From mboxrd@z Thu Jan 1 00:00:00 1970 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 5572927604E for ; Thu, 25 Sep 2025 21:06:50 +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=1758834411; cv=none; b=YJ591X1WKDFO1qVEhNYz7jVevCZqF40Zh+bsS7mL17Z4IUGkmTzsI6olS+KqqABFjwmw8A7RY1FkZp2iSOr1YdJeiJ331kH8Kf7oyDL/+hyE5hj7cTzW55SDMuKTc6dv4pkp1gxUc2XH/D3DTBMvyR5OX/m65TJUa9crakwWJoc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758834411; c=relaxed/simple; bh=+w+qdEoWQ1R2rgReQ4IhudroyDq+X+4+Xc4dHpcACzI=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To:Cc: Content-Type; b=kr49A1B0eDLojSuRgEYDNl4tLgQ5/23FheXdVqHe9YqEiHzbD5xoMb48wWLLuWclZPiklr2RhGnKmHRSJ+CwjturILOpqWd3XbuMka/i3O51kvb6DvMBMaoWJwtbGzfavQyYewPcQQfv1y4k5CUY0pjem+1A0ttxSHJTlQ3zTKc= 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-42571803464so34440085ab.3 for ; Thu, 25 Sep 2025 14:06:50 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758834409; x=1759439209; 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=Fv79g2E8KXfLwQqD7s385jEpGi1SwHV1FhuuxiinpRM=; b=G31+oUStGU6NBNF6/o3MqJaW+9BSHPf97uFF/xkiMnLYmWlX8dC09dR/RLcAAr2Hye CjrrzR7E5dT8Ih4yKTzVtpGrmNLxTOFW5ekIMojrtcwWr64G0D1aFyO+JwMhD3CkcFFW TmnLVsWI1Yt65uZYINi/7vTF8TCMiWZUMLhssT051z/TwH6tad7sqEyEJ+pXRgygdlkE Tr8guX1c7ZvsADKlUIYIHaSMeuaawqk13xqH1aTfW5kg+AqUoYEjZ92/vrefCw7yH4y4 sJp4ELhQS6H8RE1gl07c8iknvtsHAVFz8GnFkrYXPIy/FISvS9bQ40foCYnxPM0ARO2R NvNA== X-Forwarded-Encrypted: i=1; AJvYcCVOfUlkCNc/yTHAb+5d/kASlPA18KDYsnmbE2QutLmT9Uh8A+wtWldVxGfNjBA7MUNsRnNfM1/jB3liWVE=@vger.kernel.org X-Gm-Message-State: AOJu0Yyi9Qh4f7DZL1wdKyXHXxE1x13gijAAaUTSD/7DXTrFd6HFAjeZ lGQM+W3WBTBjNADSSIkXS3OoZDn2QghRZaIGmz2yQ5Wy8A7icllw5hFwkdz92nRxTWmAfR4vx1Z UlIMTISaBX5w/IJsYU1EYXuogBkzP5pYY8sa/1IXEqhlV8Lf8cMxjQb02BIU= X-Google-Smtp-Source: AGHT+IGsLaZS8VknIRu4I+IiUzCwFepVIIzy5B7otWpAosET5cs+1XLXxbyE2jMygx6/b0ue2EYBuZxmGwSFoxb+FmYjNP+dFm+b Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:180a:b0:425:7534:ab09 with SMTP id e9e14a558f8ab-425955bcf37mr68696405ab.7.1758834409418; Thu, 25 Sep 2025 14:06:49 -0700 (PDT) Date: Thu, 25 Sep 2025 14:06:49 -0700 In-Reply-To: <20250925144934.150299-1-kartikey406@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68d5aee9.050a0220.25d7ab.008a.GAE@google.com> Subject: [syzbot ci] Re: hugetlbfs: skip VMAs without shareable locks in hugetlb_vmdelete_list From: syzbot ci To: akpm@linux-foundation.org, david@redhat.com, kartikey406@gmail.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, muchun.song@linux.dev, osalvador@suse.de, syzbot@syzkaller.appspotmail.com Cc: syzbot@lists.linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot ci has tested the following series [v1] hugetlbfs: skip VMAs without shareable locks in hugetlb_vmdelete_list https://lore.kernel.org/all/20250925144934.150299-1-kartikey406@gmail.com * [PATCH] hugetlbfs: skip VMAs without shareable locks in hugetlb_vmdelete_list and found the following issue: WARNING: lock held when returning to user space in hugetlb_vmdelete_list Full report is available here: https://ci.syzbot.org/series/7d3a090c-ec8f-4d0c-8f7b-8797e63f1fde *** WARNING: lock held when returning to user space in hugetlb_vmdelete_list tree: torvalds URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux base: 07e27ad16399afcd693be20211b0dfae63e0615f arch: amd64 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 config: https://ci.syzbot.org/builds/06671e7c-eebd-4d11-9f0d-d9dae5637c0a/config C repro: https://ci.syzbot.org/findings/75fcdb87-67fc-45ee-a70d-3064e8c1126c/c_repro syz repro: https://ci.syzbot.org/findings/75fcdb87-67fc-45ee-a70d-3064e8c1126c/syz_repro ================================================ WARNING: lock held when returning to user space! syzkaller #0 Not tainted ------------------------------------------------ syz.0.17/5991 is leaving the kernel with locks still held! 1 lock held by syz.0.17/5991: #0: ffff88801f7dcce8 (&resv_map->rw_sema){+.+.}-{4:4}, at: hugetlb_vmdelete_list+0x67/0x230 fs/hugetlbfs/inode.c:490 *** If these findings have caused you to resend the series or submit a separate fix, please add the following tag to your commit message: Tested-by: syzbot@syzkaller.appspotmail.com --- This report is generated by a bot. It may contain errors. syzbot ci engineers can be reached at syzkaller@googlegroups.com.