- Description has changed:
Diff:
~~~~
--- old
+++ new
@@ -1,4 +1,3 @@
-
This in the TCP flow of MDS
In the process of code walk in the context of debugging some application
segfault, we fund on bug , USRBUF contiguous memory ( non-stranded-path system
has vey less memory) case of fragment and send function.
~~~~
- **status**: review --> fixed
- **Comment**:
changeset: 6280:e27a46e7bcf7
branch: opensaf-4.4.x
parent: 6270:66eff67a68ca
user: A V Mahesh <[email protected]>
date: Mon Feb 23 10:43:48 2015 +0530
summary: mds/tcp: correct memcopy size of contiguous USRBUF in fragment
send [#1247]
changeset: 6279:9c24654a048c
branch: opensaf-4.5.x
parent: 6271:97ba738c12e5
user: A V Mahesh <[email protected]>
date: Mon Feb 23 10:43:29 2015 +0530
summary: mds/tcp: correct memcopy size of contiguous USRBUF in fragment
send [#1247]
changeset: 6278:6fce16cb0539
user: A V Mahesh <[email protected]>
date: Mon Feb 23 10:43:02 2015 +0530
summary: mds/tcp: correct memcopy size of contiguous USRBUF in fragment
send [#1247]
---
** [tickets:#1247] mds/TCP: wrong size memcpy if USRBUF chain(payload) are
contiguous memory**
**Status:** fixed
**Milestone:** 4.6.FC
**Created:** Tue Jan 27, 2015 04:30 AM UTC by A V Mahesh (AVM)
**Last Updated:** Mon Feb 09, 2015 04:09 AM UTC
**Owner:** A V Mahesh (AVM)
This in the TCP flow of MDS
In the process of code walk in the context of debugging some application
segfault, we fund on bug , USRBUF contiguous memory ( non-stranded-path system
has vey less memory) case of fragment and send function.
If USRBUF chain(payload) are contiguous MMGR_DATA_AT_START doesn't copy the
buffer , application need to copy the buffer, in that memcpy() the size was
wrong/overflowing.
This need to be corrected as follws
@@ -2246,7 +2246,7 @@ uint32_t mdtm_frag_and_send(MDTM_SEND_RE
memcpy(&body[SUM_MDS_HDR_PLUS_MDTM_HDR_PLUS_LEN], p8, len_buf);
memcpy(&body[SUM_MDS_HDR_PLUS_MDTM_HDR_PLUS_LEN], p8, (len_buf -
SUM_MDS_HDR_PLUS_MDTM_HDR_PLUS_LEN));
---
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