* [2.27] libanl: properly cleanup if first helper thread creation failed (bug 22927)
@ 2018-01-01 0:00 Florian Weimer
0 siblings, 0 replies; only message in thread
From: Florian Weimer @ 2018-01-01 0:00 UTC (permalink / raw)
To: libc-stable
From: Andreas Schwab <schwab@suse.de>
(cherry picked from commit bd3b0fbae33a9a4cc5e2daf049443d5cf03d4251)
2018-11-05 Andreas Schwab <schwab@suse.de>
[BZ #22927]
* resolv/gai_misc.c (__gai_enqueue_request): Don't crash if
creating the first helper thread failed.
diff --git a/NEWS b/NEWS
index c1102a152f..5fef60bc0f 100644
--- a/NEWS
+++ b/NEWS
@@ -65,6 +65,7 @@ The following bugs are resolved with this release:
[22918] multiple common of `__nss_shadow_database'
[22919] sparc32: backtrace yields infinite backtrace with makecontext
[22926] FTBFS on powerpcspe
+ [22927] libanl: properly cleanup if first helper thread creation failed
[22932] lt_LT: Update of abbreviated month names from CLDR required
[22937] Greek (el_GR, el_CY) locales actually need ab_alt_mon
[22947] FAIL: misc/tst-preadvwritev2
diff --git a/resolv/gai_misc.c b/resolv/gai_misc.c
index e7c3b63cc5..80a2cff835 100644
--- a/resolv/gai_misc.c
+++ b/resolv/gai_misc.c
@@ -261,8 +261,11 @@ __gai_enqueue_request (struct gaicb *gaicbp)
/* We cannot create a thread in the moment and there is
also no thread running. This is a problem. `errno' is
set to EAGAIN if this is only a temporary problem. */
- assert (lastp->next == newp);
- lastp->next = NULL;
+ assert (requests == newp || lastp->next == newp);
+ if (lastp != NULL)
+ lastp->next = NULL;
+ else
+ requests = NULL;
requests_tail = lastp;
newp->next = freelist;
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2018-01-01 0:00 [2.27] libanl: properly cleanup if first helper thread creation failed (bug 22927) Florian Weimer
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