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xfrm: Fix return value check of copy_sec_ctx.

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A recent commit added an output_mark. When copying
this output_mark, the return value of copy_sec_ctx
is overwitten without a check. Fix this by copying
the output_mark before the security context.

Fixes: 077fbac405 ("net: xfrm: support setting an output mark.")
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Steffen Klassert 2017-08-31 10:37:00 +02:00
parent 47ebcc0bb1
commit 8598112d04
1 changed files with 2 additions and 2 deletions
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4
net/xfrm/xfrm_user.c
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@ -900,13 +900,13 @@ static int copy_to_user_state_extra(struct xfrm_state *x,
ret = copy_user_offload(&x->xso, skb);
if (ret)
goto out;
if (x->security)
ret = copy_sec_ctx(x->security, skb);
if (x->props.output_mark) {
ret = nla_put_u32(skb, XFRMA_OUTPUT_MARK, x->props.output_mark);
if (ret)
goto out;
}
if (x->security)
ret = copy_sec_ctx(x->security, skb);
out:
return ret;
}