From nobody Sat Feb 7 22:21:33 2026 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (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 EDED8611E for ; Tue, 28 Oct 2025 07:02:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761634940; cv=none; b=nnBwuQq7ua1gbOOBhtnrrohPFI8jeuaKERFlQfQUcKWvfsPZqNcLSBcvtMuHJ66YTbaoFFVBjN1/OXcHdZPblMMEhoDoQV0SNKHusgY9Gtivve0axl5VBmlA8DRTnfIhqynIZhW5YOWl4qaVYxWV++J2ti2DcwwlyQ9cSPf8SG8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761634940; c=relaxed/simple; bh=o6vfYRL670UTzvEYI0IYtYuh5lvpPmxDhpGNxYD+n70=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=rGp+MvRyM10SeY7Y1/7wgQH6qN/KEP03RQ5Oy9/UxdKIxr2d1y6WN7k6+3L1KtT0glyGPFMNAfIQxdYpyn/wj2zJMUsXWWBwnQlMLb/z+TLKF3jwdjighU6Nx0VCxR+62c5hUzlb+y7pSpjwjRnOaU1lL8/Fy1zw176hqH/lXes= 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=209.85.166.198 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-f198.google.com with SMTP id e9e14a558f8ab-430d4ed5cfcso205689685ab.0 for ; Tue, 28 Oct 2025 00:02:18 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1761634938; x=1762239738; 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=KjjKvb/C0MS+AEY/AcDfzOoViNt0lKgCZMm+iN7N0lI=; b=UDvyB2V0iIRwb+Paxt2Wf0iS3j6nOTg3KUjSY9R/jIVF3R0CesucC9ySIlk6eSi9HN jkGLPPxM9JzN2JX2QYdawkF5LZBeRsE/DGpJnhxB9DTiCINOz/Z8GrF5EGvlOd7t2YoJ pHEOVk+9bGzlPkG2pV2RVBDsKEwQDq0W05YE7nr9Kq01RkBmGglMq/0e3z+Bnbw584ub yXGU192b2tFeN0ULYBGPvLQDT1z8+SGw39UdmQlbnjAL2qEmEXK6NA+w7eAwAm1WIPA5 wPU5MpEQyfBMt9P/VqQBM5HQWAO3Eq5Nqc73dO5NwnngOkN0JYsjK/BypcX1AlDXR4LH H+uQ== X-Gm-Message-State: AOJu0YxRfyAb9+/9Hu/Kg9fJj6QjgcqlJtqCSTAGIVHbK7FPfLrIyzVA TJ757+cwDwlEgI6xUbStHZyW9aWOQvJqHAey39cnyh2N0r3dQfL8QlClI2O2HPZ7LTAYOm8pfVO RTuk+77gRwnFiFoa4ikrSTDQnA1K8eZD6K3jJJ05G3Rk3U/3/AkK4Cs18hYw= X-Google-Smtp-Source: AGHT+IHF/fkg2AhKcwJ+bqPQzWK6av2lKXK6ngYQbQHua1Tfiv8g+K5YBQ9yJhhp24F+BahW+/QWib/k79Ue6Z913bpN/5DBcMka Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3e02:b0:42f:9bb5:1c4a with SMTP id e9e14a558f8ab-4320f7a9115mr37882225ab.27.1761634938072; Tue, 28 Oct 2025 00:02:18 -0700 (PDT) Date: Tue, 28 Oct 2025 00:02:18 -0700 In-Reply-To: <00000000000052138306204134f2@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69006a7a.050a0220.17b81f.0008.GAE@google.com> Subject: Forwarded: #syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git fd57572253bc356330dbe5b233c2e1d8426c66fd 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: #syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds= /linux.git fd57572253bc356330dbe5b233c2e1d8426c66fd Author: dmantipov@yandex.ru diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c index fcc89856ab95..1b6bdd9d7755 100644 --- a/fs/ocfs2/inode.c +++ b/fs/ocfs2/inode.c @@ -1503,6 +1503,23 @@ int ocfs2_validate_inode_block(struct super_block *s= b, goto bail; } =20 + if (le32_to_cpu(di->i_flags) & OCFS2_CHAIN_FL) { + struct ocfs2_chain_list *cl =3D &di->id2.i_chain; + + if (le16_to_cpu(cl->cl_count) !=3D ocfs2_chain_recs_per_inode(sb)) { + rc =3D ocfs2_error(sb, "Invalid dinode %llu: chain list count %u\n", + (unsigned long long)bh->b_blocknr, + le16_to_cpu(cl->cl_count)); + goto bail; + } + if (le16_to_cpu(cl->cl_next_free_rec) > le16_to_cpu(cl->cl_count)) { + rc =3D ocfs2_error(sb, "Invalid dinode %llu: chain list index %u\n", + (unsigned long long)bh->b_blocknr, + le16_to_cpu(cl->cl_next_free_rec)); + goto bail; + } + } + rc =3D 0; =20 bail: