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(parent: a3a57bf) | patch
net: lantiq_xrx200: confirm skb is allocated before using
authorAleksander Jan Bajkowski <olek2@wp.pl>
Wed, 24 Aug 2022 21:54:06 +0000 (23:54 +0200)
committerJakub Kicinski <kuba@kernel.org>
Thu, 25 Aug 2022 19:41:38 +0000 (12:41 -0700)
commitc8b043702dc0894c07721c5b019096cebc8c798f
tree8c74a7e4a530a6e81e78362a455922335c4f30f1tree | snapshot
parenta3a57bf07de23fe1ff779e0fdf710aa581c3ff73commit | diff
net: lantiq_xrx200: confirm skb is allocated before using

xrx200_hw_receive() assumes build_skb() always works and goes straight
to skb_reserve(). However, build_skb() can fail under memory pressure.

Add a check in case build_skb() failed to allocate and return NULL.

Fixes: e015593573b3 ("net: lantiq_xrx200: convert to build_skb")
Reported-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
drivers/net/ethernet/lantiq_xrx200.c diff | blob | history
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