[23/32] s390/checksum: Add a KMSAN check

Message ID	20231115203401.2495875-24-iii@linux.ibm.com (mailing list archive)
State	New
Headers	show Return-Path: <owner-linux-mm@kvack.org> From: Ilya Leoshkevich <iii@linux.ibm.com> To: Alexander Gordeev <agordeev@linux.ibm.com>, Alexander Potapenko <glider@google.com>, Andrew Morton <akpm@linux-foundation.org>, Christoph Lameter <cl@linux.com>, David Rientjes <rientjes@google.com>, Joonsoo Kim <iamjoonsoo.kim@lge.com>, Marco Elver <elver@google.com>, Masami Hiramatsu <mhiramat@kernel.org>, Pekka Enberg <penberg@kernel.org>, Steven Rostedt <rostedt@goodmis.org>, Vasily Gorbik <gor@linux.ibm.com>, Vlastimil Babka <vbabka@suse.cz> Cc: Christian Borntraeger <borntraeger@linux.ibm.com>, Dmitry Vyukov <dvyukov@google.com>, Hyeonggon Yoo <42.hyeyoo@gmail.com>, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-s390@vger.kernel.org, linux-trace-kernel@vger.kernel.org, Mark Rutland <mark.rutland@arm.com>, Roman Gushchin <roman.gushchin@linux.dev>, Sven Schnelle <svens@linux.ibm.com>, Ilya Leoshkevich <iii@linux.ibm.com> Subject: [PATCH 23/32] s390/checksum: Add a KMSAN check Date: Wed, 15 Nov 2023 21:30:55 +0100 Message-ID: <20231115203401.2495875-24-iii@linux.ibm.com> In-Reply-To: <20231115203401.2495875-1-iii@linux.ibm.com> References: <20231115203401.2495875-1-iii@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: owner-linux-mm@kvack.org Precedence: bulk
Series	kmsan: Enable on s390 \| expand [00/32] kmsan: Enable on s390 [01/32] ftrace: Unpoison ftrace_regs in ftrace_ops_list_func() [02/32] kmsan: Make the tests compatible with kmsan.panic=1 [04/32] kmsan: Increase the maximum store size to 4096 [05/32] kmsan: Fix is_bad_asm_addr() on arches with overlapping address spaces [06/32] kmsan: Fix kmsan_copy_to_user() on arches with overlapping address spaces [08/32] kmsan: Remove an x86-specific #include from kmsan.h [10/32] kmsan: Expose kmsan_get_metadata() [11/32] kmsan: Export panic_on_kmsan [12/32] kmsan: Allow disabling KMSAN checks for the current task [13/32] kmsan: Support SLAB_POISON [15/32] mm: slub: Let KMSAN access metadata [16/32] mm: kfence: Disable KMSAN when checking the canary [17/32] lib/string: Add KMSAN support to strlcpy() and strlcat() [18/32] lib/zlib: Unpoison DFLTCC output buffers [19/32] kmsan: Accept ranges starting with 0 on s390 [20/32] s390: Turn off KMSAN for boot, vdso and purgatory [21/32] s390: Use a larger stack for KMSAN [22/32] s390/boot: Add the KMSAN runtime stub [23/32] s390/checksum: Add a KMSAN check [24/32] s390/cpacf: Unpoison the results of cpacf_trng() [26/32] s390/mm: Define KMSAN metadata for vmalloc and modules [27/32] s390/string: Add KMSAN support [28/32] s390/traps: Unpoison the kernel_stack_overflow()'s pt_regs [30/32] s390/unwind: Disable KMSAN checks [31/32] s390: Implement the architecture-specific kmsan functions [32/32] kmsan: Enable on s390

Message ID

20231115203401.2495875-24-iii@linux.ibm.com (mailing list archive)

State

New

Headers

From: Ilya Leoshkevich <iii@linux.ibm.com>
To: Alexander Gordeev <agordeev@linux.ibm.com>,
        Alexander Potapenko <glider@google.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Christoph Lameter <cl@linux.com>,
 David Rientjes <rientjes@google.com>,
        Joonsoo Kim <iamjoonsoo.kim@lge.com>, Marco Elver <elver@google.com>,
        Masami Hiramatsu <mhiramat@kernel.org>,
        Pekka Enberg <penberg@kernel.org>,
        Steven Rostedt <rostedt@goodmis.org>,
        Vasily Gorbik <gor@linux.ibm.com>, Vlastimil Babka <vbabka@suse.cz>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>,
        Dmitry Vyukov <dvyukov@google.com>,
        Hyeonggon Yoo <42.hyeyoo@gmail.com>, kasan-dev@googlegroups.com,
        linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        linux-s390@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
        Mark Rutland <mark.rutland@arm.com>,
        Roman Gushchin <roman.gushchin@linux.dev>,
        Sven Schnelle <svens@linux.ibm.com>,
        Ilya Leoshkevich <iii@linux.ibm.com>
Subject: [PATCH 23/32] s390/checksum: Add a KMSAN check
Date: Wed, 15 Nov 2023 21:30:55 +0100
Message-ID: <20231115203401.2495875-24-iii@linux.ibm.com>
In-Reply-To: <20231115203401.2495875-1-iii@linux.ibm.com>
References: <20231115203401.2495875-1-iii@linux.ibm.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Sender: owner-linux-mm@kvack.org
Precedence: bulk

Series

kmsan: Enable on s390 | expand

Commit Message

Ilya Leoshkevich Nov. 15, 2023, 8:30 p.m. UTC

Add a KMSAN check to the CKSM inline assembly, similar to how it was
done for ASAN in commit e42ac7789df6 ("s390/checksum: always use cksm
instruction").

Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
---
 arch/s390/include/asm/checksum.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/s390/include/asm/checksum.h b/arch/s390/include/asm/checksum.h
index 69837eec2ff5..55ba0ddd8eab 100644
--- a/arch/s390/include/asm/checksum.h
+++ b/arch/s390/include/asm/checksum.h
@@ -13,6 +13,7 @@ 
 #define _S390_CHECKSUM_H
 
 #include <linux/kasan-checks.h>
+#include <linux/kmsan-checks.h>
 #include <linux/in6.h>
 
 /*
@@ -35,6 +36,7 @@  static inline __wsum csum_partial(const void *buff, int len, __wsum sum)
 	};
 
 	kasan_check_read(buff, len);
+	kmsan_check_memory(buff, len);
 	asm volatile(
 		"0:	cksm	%[sum],%[rp]\n"
 		"	jo	0b\n"

[23/32] s390/checksum: Add a KMSAN check

Commit Message

Patch