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Commit ed1189b7 authored by Olaf Hering's avatar Olaf Hering Committed by Paul Mackerras
Browse files

[PATCH] powerpc: prevent stack corruption in call_prom_ret 



Use the correct pointer to clear the memory of the return values,
to prevent stack corruption in the callers stackframe.

Signed-off-by: default avatarOlaf Hering <olh@suse.de>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 48abec07

arch/powerpc/kernel/prom_init.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -265,7 +265,7 @@ static int __init call_prom_ret(const char *service, int nargs, int nret, 
	va_end(list);

	va_end(list);





	for (i = 0; i < nret; i++)

	for (i = 0; i < nret; i++)

		rets[nargs+i] = 0;

		args.args[nargs+i] = 0;





	if (enter_prom(&args, RELOC(prom_entry)) < 0)

	if (enter_prom(&args, RELOC(prom_entry)) < 0)

		return PROM_ERROR;

		return PROM_ERROR;