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(parent: 5cc5658) | patch
mt76: fix array overflow on receiving too many fragments for a packet
authorFelix Fietkau <nbd@nbd.name>
Thu, 20 Feb 2020 11:41:39 +0000 (12:41 +0100)
committerKalle Valo <kvalo@codeaurora.org>
Tue, 3 Mar 2020 15:30:25 +0000 (17:30 +0200)
commitb28a74870a2cd4c9ae7981bf8612b46a02d96686
tree7241c52d1e25587c46fe14df15ee207c0c11eeaftree | snapshot
parent5cc5658322762863caf0bae016d33c1f66a59361commit | diff
mt76: fix array overflow on receiving too many fragments for a packet

If the hardware receives an oversized packet with too many rx fragments,
skb_shinfo(skb)->frags can overflow and corrupt memory of adjacent pages.
This becomes especially visible if it corrupts the freelist pointer of
a slab page.

Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
drivers/net/wireless/mediatek/mt76/dma.c diff | blob | history
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