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<p class="MsoNormal"><span lang="EN-US">Hi </span><span lang="EN-US" style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;background:white">Rthomaiy</span><span lang="EN-US">,
</span><span lang="EN-US" style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;background:white"> Vmauery</span><span lang="EN-US">,
</span><span lang="EN-US" style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;background:white"> Pstrinkle</span><span lang="EN-US">,
</span><span lang="EN-US" style="font-size:10.5pt;font-family:"Segoe UI",sans-serif;background:white">Jayaprakashmutyala</span><span lang="EN-US">,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">When I build phosphor-host-ipmid for aarch64 platform, size_t will be 8 bytes, but in aarch32 sizte_t will be 4 bytes, so ipmid will crash at
<a href="https://github.com/openbmc/phosphor-host-ipmid/blob/master/user_channel/passwd_mgr.cpp#L323">
https://github.com/openbmc/phosphor-host-ipmid/blob/master/user_channel/passwd_mgr.cpp#L323</a>, due to the data size of hashsize and ivsize and padsize and macsize is 4 bytes in
</span><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#032F62;background:white">/etc/ipmi_pass</span><span lang="EN-US">, but ipmid will read those data as 8 bytes.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:15.0pt"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E">/*<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:15.0pt"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E">* Meta data struct for encrypted password file<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:15.0pt"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E">struct MetaPassStruct<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:15.0pt"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E">{<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:15.0pt"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E"> char signature[10];<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:15.0pt"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E"> unsigned char reseved[2];<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:15.0pt"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E"> size_t hashSize;<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:15.0pt"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E"> size_t ivSize;<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:15.0pt"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E"> size_t dataSize;<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:15.0pt"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E"> size_t padSize;<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:15.0pt"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E"> size_t macSize;<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:15.0pt"><span lang="EN-US" style="font-size:9.0pt;font-family:Consolas;color:#24292E">};<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">If I replace size_t in this structure with unsigned int, then ipmid will not crash at this point.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">But those fields in this structure are also used to store the return value from other functions, like EVP_MD_block_size(),<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">And the return type is also size_t.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Do you have any idea about this issue?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Maybe we could just discard the Most Significant 4 Bytes? (I guess these 4 bytes are not used)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">B.R.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Medad<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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