tablet/grub
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net/net: Fix uninitialized scalar variable

Browse Source 
In the function grub_net_ipv6_get_link_local(), grub_net_network_level_address_t
addr is called but isn't being initialized. This results in the member
grub_dns_option_t option being filled with junk data from the stack. We can
prevent this by setting the option member in addr to 0.

Fixes: CID 375033

Signed-off-by: Alec Brown <alec.r.brown@oracle.com>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Alec Brown 2022-03-21 02:29:00 -04:00 committed by Daniel Kiper
parent 23c3cbe1db
commit 8e9e0d4643
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
grub-core/net/net.c
View File

@ -292,6 +292,7 @@ grub_net_ipv6_get_link_local (struct grub_net_card *card,
addr.type = GRUB_NET_NETWORK_LEVEL_PROTOCOL_IPV6;
addr.ipv6[0] = grub_cpu_to_be64_compile_time (0xfe80ULL << 48);
addr.ipv6[1] = grub_net_ipv6_get_id (hwaddr);
addr.option = 0;
FOR_NET_NETWORK_LEVEL_INTERFACES (inf)
{