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wifi: mac80211: drop invalid source address OCB frames

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[ Upstream commit d1b1a5eb27c4948e8811cf4dbb05aaf3eb10700c ]

In OCB, don't accept frames from invalid source addresses
(and in particular don't try to create stations for them),
drop the frames instead.

Reported-by: [email protected]
Closes: https://lore.kernel.org/r/[email protected]/
Signed-off-by: Johannes Berg <[email protected]>
Tested-by: [email protected]
Link: https://patch.msgid.link/20250616171838.7433379cab5d.I47444d63c72a0bd58d2e2b67bb99e1fea37eec6f@changeid
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
This commit is contained in:
Johannes Berg 2025-06-16 17:18:38 +02:00 • committed by Greg Kroah-Hartman
commit 48293b9cde
1 changed files with 4 additions and 0 deletions
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4
net/mac80211/rx.c
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@ -3982,6 +3982,10 @@ static bool ieee80211_accept_frame(struct ieee80211_rx_data *rx)
if (!multicast &&
!ether_addr_equal(sdata->dev->dev_addr, hdr->addr1))
return false;
/* reject invalid/our STA address */
if (!is_valid_ether_addr(hdr->addr2) ||
ether_addr_equal(sdata->dev->dev_addr, hdr->addr2))
return false;
if (!rx->sta) {
int rate_idx;
if (status->encoding != RX_ENC_LEGACY)