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https://issues.apache.org/jira/browse/TS-4313?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15235354#comment-15235354
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Masakazu Kitajo commented on TS-4313:
-------------------------------------
Please use these commits if you back port this fix.
cbd094c34d465edbfc637efc10c90da7fe4648f6
4d539c520e8975721e28a59271777342af6329b0
> MIMEHdr fails to find header fields
> -----------------------------------
>
> Key: TS-4313
> URL: https://issues.apache.org/jira/browse/TS-4313
> Project: Traffic Server
> Issue Type: Bug
> Components: MIME
> Reporter: Masakazu Kitajo
> Assignee: Masakazu Kitajo
> Fix For: 6.2.0
>
>
> MIMEHdr fails to find a MIMEField occasionally due to improper type
> conversion.
> It happens if the lower 32 bits of addresses of m_field_slots are the same.
> The logic below picks up wrong block.
> mime_hdr_field_slotnum():
> {code}
> for (fblock = &(mh->m_first_fblock); fblock != NULL; fblock = fblock->m_next)
> {
> MIMEField *first = &(fblock->m_field_slots[0]);
> int block_slot = (int)(field - first); // in units of MIMEField
> if ((block_slot >= 0) && (block_slot < MIME_FIELD_BLOCK_SLOTS))
> {code}
> The type of block_slot should be intptr_t.
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