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Message-Id: <20220623164344.621630813@linuxfoundation.org>
Date: Thu, 23 Jun 2022 18:41:25 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Ard Biesheuvel <ardb@...nel.org>,
Richard Henderson <rth@...ddle.net>,
Mark Brown <broonie@...nel.org>, Theodore Tso <tytso@....edu>,
"Jason A. Donenfeld" <Jason@...c4.com>
Subject: [PATCH 4.14 051/237] linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check
From: Richard Henderson <richard.henderson@...aro.org>
commit 904caa6413c87aacbf7d0682da617c39ca18cf1a upstream.
We must not use the pointer output without validating the
success of the random read.
Reviewed-by: Ard Biesheuvel <ardb@...nel.org>
Signed-off-by: Richard Henderson <rth@...ddle.net>
Signed-off-by: Mark Brown <broonie@...nel.org>
Link: https://lore.kernel.org/r/20200110145422.49141-7-broonie@kernel.org
Signed-off-by: Theodore Ts'o <tytso@....edu>
Signed-off-by: Jason A. Donenfeld <Jason@...c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
include/linux/random.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -118,19 +118,19 @@ unsigned long randomize_page(unsigned lo
#ifdef CONFIG_ARCH_RANDOM
# include <asm/archrandom.h>
#else
-static inline bool arch_get_random_long(unsigned long *v)
+static inline bool __must_check arch_get_random_long(unsigned long *v)
{
return false;
}
-static inline bool arch_get_random_int(unsigned int *v)
+static inline bool __must_check arch_get_random_int(unsigned int *v)
{
return false;
}
-static inline bool arch_get_random_seed_long(unsigned long *v)
+static inline bool __must_check arch_get_random_seed_long(unsigned long *v)
{
return false;
}
-static inline bool arch_get_random_seed_int(unsigned int *v)
+static inline bool __must_check arch_get_random_seed_int(unsigned int *v)
{
return false;
}
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