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authorFlorian Weimer <fweimer@redhat.com>2017-08-10 09:10:36 +0200
committerFlorian Weimer <fweimer@redhat.com>2017-08-10 09:10:36 +0200
commit302434688d925134065498b4a5574f6ee6bfb9fd (patch)
treed7d539b690bee52c359a6423f46140e3b4b31873
parent82efa1ffd43bed1494d20a4b86f6b15ac6bb5545 (diff)
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nss: Call __resolv_context_put before early return in get*_r [BZ #21932]
This corrects an oversight introduced in commit
352f4ff9a268b81ef5d4b2413f582565806e4790 (resolv: Introduce struct
resolv_context).

(cherry picked from commit 3016149819268b14660f791b971910ccc2cc13e5)
-rw-r--r--ChangeLog6
-rw-r--r--NEWS1
-rw-r--r--nss/getXXbyYY_r.c10
3 files changed, 16 insertions, 1 deletions
diff --git a/ChangeLog b/ChangeLog
index 459062cc20..3127648626 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2017-08-09  Florian Weimer  <fweimer@redhat.com>
+
+	[BZ #21932]
+	* nss/getXXbyYY_r.c (REENTRANT_NAME): Call __resolv_context_put
+	before early return.
+
 2017-08-09  Adhemerval Zanella  <adhemerval.zanella@linaro.org>
 
 	[BZ #21780]
diff --git a/NEWS b/NEWS
index 9a64579658..ec6cf34122 100644
--- a/NEWS
+++ b/NEWS
@@ -10,6 +10,7 @@ Version 2.26.1
 The following bugs are resolved with this release:
 
   [21885] getaddrinfo: Release resolver context on error in gethosts
+  [21932] Unpaired __resolv_context_get in generic get*_r implementation
 
 Version 2.26
 
diff --git a/nss/getXXbyYY_r.c b/nss/getXXbyYY_r.c
index 6c547ea1ca..bce80e05dd 100644
--- a/nss/getXXbyYY_r.c
+++ b/nss/getXXbyYY_r.c
@@ -234,6 +234,9 @@ INTERNAL (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer,
 				      H_ERRNO_VAR_P))
     {
     case -1:
+# ifdef NEED__RES
+      __resolv_context_put (res_ctx);
+# endif
       return errno;
     case 1:
 #ifdef NEED_H_ERRNO
@@ -253,7 +256,12 @@ INTERNAL (REENTRANT_NAME) (ADD_PARAMS, LOOKUP_TYPE *resbuf, char *buffer,
       nscd_status = NSCD_NAME (ADD_VARIABLES, resbuf, buffer, buflen, result
 			       H_ERRNO_VAR);
       if (nscd_status >= 0)
-	return nscd_status;
+	{
+# ifdef NEED__RES
+	  __resolv_context_put (res_ctx);
+# endif
+	  return nscd_status;
+	}
     }
 #endif