diff options
Diffstat (limited to 'package/kernel/mac80211/patches/ath10k/301-ath10k-drop-fragments-with-multicast-DA-for-PCIe.patch')
| -rw-r--r-- | package/kernel/mac80211/patches/ath10k/301-ath10k-drop-fragments-with-multicast-DA-for-PCIe.patch | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/package/kernel/mac80211/patches/ath10k/301-ath10k-drop-fragments-with-multicast-DA-for-PCIe.patch b/package/kernel/mac80211/patches/ath10k/301-ath10k-drop-fragments-with-multicast-DA-for-PCIe.patch deleted file mode 100644 index 7288c66612..0000000000 --- a/package/kernel/mac80211/patches/ath10k/301-ath10k-drop-fragments-with-multicast-DA-for-PCIe.patch +++ /dev/null @@ -1,66 +0,0 @@ -From: Wen Gong <wgong@codeaurora.org> -Date: Tue, 11 May 2021 20:02:53 +0200 -Subject: [PATCH] ath10k: drop fragments with multicast DA for PCIe - -Fragmentation is not used with multicast frames. Discard unexpected -fragments with multicast DA. This fixes CVE-2020-26145. - -Tested-on: QCA6174 hw3.2 PCI WLAN.RM.4.4.1-00110-QCARMSWP-1 - -Cc: stable@vger.kernel.org -Signed-off-by: Wen Gong <wgong@codeaurora.org> -Signed-off-by: Jouni Malinen <jouni@codeaurora.org> -Signed-off-by: Johannes Berg <johannes.berg@intel.com> ---- - ---- a/drivers/net/wireless/ath/ath10k/htt_rx.c -+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c -@@ -1768,6 +1768,16 @@ static u64 ath10k_htt_rx_h_get_pn(struct - return pn; - } - -+static bool ath10k_htt_rx_h_frag_multicast_check(struct ath10k *ar, -+ struct sk_buff *skb, -+ u16 offset) -+{ -+ struct ieee80211_hdr *hdr; -+ -+ hdr = (struct ieee80211_hdr *)(skb->data + offset); -+ return !is_multicast_ether_addr(hdr->addr1); -+} -+ - static bool ath10k_htt_rx_h_frag_pn_check(struct ath10k *ar, - struct sk_buff *skb, - u16 peer_id, -@@ -1839,7 +1849,7 @@ static void ath10k_htt_rx_h_mpdu(struct - bool is_decrypted; - bool is_mgmt; - u32 attention; -- bool frag_pn_check = true; -+ bool frag_pn_check = true, multicast_check = true; - - if (skb_queue_empty(amsdu)) - return; -@@ -1946,13 +1956,20 @@ static void ath10k_htt_rx_h_mpdu(struct - 0, - enctype); - -- if (!frag_pn_check) { -- /* Discard the fragment with invalid PN */ -+ if (frag) -+ multicast_check = ath10k_htt_rx_h_frag_multicast_check(ar, -+ msdu, -+ 0); -+ -+ if (!frag_pn_check || !multicast_check) { -+ /* Discard the fragment with invalid PN or multicast DA -+ */ - temp = msdu->prev; - __skb_unlink(msdu, amsdu); - dev_kfree_skb_any(msdu); - msdu = temp; - frag_pn_check = true; -+ multicast_check = true; - continue; - } - |