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Set the right variable to NULL when unsetting ipv6_gateway

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We were freeing one and setting a different one to NULL, eventually
leading to a crash when closing the netdev (at container shutdown)
and freeing already-freed memory.

Closes #732

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
This commit is contained in:
Serge Hallyn 2016-01-11 18:25:19 -08:00
parent c7ec3de825
commit ffe344373e
1 changed files with 1 additions and 1 deletions
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2
src/lxc/confile.c
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@ -971,7 +971,7 @@ static int config_network_ipv6_gateway(const char *key, const char *value,
free(netdev->ipv6_gateway);
if (!value || strlen(value) == 0) {
netdev->ipv4_gateway = NULL;
netdev->ipv6_gateway = NULL;
} else if (!strcmp(value, "auto")) {
netdev->ipv6_gateway = NULL;
netdev->ipv6_gateway_auto = true;