Commit b8f78820 authored Aug 23, 2019 by Johannes Berg Committed by Richard Weinberger Sep 15, 2019

um: Avoid using uninitialized regs



In timer_real_alarm_handler(), regs is only initialized if
the context argument is non-NULL, also initialize in the
other case.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Anton Ivanov <anton.ivanov@cambridgegreys.co.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>

parent 68c15a2b

arch/um/os-Linux/signal.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -10,6 +10,7 @@
		#include <stdarg.h>
		#include <errno.h>
		#include <signal.h>
		#include <string.h>
		#include <strings.h>
		#include <as-layout.h>
		#include <kern_util.h>
		@@ -88,6 +89,8 @@ static void timer_real_alarm_handler(mcontext_t *mc)

		if (mc != NULL)
		get_regs_from_mc(&regs, mc);
		else
		memset(&regs, 0, sizeof(regs));
		timer_handler(SIGALRM, NULL, &regs);
		}