From: Pavel Hrdina <phrdina@redhat.com>
Date: Thu, 11 Apr 2019 15:13:16 +0000 (+0200)
Subject: virresctrl: fix MBA memory leak
X-Git-Tag: v5.3.0-rc1~159
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e3c4befef44db8e45a1f0de857ad2ec58d9b961a;p=thirdparty%2Flibvirt.git

virresctrl: fix MBA memory leak

The 'bandwidths' variable is allocated using VIR_RESIZE_N so it has to
be freed as well.

==118315== 8 bytes in 1 blocks are definitely lost in loss record 299 of 2,401
==118315==    at 0x4C29DAD: malloc (vg_replace_malloc.c:308)
==118315==    by 0x4C2C100: realloc (vg_replace_malloc.c:836)
==118315==    by 0x52C3FAF: virReallocN (viralloc.c:245)
==118315==    by 0x52C4079: virExpandN (viralloc.c:294)
==118315==    by 0x532BBA8: virResctrlAllocParseProcessMemoryBandwidth (virresctrl.c:1156)
==118315==    by 0x532BBA8: virResctrlAllocParseMemoryBandwidthLine (virresctrl.c:1211)
==118315==    by 0x532BBA8: virResctrlAllocParse (virresctrl.c:1414)
==118315==    by 0x532BBA8: virResctrlAllocGetGroup (virresctrl.c:1446)
==118315==    by 0x532C11D: virResctrlAllocGetDefault (virresctrl.c:1464)
==118315==    by 0x532D15E: virResctrlAllocAssign (virresctrl.c:1923)
==118315==    by 0x532D15E: virResctrlAllocCreate (virresctrl.c:2042)
==118315==    by 0x31E1ABEE: qemuProcessResctrlCreate (qemu_process.c:2596)
==118315==    by 0x31E1ABEE: qemuProcessLaunch (qemu_process.c:6444)
==118315==    by 0x31E1E341: qemuProcessStart (qemu_process.c:6721)
==118315==    by 0x31E81315: qemuDomainObjStart.constprop.50 (qemu_driver.c:7288)
==118315==    by 0x31E81A65: qemuDomainCreateWithFlags (qemu_driver.c:7341)
==118315==    by 0x54DDB4B: virDomainCreate (libvirt-domain.c:6534)

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
---

diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c
index ba0fbb574f..b845f366f0 100644
--- a/src/util/virresctrl.c
+++ b/src/util/virresctrl.c
@@ -411,6 +411,7 @@ virResctrlAllocDispose(void *obj)
         virResctrlAllocMemBWPtr mem_bw = alloc->mem_bw;
         for (i = 0; i < mem_bw->nbandwidths; i++)
             VIR_FREE(mem_bw->bandwidths[i]);
+        VIR_FREE(alloc->mem_bw->bandwidths);
         VIR_FREE(alloc->mem_bw);
     }