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(parent: 3067bc6) | patch
net: hsr: Fix potential use-after-free
authorYueHaibing <yuehaibing@huawei.com>
Fri, 25 Nov 2022 07:57:24 +0000 (15:57 +0800)
committerJakub Kicinski <kuba@kernel.org>
Tue, 29 Nov 2022 02:09:00 +0000 (18:09 -0800)
commit7e177d32442b7ed08a9fa61b61724abc548cb248
tree66c082d234a0016ae7e5713ed713d62b22e49d21tree | snapshot
parent3067bc61fcfe3081bf4807ce65560f499e895e77commit | diff
net: hsr: Fix potential use-after-free

The skb is delivered to netif_rx() which may free it, after calling this,
dereferencing skb may trigger use-after-free.

Fixes: f421436a591d ("net/hsr: Add support for the High-availability Seamless Redundancy protocol (HSRv0)")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20221125075724.27912-1-yuehaibing@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
net/hsr/hsr_forward.c diff | blob | history
Domain: System / Kernel;