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fou: fix initialization of grc

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[ Upstream commit 4c8002277167125078e6b9b90137bdf443ebaa08 ]

The grc must be initialize first. There can be a condition where if
fou is NULL, goto out will be executed and grc would be used
uninitialized.

Fixes: 7e4196935069 ("fou: Fix null-ptr-deref in GRO.")
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20240906102839.202798-1-usama.anjum@collabora.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Muhammad Usama Anjum
2024-09-06 15:28:39 +05:00
committed by Greg Kroah-Hartman
parent 65feee671e
commit 7ae890ee19
1 changed files with 2 additions and 2 deletions
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4
net/ipv4/fou_core.c
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@@ -336,11 +336,11 @@ static struct sk_buff *gue_gro_receive(struct sock *sk,
struct gro_remcsum grc;
u8 proto;
skb_gro_remcsum_init(&grc);
if (!fou)
goto out;
skb_gro_remcsum_init(&grc);
off = skb_gro_offset(skb);
len = off + sizeof(*guehdr);