39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
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From 8e9e0d4643020b340839b7f428f7b9ca6a2129d8 Mon Sep 17 00:00:00 2001
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From: Alec Brown <alec.r.brown@oracle.com>
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Date: Mon, 21 Mar 2022 02:29:00 -0400
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Subject: net/net: Fix uninitialized scalar variable
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In the function grub_net_ipv6_get_link_local(), grub_net_network_level_address_t
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addr is called but isn't being initialized. This results in the member
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grub_dns_option_t option being filled with junk data from the stack. We can
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prevent this by setting the option member in addr to 0.
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Fixes: CID 375033
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Signed-off-by: Alec Brown <alec.r.brown@oracle.com>
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Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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Conflict:NA
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Reference:https://git.savannah.gnu.org/cgit/grub.git/commit?id=8e9e0d4643020b340839b7f428f7b9ca6a2129d8
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---
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grub-core/net/net.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/grub-core/net/net.c b/grub-core/net/net.c
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index 11b3987..681f914 100644
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--- a/grub-core/net/net.c
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+++ b/grub-core/net/net.c
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@@ -292,6 +292,7 @@ grub_net_ipv6_get_link_local (struct grub_net_card *card,
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addr.type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6;
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addr.ipv6[0] = grub_cpu_to_be64_compile_time (0xfe80ULL << 48);
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addr.ipv6[1] = grub_net_ipv6_get_id (hwaddr);
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+ addr.option = 0;
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FOR_NET_NETWORK_LEVEL_INTERFACES (inf)
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{
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--
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cgit v1.1
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