[PATCH v1] nscd: Fix double free in netgroupcache [BZ #27462]

[Siddhesh Poyarekar]

On 2/26/21 2:43 AM, DJ Delorie via Libc-alpha wrote:
> 
> In commit 745664bd798ec8fd50438605948eea594179fba1 a use-after-free
> was fixed, but this led to an occasional double-free.  This patch
> tracks the "live" allocation better.
> 
> Tested manually by a third party.
> 
> Related: RHBZ 1927877

Looks fine to me.  Now that we have container testing, we should add 
tests for nscd, especially since nscd doesn't seem to be going anywhere.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>

Siddhesh