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Subject: svn commit: r1750375 - in /apr/apr/branches/1.6.x: ./ poll/unix/z_asio.c
Date: Mon, 27 Jun 2016 16:05:04 -0000
To: commits@apr.apache.org
From: covener@apache.org
Message-Id: <20160627160505.988BA3A027E@svn01-us-west.apache.org>
archived-at: Mon, 27 Jun 2016 16:05:12 -0000

Author: covener
Date: Mon Jun 27 16:05:04 2016
New Revision: 1750375

URL: http://svn.apache.org/viewvc?rev=1750375&view=rev
Log:
Merge r1750374 from trunk:

Fix a case where the cleanup for a pollset w/o the thread-safe flag
would try to zap a random/garbage message queue identifier. In httpd,
this could happen with e.g. mod_cgi's short-lived, non-threadsafe
pollset.


Modified:
    apr/apr/branches/1.6.x/   (props changed)
    apr/apr/branches/1.6.x/poll/unix/z_asio.c   (contents, props changed)

Propchange: apr/apr/branches/1.6.x/
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Mon Jun 27 16:05:04 2016
@@ -1,4 +1,4 @@
 /apr/apr/branches/1.4.x:1003369,1101301
-/apr/apr/trunk:733052,739635,741862,741866-741867,741869,741871,745763-745764,746310,747990,748080,748361,748371,748565,748888,748902,748988,749810,760443,767895,775683,782838,783398,783958,784633,784773,788588,789050,793192-793193,794118,794485,795267,799497,800627,809745,809854,810472,811455,813063,821306,829490,831641,832904,835607,888669,892028,892159,892435,892909,896382,896653,899905,902090,908427,910419,910597,917819,917837-917838,925965,929796,930508,931973,951771,960665,960671,979891,983618,989450,990435,1003338,1044440,1044447,1055657,1072165,1078845,1081462,1081495,1083038,1083242,1084662,1086695,1088023,1089031,1089129,1089438,1099348,1103310,1183683,1183685-1183686,1183688,1183693,1183698,1213382,1235047,1236970,1237078,1237507,1240472,1340286,1340288,1340470,1341193,1341196,1343233,1343243,1367050,1368819,1370494,1372018,1372022,1372093,1372849,1376957,1384764,1389077,1400200,1402868,1405985,1406690,1420106,1420109,1425356,1428809,1438940,1438957-1438959,1442903,144956
 8,1456418,1459994,1460179-1460180,1460241,1460399,1460405,1462738,1462813,1470186,1470348,1475509,1478905,1480067,1481262,1481265,1484271,1487796,1489517,1496407,1502804,1510354,1516261,1523384,1523479,1523484,1523505,1523521,1523604,1523613,1523615,1523844-1523845,1523853,1524014,1524031,1528797,1528809,1529488,1529495,1529515,1529521,1529668,1530786,1530800,1530988,1531554,1531768,1531884,1532022,1533104,1533111,1533979,1535027,1535157,1536744,1538171,1539374,1539389,1539455,1539603,1541054,1541061,1541486,1541655,1541666,1541744,1542601,1542779,1543033,1543056,1548575,1550907,1551650,1551659,1558905,1559382,1559873,1559975,1561040,1561260,1561265,1561321,1561347,1561356,1561361,1561394,1561555,1571894,1575509,1578420,1587045,1587063,1587543,1587545,1588878,1588937,1593611,1593614-1593615,1593680,1594684,1594708,1595549,1597797,1597803,1604590,1604596,1604598,1605104,1610854,1611023,1611107,1611110,1611117,1611120,1611125,1611184,1611193,1611466,1611515,1611517,1625173,1626564,163
 4615,1642159,1648830,1664406,1664447,1664451,1664471,1664769-1664770,1664775,1664904,1664911,1664958,1666341,1666411,1666458,1666611,1667420-1667421,1667423,1667900-1667901,1667903,1667914-1667916,1667962,1669077,1671292,1671329,1671356,1671389,1671513-1671514,1671957,1672354,1672366,1672495,1672575,1675644,1675656,1675668,1676013,1685929,1696140,1696767,1722547,1722557,1726928,1727020,1727160,1727175,1727199,1728957,1732582,1733451,1733594,1733694,1733706,1733708,1733775,1734816,1736552,1738791,1738925
+/apr/apr/trunk:733052,739635,741862,741866-741867,741869,741871,745763-745764,746310,747990,748080,748361,748371,748565,748888,748902,748988,749810,760443,767895,775683,782838,783398,783958,784633,784773,788588,789050,793192-793193,794118,794485,795267,799497,800627,809745,809854,810472,811455,813063,821306,829490,831641,832904,835607,888669,892028,892159,892435,892909,896382,896653,899905,902090,908427,910419,910597,917819,917837-917838,925965,929796,930508,931973,951771,960665,960671,979891,983618,989450,990435,1003338,1044440,1044447,1055657,1072165,1078845,1081462,1081495,1083038,1083242,1084662,1086695,1088023,1089031,1089129,1089438,1099348,1103310,1183683,1183685-1183686,1183688,1183693,1183698,1213382,1235047,1236970,1237078,1237507,1240472,1340286,1340288,1340470,1341193,1341196,1343233,1343243,1367050,1368819,1370494,1372018,1372022,1372093,1372849,1376957,1384764,1389077,1400200,1402868,1405985,1406690,1420106,1420109,1425356,1428809,1438940,1438957-1438959,1442903,144956
 8,1456418,1459994,1460179-1460180,1460241,1460399,1460405,1462738,1462813,1470186,1470348,1475509,1478905,1480067,1481262,1481265,1484271,1487796,1489517,1496407,1502804,1510354,1516261,1523384,1523479,1523484,1523505,1523521,1523604,1523613,1523615,1523844-1523845,1523853,1524014,1524031,1528797,1528809,1529488,1529495,1529515,1529521,1529668,1530786,1530800,1530988,1531554,1531768,1531884,1532022,1533104,1533111,1533979,1535027,1535157,1536744,1538171,1539374,1539389,1539455,1539603,1541054,1541061,1541486,1541655,1541666,1541744,1542601,1542779,1543033,1543056,1548575,1550907,1551650,1551659,1558905,1559382,1559873,1559975,1561040,1561260,1561265,1561321,1561347,1561356,1561361,1561394,1561555,1571894,1575509,1578420,1587045,1587063,1587543,1587545,1588878,1588937,1593611,1593614-1593615,1593680,1594684,1594708,1595549,1597797,1597803,1604590,1604596,1604598,1605104,1610854,1611023,1611107,1611110,1611117,1611120,1611125,1611184,1611193,1611466,1611515,1611517,1625173,1626564,163
 4615,1642159,1648830,1664406,1664447,1664451,1664471,1664769-1664770,1664775,1664904,1664911,1664958,1666341,1666411,1666458,1666611,1667420-1667421,1667423,1667900-1667901,1667903,1667914-1667916,1667962,1669077,1671292,1671329,1671356,1671389,1671513-1671514,1671957,1672354,1672366,1672495,1672575,1675644,1675656,1675668,1676013,1685929,1696140,1696767,1722547,1722557,1726928,1727020,1727160,1727175,1727199,1728957,1732582,1733451,1733594,1733694,1733706,1733708,1733775,1734816,1736552,1738791,1738925,1750374
 /apr/apr/trunk/test/testnames.c:1460405
 /httpd/httpd/trunk:1604590

Modified: apr/apr/branches/1.6.x/poll/unix/z_asio.c
URL: http://svn.apache.org/viewvc/apr/apr/branches/1.6.x/poll/unix/z_asio.c?rev=1750375&r1=1750374&r2=1750375&view=diff
==============================================================================
--- apr/apr/branches/1.6.x/poll/unix/z_asio.c (original)
+++ apr/apr/branches/1.6.x/poll/unix/z_asio.c Mon Jun 27 16:05:04 2016
@@ -247,9 +247,11 @@ static apr_status_t asio_pollset_cleanup
     int rv;
 
     DBG(4, "entered\n");
-    rv = msgctl(pollset->p->msg_q, IPC_RMID, NULL);
+    if (pollset->flags & APR_POLLSET_THREADSAFE) { 
+        rv = msgctl(pollset->p->msg_q, IPC_RMID, NULL);
+        DBG1(4, "asio_pollset_cleanup: msgctl(IPC_RMID) returned %d\n", rv);
+    }
 
-    DBG1(4, "exiting, msgctl(IPC_RMID) returned %d\n", rv);
     return rv;
 }
 
@@ -264,7 +266,7 @@ static apr_status_t asio_pollset_create(
 
     DBG1(2, "entered, flags: %x\n", flags);
 
-    priv = pollset->p = apr_palloc(p, sizeof(*priv));
+    priv = pollset->p = apr_pcalloc(p, sizeof(*priv));
 
     if (flags & APR_POLLSET_THREADSAFE) {
 #if APR_HAS_THREADS

Propchange: apr/apr/branches/1.6.x/poll/unix/z_asio.c
------------------------------------------------------------------------------
--- svn:mergeinfo (original)
+++ svn:mergeinfo Mon Jun 27 16:05:04 2016
@@ -1,4 +1,4 @@
 /apr/apr/branches/1.4.x/poll/unix/z_asio.c:1101301
 /apr/apr/branches/1.5.x/poll/unix/z_asio.c:1101302
-/apr/apr/trunk/poll/unix/z_asio.c:1561356,1646891,1666341
+/apr/apr/trunk/poll/unix/z_asio.c:1561356,1646891,1666341,1750374
 /apr/apr-util/branches/1.4.x/poll/unix/z_asio.c:1211219,1211223