linux-kernel - [PATCH v4 0/2] string: Add load_unaligned_zeropad() code path to sized

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Message-ID: <20250329000338.1031289-1-pcc@google.com>
Date: Fri, 28 Mar 2025 17:03:35 -0700
From: Peter Collingbourne <pcc@...gle.com>
To: Alexander Viro <viro@...iv.linux.org.uk>, Christian Brauner <brauner@...nel.org>, Jan Kara <jack@...e.cz>, 
	Andrew Morton <akpm@...ux-foundation.org>, Kees Cook <kees@...nel.org>, 
	Andy Shevchenko <andy@...nel.org>, Andrey Konovalov <andreyknvl@...il.com>, 
	Catalin Marinas <catalin.marinas@....com>, Mark Rutland <mark.rutland@....com>
Cc: Peter Collingbourne <pcc@...gle.com>, linux-fsdevel@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v4 0/2] string: Add load_unaligned_zeropad() code path to sized_strscpy()

This series fixes an issue where strscpy() would sometimes trigger
a false positive KASAN report with MTE.

v4:
- clarify commit message
- improve comment

v3:
- simplify test case

Peter Collingbourne (1):
  string: Add load_unaligned_zeropad() code path to sized_strscpy()

Vincenzo Frascino (1):
  kasan: Add strscpy() test to trigger tag fault on arm64

 lib/string.c            | 13 ++++++++++---
 mm/kasan/kasan_test_c.c | 16 ++++++++++++++++
 2 files changed, 26 insertions(+), 3 deletions(-)

-- 
2.49.0.472.ge94155a9ec-goog