Commit 4debae6f authored Jun 20, 2016 by Peter Maydell Committed by Riku Voipio Jun 26, 2016

linux-user: Fix wrong type used for argument to rt_sigqueueinfo



The third argument to the rt_sigqueueinfo syscall is a pointer to
a siginfo_t, not a pointer to a sigset_t. Fix the error in the
arguments to lock_user(), which meant that we would not have
detected some faults that we should.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>

parent ba453780

linux-user/syscall.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -7876,8 +7876,11 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
		case TARGET_NR_rt_sigqueueinfo:
		{
		siginfo_t uinfo;
		if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1)))

		p = lock_user(VERIFY_READ, arg3, sizeof(target_siginfo_t), 1);
		if (!p) {
		goto efault;
		}
		target_to_host_siginfo(&uinfo, p);
		unlock_user(p, arg1, 0);
		ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo));