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[PATCH] powerpc: prevent stack corruption in call_prom_ret
author
Olaf Hering
<olh@suse.de>
Tue, 29 Nov 2005 13:04:05 +0000
(14:04 +0100)
committer
Paul Mackerras
<paulus@samba.org>
Wed, 30 Nov 2005 02:55:59 +0000
(13:55 +1100)
Use the correct pointer to clear the memory of the return values,
to prevent stack corruption in the callers stackframe.
Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
arch/powerpc/kernel/prom_init.c
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diff --git
a/arch/powerpc/kernel/prom_init.c
b/arch/powerpc/kernel/prom_init.c
index
4ce0105
..
bcdc209
100644
(file)
--- a/
arch/powerpc/kernel/prom_init.c
+++ b/
arch/powerpc/kernel/prom_init.c
@@
-265,7
+265,7
@@
static int __init call_prom_ret(const char *service, int nargs, int nret,
va_end(list);
for (i = 0; i < nret; i++)
-
ret
s[nargs+i] = 0;
+
args.arg
s[nargs+i] = 0;
if (enter_prom(&args, RELOC(prom_entry)) < 0)
return PROM_ERROR;