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net: Check if returned pointer for allocated memory is NULL

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When using grub_malloc(), the function can fail if we are out of memory.
After allocating memory we should check if this function returned NULL
and handle this error if it did.

Signed-off-by: Alec Brown <alec.r.brown@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Alec Brown 2025-01-22 18:04:44 +00:00 committed by Daniel Kiper
parent dee2c14fd6
commit 1c06ec9005
1 changed files with 5 additions and 0 deletions
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5
grub-core/net/net.c
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@ -227,6 +227,11 @@ grub_net_ipv6_get_slaac (struct grub_net_card *card,
}
slaac->name = grub_malloc (sz);
if (slaac->name == NULL)
{
grub_free (slaac);
return NULL;
}
ptr = grub_stpcpy (slaac->name, card->name);
if (grub_net_hwaddr_cmp (&card->default_address, hwaddr) != 0)
{