From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (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 299F02B9C0 for ; Fri, 3 May 2024 14:41:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714747269; cv=none; b=YDuxGg4VfyAeXPelPmvHVQih+nFV2T9XVXIQAVSdc81lj0LBEr5L84XuGHuk0DY4mG0As8guEmWsVaEyoAenhkLINTbCqO3bhbKHOS2PXKRXM+YabNmIToxbkZu671krjHeIoZQyIBFpN/rc7Bvnyf5h45Pjy7GOmDoszqo1Ee4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714747269; c=relaxed/simple; bh=WQN/EnPah1ram2Vd3RsbdX40jJtEnD2QyPPDAIT0EFU=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To:Cc: Content-Type; b=CTfjUHYkRuhCy2p/hQ+dZYFPBbn1QhtOopoI5xYP/9U5MUEarA300reOLR8Ain0zptnFlW9LEgAYryE9fAvpOV7zf2TI4uiJrxG7n5JvhQaICtnI7hv1uwgOXGLBnIG4VIIUPLHcy3VsTOylMcMvJhLa4CcdPJefhjlzZmMc1DA= 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=209.85.166.200 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-il1-f200.google.com with SMTP id e9e14a558f8ab-36c2ff79144so84416955ab.2 for ; Fri, 03 May 2024 07:41:07 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1714747267; x=1715352067; h=cc: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=RCRfSlaPM1t5F/6SBS/FBJZDsXajbzGONBj6BMeCrak=; b=tsjxLJri9Dyvb+05GWkBjeDNljjSVBuvzz5wswFwxCHgdHFonD9Udm4Owz1wJ7YyND q6AtV1oEZIs3nwY38lijlJsEjOFjvhomaZMEduaXsSyVw+r5JhMjeDwvZANSbhS+dlJW Q1fCaqlh0OzMqZD2lAPjSqff7WkCHJgUVLCinrb5EAihs1zP+GH0aVBjyGvPWg5eVn+S nCL15HI95mlmzzNRgUsEiLP3WqSTbUFZlIvBRC7xUSp22tBJQQ3K01s7b3LlVSyurnjQ yE9k0gAZJWlj6jSj8hpGzwRjpEQTQ3oJ/nbwEelj3Fl0xnRCl8KbUJ6dbC9Hw/X+lzoG GpHw== X-Gm-Message-State: AOJu0YxvsNZ0/RaEih2RHw/F5A5ugK6FKw2e6XPN+CWypz7FYAEpKz/m HhT5NEzRhTtuacut2tvfOhpCWyjSMGx2IoZKJ6Pqn0jvLb/h4FTYpz2d3NL7mnQHBWE+xpmtqrN mOyFrx0ppOzJvbqIRnBvLS6fCshodSnpE/Lugx81wJai4BZhW6BAcdNo= X-Google-Smtp-Source: AGHT+IEZzzy0L3gvpaqgTyOdlHFloLgjERn7EHi0NtbTEiMb9YdgWxZGjYiWbMzZSOlTCNqqW+xmcMXbXZGwnhrLoqMczdzk/Who Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1522:b0:368:c9e2:b372 with SMTP id i2-20020a056e02152200b00368c9e2b372mr118992ilu.0.1714747267452; Fri, 03 May 2024 07:41:07 -0700 (PDT) Date: Fri, 03 May 2024 07:41:07 -0700 In-Reply-To: <20240503144055.3820-1-n.zhandarovich@fintech.ru> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000c1a36406178db530@google.com> Subject: Re: [syzbot] [crypto?] KMSAN: uninit-value in skcipher_walk_virt From: syzbot To: n.zhandarovich@fintech.ru Cc: linux-kernel@vger.kernel.org, n.zhandarovich@fintech.ru, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" > req->base.flags were not initialized, zero might suit in this case. > Do it with skcipher_request_set_callback() as it's common practice. > > #syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master This crash does not have a reproducer. I cannot test it. > > --- > fs/bcachefs/checksum.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/fs/bcachefs/checksum.c b/fs/bcachefs/checksum.c > index 7ed779b411f6..088fd2e7bdf1 100644 > --- a/fs/bcachefs/checksum.c > +++ b/fs/bcachefs/checksum.c > @@ -102,6 +102,7 @@ static inline int do_encrypt_sg(struct crypto_sync_skcipher *tfm, > int ret; > > skcipher_request_set_sync_tfm(req, tfm); > + skcipher_request_set_callback(req, 0, NULL, NULL); > skcipher_request_set_crypt(req, sg, sg, len, nonce.d); > > ret = crypto_skcipher_encrypt(req);