From nobody Sat Feb 7 17:58:50 2026 Received: from mail-oo1-f72.google.com (mail-oo1-f72.google.com [209.85.161.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D882A1E4BE for ; Sat, 13 Dec 2025 22:47:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765666078; cv=none; b=MmbUMPXwlowJ4BvhjBK0WygNaQ+HXInHp3wp6guUWK5JDGvK2khqp2eFJueIMYuglDKrYBdtD5XWscqQuVSon2Xs9U72D5zTBSBokt7TCQ1hjqdIN1kCcUT4FaYlotKSAjQcuA9LkgnT6O5Kb2+f1GdcqMg4APl2dXGeAJwaY3A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765666078; c=relaxed/simple; bh=C4hB6sFncecU8rPXW7cYj7N+i92gDeOpXjV3ewuQsRY=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=T0fbYLEMF+zcUthERU0DUg4jpfUshRF6hkrvAKP3hv3M7vcX+63SDyjPyx8F78xB3VoxqV7lbnl8ONAgWOLVbEr8nKQy8BS1iihCGVf5L3Pkg3yD8NadJcyPBZcPQI2xCtDz7pq6ZOJX2vGe/eatdHCY29ioUcGZy4anYFog3iM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.161.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oo1-f72.google.com with SMTP id 006d021491bc7-65b31ec93e7so4280588eaf.3 for ; Sat, 13 Dec 2025 14:47:56 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1765666076; x=1766270876; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=0mloqZGalpW2URnca7m4Q9zCaIue5orjNeXWWg09WrM=; b=u5E5Oi5IjlDMT8OPsu7j4omFgcjb7gRgE9oixRUcrtkLY9ITKGQX8mrHUAjlbFANGc mjtDdn81RjkjNobfTJxenA97mpLzxa2clos+kTmhh1uqA3JjHH2AZdxR5/7VUPyUoiEa CYaBc0SA4zVZqF9TqFgyQAda4XlSRjm2xxocFZEpSWjXeh9fttux5EnBvS6OM1lCQs3y ljD49noDrzAh7vHopZrf1QACXnIMVhPTJeWZ0teWMNAwAIyupQ3/QPYkFyaeySqzDUFQ lxug33app0YGzSRCjBqFMvc2k3YtGGyJoAAx9f2A3DSZrZvl7oJ49GuaslMemEi0uuoW dxeg== X-Gm-Message-State: AOJu0YxPiCbA6zEJ/4cSbHcmEnxsD+LtrL6Oan+RzskgdOgmC2F7wnOV klj+34yJ+WddFv384msOJD2Yho7F02MDCjrcFFD2jgKK2T7KX0BbaYEcPVqQ5S9C8U37FnnR4z0 hfjK6wLwAsKcWHMwcjXlNTTUX0FsXv13IWZHp/BmTVzdQaHPXrootMA4Gmjo= X-Google-Smtp-Source: AGHT+IH1Waq2gx3y+16Z98oan7zSyS6r1ozB6HY8V1y5dYAGZQ36I9Ar4yotdMhcdSpOo621ddTWm3O4KIZc2sptkg+juWQflJyg Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:1c9a:b0:659:9a49:8f43 with SMTP id 006d021491bc7-65b452556fbmr2617013eaf.84.1765666076024; Sat, 13 Dec 2025 14:47:56 -0800 (PST) Date: Sat, 13 Dec 2025 14:47:56 -0800 In-Reply-To: <692f9906.a70a0220.d98e3.01ae.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <693ded1c.050a0220.326d2b.0009.GAE@google.com> Subject: Forwarded: [PATCH] crypto: adiantum: initialize rbuf.bignum to avoid KMSAN warning From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com. *** Subject: [PATCH] crypto: adiantum: initialize rbuf.bignum to avoid KMSAN wa= rning Author: katharasasikumar007@gmail.com Signed-off-by: Kathara Sasikumar #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git= master --- crypto/adiantum.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/crypto/adiantum.c b/crypto/adiantum.c index a6bca877c3c7..edd53c793fda 100644 --- a/crypto/adiantum.c +++ b/crypto/adiantum.c @@ -310,6 +310,7 @@ static int adiantum_finish(struct skcipher_request *req) return err; } le128_sub(&rctx->rbuf.bignum, &rctx->rbuf.bignum, &digest); + memset(&rctx->rbuf.bignum, 0, sizeof(rctx->rbuf.bignum)); memcpy(virt + bulk_len, &rctx->rbuf.bignum, sizeof(le128)); flush_dcache_page(page); kunmap_local(virt); @@ -370,6 +371,7 @@ static int adiantum_crypt(struct skcipher_request *req,= bool enc) } else { /* Slow path that works for any source scatterlist */ err =3D adiantum_hash_message(req, src, src_nents, &digest); + memset(&rctx->rbuf.bignum, 0, sizeof(rctx->rbuf.bignum)); scatterwalk_map_and_copy(&rctx->rbuf.bignum, src, bulk_len, sizeof(le128), 0); } --=20 2.51.0