Fix "net" command on kernel configured with CONFIG_IPV6=m

On a kernel configured with CONFIG_IPV6=m, struct inet6_ifaddr is not defined in kernel. Without the patch, the "net" command fails with the following error. net: invalid structure member offset: inet6_ifaddr_if_next FILE: net.c LINE: 1017 FUNCTION: get_device_ip6_address() Signed-off-by: Lianbo Jiang <[email protected]> Signed-off-by: Kazuhito Hagio <[email protected]>
crash-utility · Apr 25, 2023 · 4721643 · 4721643
1 parent 2c7310a
commit 4721643
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/net.c b/net.c
@@ -996,6 +996,9 @@ get_device_ip6_address(ulong devaddr, char **bufp, long buflen)
 		return;
 	}
 
+	if (INVALID_MEMBER(inet6_ifaddr_if_next))
+		return;
+
 	readmem(ip6_ptr + OFFSET(inet6_dev_addr_list), KVADDR,
 		&addr, sizeof(void *), "inet6_dev.addr_list", FAULT_ON_ERROR);