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* jtag3.c (jtag3_initialize): Fix a buffer overflow by limiting

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the flash page cache size to at most "readsize".  For Xmegas with
a page size of 512 bytes, the maximum USB packet size was
overflowed, and subsequently, a memmove copied beyond the end of
the allocated buffer.
* jtag3.c (jtag3_read_byte): Add the correct offset also for the
various flash regions, so reading the apptable or boot regions
yields the correct data.



git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1237 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Joerg Wunsch
2013-09-17 15:06:35 +00:00
parent c6e9e34e98
commit e59b190654
2 changed files with 20 additions and 2 deletions
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@@ -1,3 +1,14 @@
2013-09-17 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
* jtag3.c (jtag3_initialize): Fix a buffer overflow by limiting
the flash page cache size to at most "readsize". For Xmegas with
a page size of 512 bytes, the maximum USB packet size was
overflowed, and subsequently, a memmove copied beyond the end of
the allocated buffer.
* jtag3.c (jtag3_read_byte): Add the correct offset also for the
various flash regions, so reading the apptable or boot regions
yields the correct data.
2013-09-16 Joerg Wunsch <j.gnu@uriah.heep.sax.de>
Submitted by Joakim Lubeck: