Re: [PATCH] netlink: Allow NULL to be passed as addr parameter to nl_addr_get (again)

On Wed, 11 Mar 2026 15:13:57 +1100 David Gibson wrote:

A recent fix to nl_addr_get() unfortunately introduced a different problem. 251e676bd0bf removed a test if @addr was non-NULL. conf_ip6() relied on being able to pass NULL in order to update the link-local address without updating the main address (because it was already set by the user).

This means that 'pasta -a 2001:db8::1' will SEGV. Reverse the incorrect part of the change to fix this.

Ouch, sorry. I totally misinterpreted the check on 'addr' (my own check, by the way) and suggested to Jon that it could be skipped.

Fixes: 251e676bd0bf ("netlink: Return prefix length for IPv6 addresses in nl_addr_get()") Signed-off-by: David Gibson

Applied. -- Stefano