From nobody Fri Apr 17 07:11:46 2026 Received: from mail-oo1-f71.google.com (mail-oo1-f71.google.com [209.85.161.71]) (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 039A8288522 for ; Tue, 24 Feb 2026 06:35:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.71 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771914931; cv=none; b=tFV3TcN+FUh84qzHsbK9+6v2lMQrdhHBLUjD/J5Flv5sPP100S4QhQhDhPSPYGDanTR7FGzwYtOvwPnbiJ+UcfGTPV5q+aG5mvdgD8fHy7SGtWmuauE5wcWE1t0lkNJLtXjsuB/w4JL+eMRbpUd78Npamjo5/YPzlC3v63ke8uA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771914931; c=relaxed/simple; bh=nH9e5w6UIKw3z6cLE1IYLZ/eVYCIyy1R7ItukFqkIA0=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=ejoAWA7Ht26NbSKkWmwAaz/IZPrWJaHRAAxL7uUTZH/0Be8K7kk2UCv8fWAUbztYVvjd0vUJDaDuyAh+R/+sOgN+3Tk8QLRaVpNnhoaVvMx8e4Pb2IyuN39tAZ1+aEn4uwSeSAwaizxiWrTnCxKRaPL88cvfBK8CYhctLioeUQo= 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=209.85.161.71 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-f71.google.com with SMTP id 006d021491bc7-663006e4c3cso64888413eaf.2 for ; Mon, 23 Feb 2026 22:35:29 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1771914929; x=1772519729; 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=xena06vYKbSdJaysyDwZQKuMcZkvsW6Zcpu4Fx8nOSw=; b=kICFupvzmVMQL1FIzL6wEB9fZhXZFpJOw5NgkMS4+HNAucj8TB+ytLKKXvqf6HRV3I TiaNe9qJcYcPjEgFy11zVYRBGt3WKIDNUo/iwi9F43y0RAlGyaJG8CODzygKHRf6+5nD rbunVALXw1JDRJOswygTDAeXhSt9y/5eEJ/Yoq3MukVzijo2WU5XiiX6/GiUs66X6F/w v3nWTjC0PTcjv6OxiAXN7317bjAU7y0u/ZYVa84bAdcjyKgRy9su0/lvNwQKcRgnTWjh a8rz5YVuvNOFbNP/dRYAsNsYlCqnDpnCvSuOPArL/OdaEuF1eKXebCa4Yrzk4Wu8LQ9c Osnw== X-Gm-Message-State: AOJu0YxAkHaikXU7CLQT3rABlwTFyg3GSWETWcrJEiZ2AkbADDHf9hKA 0ov/VYSZrgjSBZb0T/TW00XqDwa/Xs2CpTvzXP/FZS+41ke9vFVTg75+ay8e4r2/ZZV6WuFgmnu xVXrL3yVfLYNgfs9heKI9LZsz6hgQKkmvW/qdloC2osSPfLFNBs89J5+i60A= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:2d0a:b0:672:6fdd:2a50 with SMTP id 006d021491bc7-679c448e229mr6318491eaf.31.1771914929066; Mon, 23 Feb 2026 22:35:29 -0800 (PST) Date: Mon, 23 Feb 2026 22:35:29 -0800 In-Reply-To: <66fdfef3.050a0220.9ec68.0031.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <699d46b1.050a0220.247d23.03b2.GAE@google.com> Subject: Forwarded: test patch 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: test patch Author: heming.zhao@suse.com #syz test diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c index e85b1ccf81be..4321d8f59402 100644 --- a/fs/ocfs2/quota_global.c +++ b/fs/ocfs2/quota_global.c @@ -311,7 +311,10 @@ int ocfs2_lock_global_qf(struct ocfs2_mem_dqinfo *oinf= o, int ex) spin_unlock(&dq_data_lock); if (ex) { inode_lock(oinfo->dqi_gqinode); - down_write(&OCFS2_I(oinfo->dqi_gqinode)->ip_alloc_sem); + if (!down_write_trylock(&OCFS2_I(oinfo->dqi_gqinode)->ip_alloc_sem)) { + inode_unlock(oinfo->dqi_gqinode); + return -EBUSY; + } } else { down_read(&OCFS2_I(oinfo->dqi_gqinode)->ip_alloc_sem); } diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c index de7f12858729..b7555aff169e 100644 --- a/fs/ocfs2/quota_local.c +++ b/fs/ocfs2/quota_local.c @@ -1224,7 +1224,10 @@ int ocfs2_create_local_dquot(struct dquot *dquot) int status; u64 pcount; =20 - down_write(&OCFS2_I(lqinode)->ip_alloc_sem); + if (!down_write_trylock(&OCFS2_I(lqinode)->ip_alloc_sem)) { + status =3D -EBUSY; + goto out; + } chunk =3D ocfs2_find_free_entry(sb, type, &offset); if (!chunk) { chunk =3D ocfs2_extend_local_quota_file(sb, type, &offset);