From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f197.google.com (mail-oi1-f197.google.com [209.85.167.197]) (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 BEF3634A76B for ; Fri, 17 Apr 2026 16:22:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776442924; cv=none; b=c9oXKAyeiZhllZtPYESHCKI8X6IUM6prgKyZSs6fozUyZNRI81w/oHhnDqkvMqNVBMqsr/pDl9Kt9ar1/UWk+inqbBUxTcwvbIdQR7gjXAu3QK51m61yMJ0vHJGigm3Lz+3zRhGVrNHcbnJMCUZlQ/sKtwMYAanFvybCKDMXkqE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776442924; c=relaxed/simple; bh=6NEosIqa4ojdJ36NQjW1O/wGNrD8VTETIqrJXuKppD8=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=lm2FNP5aWbQJFypYr/sREOpIG97yt2PpGzXhPqccEO/zqy64jPJBY2V9v20RWXy1ucH7MrULp58nsNPP3trl4puOlqvOGgBFop7ELCYa8EcU105kjJRtS/9X+Rlob8V1qd2fTfYV6wXFHrvRke+h5g/8fM2cUL4aT/TXNfLGKAw= 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=209.85.167.197 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-oi1-f197.google.com with SMTP id 5614622812f47-464a0af43deso1200476b6e.3 for ; Fri, 17 Apr 2026 09:22:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1776442922; x=1777047722; 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=2FL2FOXX1/mkHh7oeBXMxVbSD6AzVq+rw0Cj/cnJD/I=; b=n32mJ0TqwSzF6hR3IibCPXgTApORtqCrkCBfWeZgi5otWKx/OWFYZmVGy+nLYl8Z/t 4PcOAVSpMdvhJWpFyH8DlKApVNHtzR6SnMaEIyeTQYqaAlffqri6QplUdHUn3TUCm+P2 gxJzuB5o8JJ2yEUCoq608HpcfVxecb9Vi+MitCmajJR/u0vSBVsovXbmDE3EA8diAXq+ HOneHZ8IjjNDHO0q7Fmyj/lN0yHPjKK2TifkaExXksEZDlJoFwmsDF/1wZXNQ1t164Rf SjPNwRJn8KRrmEUwQeqH/M1WxVbYHuCDKOUBkywFxEYUHnFBOxjjn9iopb7fCHAv/9V5 k/lQ== X-Gm-Message-State: AOJu0YwTWD5eaQ1bSIdKD71K7crWaVRkd/RNbrFM0c0dOlhc1u/QMLlU NFnJYbwCI6fRRTpMl5ZDpR/b9LNg2IM5rtD3r2Uh7GEGWFI/ZzlYhIEns4vtNR2ZIXLk7XcUAYc jzAyzoRNHHn2WbVbHjXX0X6jZxGBusUjmVoVRS07nKLczbqYg83otdcDZvvc= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:2906:b0:67f:9bb6:95dc with SMTP id 006d021491bc7-69462ef0ec3mr1827403eaf.29.1776442921862; Fri, 17 Apr 2026 09:22:01 -0700 (PDT) Date: Fri, 17 Apr 2026 09:22:01 -0700 In-Reply-To: <0000000000008bbf19061531d31a@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69e25e29.a00a0220.1bd0ca.000f.GAE@google.com> Subject: Forwarded: Re: [syzbot] kernel BUG in jffs2_del_ino_cache From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com 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] kernel BUG in jffs2_del_ino_cache Author: tristmd@gmail.com #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master >>From 2e46a94bb2b935dcf0b09aa5f20ff638124cb395 Mon Sep 17 00:00:00 2001 From: Tristan Madani Date: Fri, 17 Apr 2026 16:15:21 +0000 Subject: [PATCH] jffs2: replace BUG_ON with warning in jffs2_del_ino_cache() jffs2_del_ino_cache() uses BUG_ON(old->xref) which triggers a kernel panic when called with an inode cache entry that still has xattr references. On corrupted filesystems this is a recoverable condition. Replace with WARN_ON_ONCE to log the issue without crashing. Reported-by: syzbot+44664704c1494ad5f7a0@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=44664704c1494ad5f7a0 Signed-off-by: Tristan Madani --- fs/jffs2/nodelist.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/jffs2/nodelist.c b/fs/jffs2/nodelist.c index b86c78d..c1dc753 100644 --- a/fs/jffs2/nodelist.c +++ b/fs/jffs2/nodelist.c @@ -459,7 +459,7 @@ void jffs2_del_ino_cache(struct jffs2_sb_info *c, struct jffs2_inode_cache *old) struct jffs2_inode_cache **prev; #ifdef CONFIG_JFFS2_FS_XATTR - BUG_ON(old->xref); + WARN_ON_ONCE(old->xref); #endif dbg_inocache("del %p (ino #%u)\n", old, old->ino); spin_lock(&c->inocache_lock); -- 2.47.3