Please help
"Shaji, Sreeja (GE Vernova, consultant)" <[email protected]> Mon, 7 Oct 2024 11:05:04 +0000
| Newsgroups | gmane.network.net-snmp.devel |
|---|---|
| Message-ID | <PAWP101MB05824D4F681387C3AC0B4494EA7D2@PAWP101MB0582.NAMP101.PROD.OUTLOOK.COM> |
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Hi,
Please help us for an issue observing in our application.
SNMP version using : net-snmp-5.9.4
OpenSSL version : openssl-3.0.13
Our application supports
* SNMP polling for version 1 , 2c and 3 and encryption SHA, MD5, AES, D=
ES,
* SNMP traps
We are using more than 60 + devices to get the SNMP information. We use con=
tinuous device polling via threads.
Now we found memory leaks in the application while using SNMP v3 version. N=
o issues found in SNMP v2 version.
The issues found in snmp_sess_synch_response with v3 version only.
When we use all other code except this line, no leak found. When we include=
this function with v3 issue coming.
Please find the usage below,
snmp_sess_init(&session);
ss =3D snmp_sess_open(&session);
Setting v3 parameters
{
}
/*pdu create/*
snmp_pdu_create
snmp_sess_synch_response(ss, pdu, &response);
/* data parsing /*
if (response)
{
snmp_free_pdu(response);
}
//freed V3 and other configuration memory
free(session.peername); session.peername=3D NULL;
free(session.securityName); session.peername=3D NULL;
snmp_sess_close(ss);
Please let us know any memory leak bug reported for V3 in openssl or net sn=
mp side and any patch or fix is available?
Please reply ASAP it is Very CRITICAL
Thanks
Sreeja Shaji
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<p class=3D"MsoNormal">Hi,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Please help us for an issue observing in our applica=
tion.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">SNMP version using : net-snmp-5.9.4<o:p></o:p>=
</p>
<p class=3D"MsoNormal">OpenSSL version : openssl-3.0.13<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Our application supports <o:p></o:p></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l0 level1 =
lfo1">SNMP polling for version 1 , 2c and 3 and encryption SHA, MD5, AES, D=
ES,
<o:p></o:p></li><li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso=
-list:l0 level1 lfo1">SNMP traps
<o:p></o:p></li></ul>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">We are using more than 60 + devices to get the SNMP =
information. We use continuous device polling via threads.<o:p></o:p></p>
<p class=3D"MsoNormal">Now we found memory leaks in the application while u=
sing SNMP v3 version. No issues found in SNMP v2 version.
<o:p></o:p></p>
<p class=3D"MsoNormal">The issues found in <span style=3D"font-size:9.5pt;f=
ont-family:"Cascadia Mono";color:black">
snmp_sess_synch_response </span>with v3 version only.<span style=3D"font-si=
ze:9.5pt;font-family:"Cascadia Mono";color:black"><o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal">When we use all other code except this line, no leak=
found. When we include this function with v3 issue coming.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">Please find the usage below,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black">snmp_sess_init(&session);<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black">ss =3D snmp_sess_open(&session);<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black">Setting v3 parameters<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black">{<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black">}</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black">/*<b>pdu create/</b>*<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black">snmp_pdu_create<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black">snmp_sess_synch_response(ss, pdu, &respon=
se);<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black">/* data parsing /*<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:9.5pt;font-family:"Cascadia Mono";color:blue">if</span><span s=
tyle=3D"font-size:9.5pt;font-family:"Cascadia Mono";color:black">=
(response)<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:9.5pt;font-family:"Cascadia Mono";color:black">{<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal" style=3D"text-autospace:none"><span style=3D"font-si=
ze:9.5pt;font-family:"Cascadia Mono";color:black"> &nb=
sp; snmp_free_pdu(response);<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black">}<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black">//freed V3 and other configuration memory<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black">free(session.peername); session.peername=3D N=
ULL;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black">free(session.securityName); session.peername=
=3D NULL;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black">snmp_sess_close(ss);<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black"><o:p> </o:p></span></p>
<p class=3D"MsoNormal">Please let us know any memory leak bug reported for =
V3 in openssl or net snmp side and any patch or fix is available?<o:p></o:p=
></p>
<p class=3D"MsoNormal"><b><span style=3D"color:red">Please reply ASAP it is=
Very CRITICAL<o:p></o:p></span></b></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black">Thanks<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:9.5pt;font-family:"Cas=
cadia Mono";color:black">Sreeja Shaji<o:p></o:p></span></p>
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