GNU C Library master sources branch release/2.27/master updated. glibc-2.27-87-g1050634

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Tue Nov 6 17:10:00 GMT 2018


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- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=1050634904b77d8563ffb1e7039095155ed466ef

commit 1050634904b77d8563ffb1e7039095155ed466ef
Author: Andreas Schwab <schwab@suse.de>
Date:   Tue Nov 6 17:11:25 2018 +0100

    libanl: properly cleanup if first helper thread creation failed (bug 22927)
    
    (cherry picked from commit bd3b0fbae33a9a4cc5e2daf049443d5cf03d4251)

diff --git a/ChangeLog b/ChangeLog
index 6ee2255..607e95c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+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.
+
 2018-10-23  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 
 	[BZ #23709]
diff --git a/NEWS b/NEWS
index c1102a1..5fef60b 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 e7c3b63..80a2cff 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;

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog         |    6 ++++++
 NEWS              |    1 +
 resolv/gai_misc.c |    7 +++++--
 3 files changed, 12 insertions(+), 2 deletions(-)


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