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 4832A1BA86C for ; Fri, 15 Nov 2024 14:11:13 +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=1731679875; cv=none; b=fkM+LUr5deNG4sYSu0NEsGnPWxzdfIjGimfA59Vsd7YXyyquyTTHBlwxPB+mAq5dllw3ov0u38Uh6Gbpu1ByhMOoP0GnvGg3+XOuJqJ/49TOME8AK1+YTSijKsSyWugA1XpnLMWch56jqtZESdHjI/pmQx3xbYOheU1U4hGC1C4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731679875; c=relaxed/simple; bh=lv3007Jwe6szzwK3Ineb2yF+RPJbDYTYHAGqj80Akw4=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To:Cc: Content-Type; b=sbgHwdfZo+LxiqheXiN1juYSCkEwwJgqzivnJOyASTDFmzeocqmeiiNKu4F8MfuhEIlnU8cs5Zp6d21Cl2Y+VF2wUmOu3fl0RAt5ZVwP1NCxIpSycwGuypFERe18FUyzSJh3PDyXTZHvW/dD/PoK/hAbXk+GJjqNO8eot8MvAFk= 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-3a6b963ca02so7655535ab.2 for ; Fri, 15 Nov 2024 06:11:13 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731679873; x=1732284673; 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=ul7J8wvAu2BZqJVFr4I3MeNSMoxisq4JfNHuKXm1IHU=; b=Zb6bLiBynIQgsgQesDfWwUnLYHXHGZgijw1s6EIvMjz4uT/Fbk4nMLoUPasKMx/DQD ZWaMU2D8LoWtDzg2erbZUrBbsirE3EvMtWqvYx838vAo0qrIQGrNP0Wq+bvzIbJopW40 XxneLqgMW0en24r+xBvXI5HqPkjOHSVigfGRnc4nepq0dRCg9n6cAOVRAMiT+XYf8xDg THyngjlCkURMj0WCIpuEI5S0oNAkAhaeQb5fKvr3yzUb99Fq+zfUOUrzLZwh3wbstS3/ 299cpyR01ryrIbbwF9obFqcvgXa9Mb2N1V5M6ZzrW5gYitbqzuBi4Fw8gVq03LVLJvjw HnMg== X-Forwarded-Encrypted: i=1; AJvYcCXl9v9DjwHR9WLAiH1caWmuEmrcASF8xjFFFvU5ZVBKdj+PTnsAdMgAk7MwAy0k/xtobc8+l8fU50foCjY=@vger.kernel.org X-Gm-Message-State: AOJu0YzBLsJ0+yuSfT9LHOem/FL8inVD3VBEus9L70FTvSgbLv6aeyet K+8suDesHGZItu+kTEZ4tyJ25z/n/bdOltTGQwbDVlETieYSmEAVqoodSls3ilpM+hJnQ5voa6K c2APpjLg/H2IhvL9jAXo8fz8Zp9iVKKdKRZajhIqk0Al8K+GQKM20e70= X-Google-Smtp-Source: AGHT+IFfrju2aNBPaXrGdqtc4H2UqZc/ckvDgjgC8JieUc/1cskWfs9fHqxKMP4Aa5csTyASxlWycL3ozXfcjBA9xOgBvNavQkkv Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:218e:b0:3a4:e4d0:9051 with SMTP id e9e14a558f8ab-3a74808cc3emr30100305ab.24.1731679873195; Fri, 15 Nov 2024 06:11:13 -0800 (PST) Date: Fri, 15 Nov 2024 06:11:13 -0800 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67375681.050a0220.2a2fcc.007d.GAE@google.com> Subject: Re: [Linux Kernel Bug] memory leak in ubi_attach From: syzbot To: sudumbha@cisco.com Cc: sudumbha@cisco.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" > #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 8cf0b93919e13d1e8d4466eb4080a4c4d9d66d7b This crash does not have a reproducer. I cannot test it. > > ---------------------------------------------------------------------------------- > diff --git a/mm/slub.c b/mm/slub.c > index 5b832512044e..dc77128358d8 100644 > --- a/mm/slub.c > +++ b/mm/slub.c > @@ -7098,8 +7098,11 @@ static int sysfs_slab_add(struct kmem_cache *s) > > s->kobj.kset = kset; > err = kobject_init_and_add(&s->kobj, &slab_ktype, NULL, "%s", name); > - if (err) > + if (err) { > + kfree_const(s->kobj.name); > + s->kobj.name = NULL; > goto out; > + } > > err = sysfs_create_group(&s->kobj, &slab_attr_group); > if (err) > -- > 2.42.0 > > ---------------------------------------------------------------------------------- > > Thanks & regards, > Sudhir >