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ch: Free retval of curl_slist_append()

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There are two places where curl_slist_append() is called but
corresponding call to curl_slist_free_all() is missing:
virCHMonitorPutNoContent() and virCHMonitorGet() which leads to
memleaks:

41 (16 direct, 25 indirect) bytes in 1 blocks are definitely lost in loss record 992 of 1,998
   at 0x4845888: malloc (vg_replace_malloc.c:446)
   by 0x5B2F8FE: curl_slist_append (in /usr/lib64/libcurl.so.4.8.0)
   by 0xB3A7B41: virCHMonitorPutNoContent (ch_monitor.c:824)
   by 0xB3A89FF: virCHMonitorBootVM (ch_monitor.c:1030)
   by 0xB3AC6F1: virCHProcessStart (ch_process.c:967)
   by 0xB39B7D4: chDomainCreateXML (ch_driver.c:246)
   by 0x4CC9D32: virDomainCreateXML (libvirt-domain.c:188)
   by 0x168F91: remoteDispatchDomainCreateXML (remote_daemon_dispatch_stubs.h:5186)
   by 0x168F18: remoteDispatchDomainCreateXMLHelper (remote_daemon_dispatch_stubs.h:5167)
   by 0x4B20066: virNetServerProgramDispatchCall (virnetserverprogram.c:423)
   by 0x4B1FB99: virNetServerProgramDispatch (virnetserverprogram.c:299)
   by 0x4B28B5E: virNetServerProcessMsg (virnetserver.c:135)

88 (16 direct, 72 indirect) bytes in 1 blocks are definitely lost in loss record 1,501 of 1,998
   at 0x4845888: malloc (vg_replace_malloc.c:446)
   by 0x5B2F8FE: curl_slist_append (in /usr/lib64/libcurl.so.4.8.0)
   by 0xB3A7E41: virCHMonitorGet (ch_monitor.c:864)
   by 0xB3A92E2: virCHMonitorGetInfo (ch_monitor.c:1157)
   by 0xB3A9CEA: virCHProcessUpdateInfo (ch_process.c:142)
   by 0xB3AAD36: virCHProcessSetup (ch_process.c:492)
   by 0xB3AC75A: virCHProcessStart (ch_process.c:973)
   by 0xB39B7D4: chDomainCreateXML (ch_driver.c:246)
   by 0x4CC9D32: virDomainCreateXML (libvirt-domain.c:188)
   by 0x168F91: remoteDispatchDomainCreateXML (remote_daemon_dispatch_stubs.h:5186)
   by 0x168F18: remoteDispatchDomainCreateXMLHelper (remote_daemon_dispatch_stubs.h:5167)
   by 0x4B20066: virNetServerProgramDispatchCall (virnetserverprogram.c:423)

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
This commit is contained in:
Michal Privoznik 2025-03-13 13:01:44 +01:00
parent 8701ba4feb
commit 9da8db464a
1 changed files with 3 additions and 0 deletions
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3
src/ch/ch_monitor.c
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@ -839,6 +839,8 @@ virCHMonitorPutNoContent(virCHMonitor *mon, const char *endpoint,
if (responseCode == 200 || responseCode == 204)
ret = 0;
curl_slist_free_all(headers);
return ret;
}
@ -884,6 +886,7 @@ virCHMonitorGet(virCHMonitor *mon, const char *endpoint, virJSONValue **response
cleanup:
g_free(data.content);
curl_slist_free_all(headers);
/* reset the libcurl handle to avoid leaking a stack pointer to data */
curl_easy_reset(mon->handle);