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27 lines
930 B
27 lines
930 B
4 years ago
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Andrei Borzenkov <arvidjaar@gmail.com>
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Date: Sun, 20 Mar 2016 10:32:33 +0300
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Subject: [PATCH] bootp: check that interface is not NULL in
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configure_by_dhcp_ack
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grub_net_add_addr may fail with OOM and we use returned interface
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later without any checks.
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---
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grub-core/net/bootp.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/grub-core/net/bootp.c b/grub-core/net/bootp.c
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index 62d602d9645..7df7f55110e 100644
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--- a/grub-core/net/bootp.c
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+++ b/grub-core/net/bootp.c
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@@ -237,6 +237,9 @@ grub_net_configure_by_dhcp_ack (const char *name,
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hwaddr.type = GRUB_NET_LINK_LEVEL_PROTOCOL_ETHERNET;
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inter = grub_net_add_addr (name, card, &addr, &hwaddr, flags);
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+ if (!inter)
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+ return 0;
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+
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#if 0
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/* This is likely based on misunderstanding. gateway_ip refers to
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address of BOOTP relay and should not be used after BOOTP transaction
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