From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (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 38C3015BF for ; Sat, 30 Dec 2023 05:38:14 +0000 (UTC) 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-io1-f72.google.com with SMTP id ca18e2360f4ac-7b7fe6d256eso1064397039f.1 for ; Fri, 29 Dec 2023 21:38:14 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1703914694; x=1704519494; 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=xA09gMB3ML3lOLChXFxZR9a0ioNE2AnJcnW0WH8RchY=; b=eFxse+TKviVlJdOOHYm2rqNjYeHI43sU0uGwbXPVuMqguy5iWzz11661wHofSNyTBE NlDDnA7HyZco1cmTuZBfFlXt08d8GGl9YNumWjqa49wLZ4HquURDHDFjmuB8BDzwpTl7 4r7w81RObXrotlGS+5K1yUkJuaxQljmeIzsoH7JAce7NZsOzi5w1HsrBZ/yCTUx0JSbu lWF4CDHtmtNoNZIcsB1CQChU699ENHoGJwOIRSlLVg8Vl0ofSPrZR+b8kbGFjTaCgVqi 0nWGtvfTWl/ae2dJjNaWbTErXevvkuRdVjs80q9Ku5uA6gAvAN/KqETvRmzw5mXcwtgW USMg== X-Gm-Message-State: AOJu0YzEcNVtKnpbm6hlrGz6S8HZQCDKmt220Ur4Q19/CRvUHsidhYV0 NQXucmV3NbJYJuxIkls/TN7jnyVQ6a/uLQ5Aq4olPNlP2ko6DKQ= X-Google-Smtp-Source: AGHT+IEe7tV4IBJ3nggmrHzGSAFaBHjmqrypz/WQfrnUl+Q9LkvMA6KEv8l4TVe0gIiHr0F758KVvBWQolh+CKDXmMgYebN0E27X Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:488c:b0:46d:21:773b with SMTP id ct12-20020a056638488c00b0046d0021773bmr323361jab.0.1703914694347; Fri, 29 Dec 2023 21:38:14 -0800 (PST) Date: Fri, 29 Dec 2023 21:38:14 -0800 In-Reply-To: <000000000000d6b55e060d6bc390@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000015905b060db38ee5@google.com> Subject: Re: [syzbot] Re: [syzbot] [kernel?] KMSAN: uninit-value in profile_hits (3) From: syzbot To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: Re: [syzbot] [kernel?] KMSAN: uninit-value in profile_hits (3) Author: eadavis@qq.com please test uninit-value in profile_hits #syz test https://github.com/google/kmsan.git master diff --git a/kernel/profile.c b/kernel/profile.c index 8a77769bc4b4..37f30292b626 100644 --- a/kernel/profile.c +++ b/kernel/profile.c @@ -114,7 +114,7 @@ int __ref profile_init(void) buffer_bytes = prof_len*sizeof(atomic_t); - if (!alloc_cpumask_var(&prof_cpu_mask, GFP_KERNEL)) + if (!zalloc_cpumask_var(&prof_cpu_mask, GFP_KERNEL)) return -ENOMEM; cpumask_copy(prof_cpu_mask, cpu_possible_mask);