From 573b22ccb7ce9ab7f0539a2e11a9d3609a8783f5 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 6 Mar 2023 01:20:30 +0000 Subject: sh: sanitize the flags on sigreturn We fetch %SR value from sigframe; it might have been modified by signal handler, so we can't trust it with any bits that are not modifiable in user mode. Signed-off-by: Al Viro Cc: Rich Felker Signed-off-by: Linus Torvalds --- arch/sh/include/asm/processor_32.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/sh/include') diff --git a/arch/sh/include/asm/processor_32.h b/arch/sh/include/asm/processor_32.h index 27aebf1e75a2..3ef7adf739c8 100644 --- a/arch/sh/include/asm/processor_32.h +++ b/arch/sh/include/asm/processor_32.h @@ -50,6 +50,7 @@ #define SR_FD 0x00008000 #define SR_MD 0x40000000 +#define SR_USER_MASK 0x00000303 // M, Q, S, T bits /* * DSP structure and data */ -- cgit v1.2.3