From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AAF67308F32; Thu, 23 Jul 2026 19:41:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784835703; cv=none; b=ipY9MjDWP9lF8vQTrMnnMjc9okTtWO9zso6fZq6IUj2HZJjDr73cnx/NKXipktM6D2nzsZbSWMu5i4rJ0Mq7W1XFYesRyXLz/Hhb+1RK0nv/Gnw7hT2knLw6ZSooQqRvurCW2XJkwAlSkQ/swSJUuqPShc2j4pJce5hCyZNpQ0c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784835703; c=relaxed/simple; bh=0Mc0Jyr4kRDKrEa7wg+/iQc8UfCNnm1H0tZPb34SeA4=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=iZE171txItPAfTmMfcToPHg49Xg+cRqtqLx9mX0ifI+WTlCfBOmkMUS1QE1OsnnBKRCotoKpfJZluBAit9W33+0yqFstJJs8trENzlA+mnO9gGoabSaStCr/lwP+wbIiTFVzYgFyNNVFvwEG5kMCxVP8zDZxTSIu2ILZOhiwDGw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bWFrC2NR; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="bWFrC2NR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 668651F000E9; Thu, 23 Jul 2026 19:41:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784835694; bh=erTKFW7H9+CoRoRVOrZp+ST96EFwosY/MdQIR3lDgkQ=; h=From:Subject:Date:To:Cc; b=bWFrC2NRQlMff/OsgKdNISoXn/VOAJbwNDYXcHBcrHiByQQQOw1U9D2mGs6mKNsuT zD7YGSt+k6cBLhPV5irhju5HIo6wFv2zUnhP7eUBdpF3jQXPuxTsPKmfANPXkOvKyJ NEQxn9rN+5M9VC53efcna255KTHrhVSjtavEcp1YpAru63TeSMR4ZLTXzgi6xvNdj4 U0YsKu4Ev2TWKjMYfmcQOCAytExN2gvS7hGa9oQ5gpzmORsQdxk0AH6sQQ3nWTjdNG 7HLExS4PAlkV6+F5qQnBxtReFkrwzHsOmXnjeMBmHZfW8B7qjsDMKMP/Tu8m2aeRLk SzM3DRjX3Je+A== From: Vincent Mailhol Subject: [PATCH v2 0/2] lib/ucs2_string.c: fix out-of-bounds read in ucs2_strnlen() Date: Thu, 23 Jul 2026 21:40:30 +0200 Message-Id: <20260723-fix-ucs2_strnlen-v2-0-9ea94e32a358@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAAAAAAAC/32NUQrCMBBEr1L220iyNBX88h5SJGk2bbCksmmDU nJ3Yw/g5xtm3uyQiAMluDY7MOWQwhIr4KmBYTJxJBFcZUCJnbwgCh/eYhsSPtLKcaYoVKu9dq1 VvrNQZy+m2jmU977yFNK68Od4yOqX/pFlJaSwRlvjCG2t3Z7EkebzwiP0pZQv43GbCLEAAAA= X-Change-ID: 20260722-fix-ucs2_strnlen-145f5d4b1f6b To: Andrew Morton Cc: linux-kernel@vger.kernel.org, Vincent Mailhol , stable@vger.kernel.org, Kees Cook X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=933; i=mailhol@kernel.org; h=from:subject:message-id; bh=0Mc0Jyr4kRDKrEa7wg+/iQc8UfCNnm1H0tZPb34SeA4=; b=owGbwMvMwCV2McXO4Xp97WbG02pJDFlJeRkSrCrLHP0fFZ3OkNq7Oyn75CYhcY9FCyv2Zh991 dF9Zd+MjoksDGJcDJZiiizLyjm5FToKvcMO/bWEmcPKBDJEWqSBAQhYGPhyE/NKjXSM9Ey1DfUM gQwdIwYuTgGY6mVnGBkaBZPWKvCdlmBLOX2j3Oz+4qsXO9r3RtU9m1MZdn+7Ykwiw/9Y8dur+Zg 13/A+S90iv2rjqwN8H/Yd2ZW0a/Jfu20P9LoZAQ== X-Developer-Key: i=mailhol@kernel.org; a=openpgp; fpr=ED8F700574E67F20E574E8E2AB5FEB886DBB99C2 This series fixes an off-by-one out-of-bounds read in ucs2_strnlen(). The first patch is the real fix, the second patch comes as a bonus and fixes the code indentation. Signed-off-by: Vincent Mailhol --- Changes in v2: - Toggle the patch order. ucs2_strnlen() is now before the tabulation fix to make it easier to backport. - Add Cc: stable on the ucs2_strnlen(). Link to v1: https://lore.kernel.org/r/20260722-fix-ucs2_strnlen-v1-0-ba5bade2b026@kernel.org --- Vincent Mailhol (2): lib/ucs2_string.c: fix out-of-bounds read in ucs2_strnlen() lib/ucs2_string.c: fix indentation lib/ucs2_string.c | 38 +++++++++++++++++++------------------- 1 file changed, 19 insertions(+), 19 deletions(-) --- base-commit: 1590cf0329716306e948a8fc29f1d3ee87d3989f change-id: 20260722-fix-ucs2_strnlen-145f5d4b1f6b Best regards, -- Vincent Mailhol