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https://bugs.freedesktop.org/show_bug.cgi?id=6656
Summary: arbvptest3 segfaults because of bad index to tnl-
>vtx.tabfv
Product: Mesa
Version: CVS
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Mesa core
AssignedTo: mesa3d-dev@lists.sourceforge.net
ReportedBy: [EMAIL PROTECTED]
0x00000000 in ?? ()
(gdb) f 1
#1 0xb7960627 in _tnl_VertexAttrib3fARB (index=19, x=1, y=0.5, z=0.25)
at tnl/t_vtx_generic.c:472
472 tnl->vtx.tabfv[index][3-1]( &z );
(gdb) p index
$1 = 19
_tnl_VertexAttrib3fARB (and other functions in t_vtx_generic.) have the
following code snippet:
if (index >= MAX_VERTEX_ATTRIBS)
index = ERROR_ATTRIB;
else
index += VERT_ATTRIB_GENERIC0;
MAX_VERTEX_ATTRIBS == VERT_ATTRIB_GENERIC0 == 16, and tabfv only has 17 slots,
so this doesn't make sense.
The segfault happened with the r300 driver, but it doesn't seem to be driver
specific.
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