linux-kernel - [PATCH mm v10 19/42] kasan: rename print_shadow_for_address to print_memory

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <4bc8a39b683988a2c672a0d99df12eee1e3c85cd.1605305705.git.andreyknvl@google.com>
Date:   Fri, 13 Nov 2020 23:15:47 +0100
From:   Andrey Konovalov <andreyknvl@...gle.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Alexander Potapenko <glider@...gle.com>,
        Marco Elver <elver@...gle.com>,
        Evgenii Stepanov <eugenis@...gle.com>,
        Branislav Rankov <Branislav.Rankov@....com>,
        Kevin Brodsky <kevin.brodsky@....com>,
        kasan-dev@...glegroups.com, linux-arm-kernel@...ts.infradead.org,
        linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        Andrey Konovalov <andreyknvl@...gle.com>
Subject: [PATCH mm v10 19/42] kasan: rename print_shadow_for_address to print_memory_metadata

This is a preparatory commit for the upcoming addition of a new hardware
tag-based (MTE-based) KASAN mode.

Hardware tag-based KASAN won't be using shadow memory, but will reuse
this function. Rename "shadow" to implementation-neutral "metadata".

No functional changes.

Signed-off-by: Andrey Konovalov <andreyknvl@...gle.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@....com>
Reviewed-by: Marco Elver <elver@...gle.com>
Reviewed-by: Alexander Potapenko <glider@...gle.com>
---
Change-Id: I18397dddbed6bc6d365ddcaf063a83948e1150a5
---
 mm/kasan/report.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/kasan/report.c b/mm/kasan/report.c
index 2990ca34abaf..5d5733831ad7 100644
--- a/mm/kasan/report.c
+++ b/mm/kasan/report.c
@@ -252,7 +252,7 @@ static int shadow_pointer_offset(const void *row, const void *shadow)
 		(shadow - row) / SHADOW_BYTES_PER_BLOCK + 1;
 }
 
-static void print_shadow_for_address(const void *addr)
+static void print_memory_metadata(const void *addr)
 {
 	int i;
 	const void *shadow = kasan_mem_to_shadow(addr);
@@ -338,7 +338,7 @@ void kasan_report_invalid_free(void *object, unsigned long ip)
 	pr_err("\n");
 	print_address_description(object, tag);
 	pr_err("\n");
-	print_shadow_for_address(object);
+	print_memory_metadata(object);
 	end_report(&flags);
 }
 
@@ -379,7 +379,7 @@ static void __kasan_report(unsigned long addr, size_t size, bool is_write,
 	if (addr_has_metadata(untagged_addr)) {
 		print_address_description(untagged_addr, get_tag(tagged_addr));
 		pr_err("\n");
-		print_shadow_for_address(info.first_bad_addr);
+		print_memory_metadata(info.first_bad_addr);
 	} else {
 		dump_stack();
 	}
-- 
2.29.2.299.gdc1121823c-goog