From nobody Thu Oct 2 07:46:34 2025 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) (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 9BD63D528 for ; Thu, 18 Sep 2025 19:35:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.197 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758224109; cv=none; b=EvYkifxOoJnHLTVG9zO3Fs0g+ifwlZRWmxDEUFrrilO9peAJTULTBO1wftt00F2oxd+4Eh7p5EinBOR4YwFGy/T1ZjpJLzb+Uwgw12NMDRaNYkRXkI/shTU5590abgUfbKLabU4yquSjKtZ1u83hFxrjngvIyLshKrf7YQgdJ4w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758224109; c=relaxed/simple; bh=sPkBU1nDyCkSyLQKmZ4RlHzT2QokMe2yIRpOmhI9co4=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=a9YOlaXDTYQDu0Cqn/nTl8Bc9PusnzuL/a0LJiLJXVGykKleP0K8xdlmkPjKGigEx6YUES2nlkFAASrss0i3Za2gANVsrxlR2m02JRqly03QDQMSJ2QXkUGn9Sp/H5Bei9qfff7fBTjjsTz9Yu6aerrXwy0qmA1Aw47JPDIUFmI= 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=209.85.166.197 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-f197.google.com with SMTP id e9e14a558f8ab-424122b50aeso14135005ab.0 for ; Thu, 18 Sep 2025 12:35:07 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758224107; x=1758828907; 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=FP2yXxwXp4O3NZnhi4S/6nC7WECV4xsQF6DiuwSkHAg=; b=ZdNsznqcmZjOkdLNFRiB/YbmTXBuJ8gH4ZGo9UUYikV/RzdY7JoMz3dFd2UBWUjtxO Crb/tg25HuW1yj0uV8qtwot6hDtWQJXTVfFFnTOvCGJDrdbNNvjZryyTn5Or6iWscHhR 6UdPsLj2uEez2FfzkKHg7ZPsR43UqQEKwv/OHDe7vxvqnsn5eVN999bxqOXD3viKwfSi wcMVHNVsWAVxQsIHNUGa4p2VyQflpyxaWs/sm7N7SVAh3nJPdBDuQJIhWQdiG4/sS2/a vIYRXU2KLs73TrULJGKPxM1jDujkK51anvQ/6B2vobsfNIpTwlDCrnF9bAk4cO76UDrB wJag== X-Gm-Message-State: AOJu0Yx2q5Ce5ieIacfmkONApuap8KOwvxGST8ZDLKQ2hnW5Z9t5oQ1m ggBb6JxyY7/khnnay+wS5ol6S9MDnwPoTFf8uY0tXeDeoGlXWxg1hYLim1B5E7R6EE6+BSgxJZB ugGLoQ7foOA/zvtkWVKDrQvWxd17HjqGcvJ2J99gtGHFuQ9Nlh8lLzjvuvFc= X-Google-Smtp-Source: AGHT+IEWkWvuFHRFeNW4ddknB8TVhJVrLeYul46fVW5AjqlHjdwzd7qDNdkqkoIYoffnObZqe1frmU9KSMoUXT70xXWQTMsVvB0M 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:b26:b0:424:7dfa:6c05 with SMTP id e9e14a558f8ab-424819a9bacmr12954005ab.23.1758224106842; Thu, 18 Sep 2025 12:35:06 -0700 (PDT) Date: Thu, 18 Sep 2025 12:35:06 -0700 In-Reply-To: <68cb3c62.050a0220.50883.002b.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68cc5eea.050a0220.28a605.000c.GAE@google.com> Subject: Forwarded: Re: [syzbot] [ntfs3?] KMSAN: uninit-value in ntfs_read_hdr (3) 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: Re: [syzbot] [ntfs3?] KMSAN: uninit-value in ntfs_read_hdr (3) Author: sidharthseela@gmail.com Signed-off-by: Sidharth Seela Reported-by: syzbot+332bd4e9d148f11a87dc@syzkaller.appspotmail.com #syz test diff --git a/fs/ntfs3/index.c b/fs/ntfs3/index.c index 1bf2a6593dec..3c44af1af9a0 100644 --- a/fs/ntfs3/index.c +++ b/fs/ntfs3/index.c @@ -718,7 +718,7 @@ static struct NTFS_DE *hdr_find_e(const struct ntfs_ind= ex *indx, const struct INDEX_HDR *hdr, const void *key, size_t key_len, const void *ctx, int *diff) { - struct NTFS_DE *e, *found =3D NULL; + struct NTFS_DE *e =3D NULL, *found =3D NULL; NTFS_CMP_FUNC cmp =3D indx->cmp; int min_idx =3D 0, mid_idx, max_idx =3D 0; int diff2; --=20 2.47.3