When getting a screenshot of a domain via virDomainScreenshot() the MIME type of a image is returned as a string which needs to be freed by caller. However, we are not doing that anywhere. ==24748== 48 bytes in 2 blocks are definitely lost in loss record 123 of 171 ==24748== at 0x4C29F80: malloc (vg_replace_malloc.c:296) ==24748== by 0x90674AB: xdr_string (xdr.c:790) ==24748== by 0xCD3AF1D: xdr_remote_nonnull_string (in /usr/lib64/libvirt.so.0.2003.0) ==24748== by 0x9067B34: xdr_reference (xdr_ref.c:84) ==24748== by 0x9067C50: xdr_pointer (xdr_ref.c:135) ==24748== by 0xCD3B284: xdr_remote_string (in /usr/lib64/libvirt.so.0.2003.0) ==24748== by 0xCD3D288: xdr_remote_domain_screenshot_ret (in /usr/lib64/libvirt.so.0.2003.0) ==24748== by 0xCD5168E: virNetMessageDecodePayload (in /usr/lib64/libvirt.so.0.2003.0) ==24748== by 0xCD47E91: virNetClientProgramCall (in /usr/lib64/libvirt.so.0.2003.0) ==24748== by 0xCD1EBD3: callFull.isra.3 (in /usr/lib64/libvirt.so.0.2003.0) ==24748== by 0xCD29973: remoteDomainScreenshot (in /usr/lib64/libvirt.so.0.2003.0) ==24748== by 0xCCDC24C: virDomainScreenshot (in /usr/lib64/libvirt.so.0.2003.0) Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; --- Pushed under php-autopush rule. src/libvirt-php.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/src/libvirt-php.c b/src/libvirt-php.c index 8edcb10..57ef1a0 100644 --- a/src/libvirt-php.c +++ b/src/libvirt-php.c @@ -4767,8 +4767,10 @@ PHP_FUNCTION(libvirt_domain_get_screenshot_api) } #ifndef EXTWIN - if (mkstemp(file) == 0) + if (mkstemp(file) == 0) { + free(mime); RETURN_FALSE; + } #endif if ((fd = open(file, O_WRONLY|O_CREAT|O_EXCL, 0666)) < 0) { @@ -4776,6 +4778,7 @@ PHP_FUNCTION(libvirt_domain_get_screenshot_api) (fd = open(file, O_WRONLY|O_TRUNC, 0666)) < 0) { virStreamFree(st); set_error_if_unset("Cannot get create file to save domain screenshot" TSRMLS_CC); + free(mime); RETURN_FALSE; } } @@ -4783,6 +4786,7 @@ PHP_FUNCTION(libvirt_domain_get_screenshot_api) if (virStreamRecvAll(st, streamSink, &fd) < 0) { virStreamFree(st); set_error_if_unset("Cannot receive screenshot data" TSRMLS_CC); + free(mime); RETURN_FALSE; } @@ -4791,6 +4795,7 @@ PHP_FUNCTION(libvirt_domain_get_screenshot_api) if (virStreamFinish(st) < 0) { virStreamFree(st); set_error_if_unset("Cannot close stream for domain" TSRMLS_CC); + free(mime); RETURN_FALSE; } @@ -4816,6 +4821,8 @@ PHP_FUNCTION(libvirt_domain_get_screenshot_api) VIRT_ADD_ASSOC_STRING(return_value, "file", file); VIRT_ADD_ASSOC_STRING(return_value, "mime", mime); } + + free(mime); } /* -- 2.8.4