req_ie) ++ conn_info->req_ie_len = 0; + } else { + conn_info->req_ie_len = 0; + conn_info->req_ie = NULL; +@@ -5471,6 +5473,8 @@ static s32 brcmf_get_assoc_ies(struct br + conn_info->resp_ie = + kmemdup(cfg->extra_buf, conn_info->resp_ie_len, + GFP_KERNEL); ++ if (!conn_info->resp_ie) ++ conn_info->resp_ie_len = 0; + } else { + conn_info->resp_ie_len = 0; + conn_info->resp_ie = NULL; |