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Date:   Wed, 22 Jan 2020 09:48:47 +0200
From: (Jouni Högander)
To:     Greg Kroah-Hartman <>
Cc:     Lukas Bulwahn <>,
        Naresh Kamboju <>,
        open list <>,
        Linus Torvalds <>,
        Andrew Morton <>,
        Guenter Roeck <>,
        Shuah Khan <>,,
        Ben Hutchings <>,,
        linux- stable <>,
        Netdev <>,
        Al Viro <>,, Eric Dumazet <>,
        "David S. Miller" <>
Subject: Re: [PATCH 4.19 000/306] 4.19.87-stable review

Greg Kroah-Hartman <> writes:
>> > Now queued up, I'll push out -rc2 versions with this fix.
>> >
>> > greg k-h
>> We have also been informed about another regression these two commits
>> are causing:
>> I suggest to drop these two patches from this queue, and give us a
>> week to shake out the regressions of the change, and once ready, we
>> can include the complete set of fixes to stable (probably in a week or
>> two).
> Ok, thanks for the information, I've now dropped them from all of the
> queues that had them in them.
> greg k-h

I have now run more extensive Syzkaller testing on following patches:

cb626bf566eb net-sysfs: Fix reference count leak
ddd9b5e3e765 net-sysfs: Call dev_hold always in rx_queue_add_kobject
e0b60903b434 net-sysfs: Call dev_hold always in netdev_queue_add_kobje
48a322b6f996 net-sysfs: fix netdev_queue_add_kobject() breakage
b8eb718348b8 net-sysfs: Fix reference count leak in rx|netdev_queue_add_kobject

These patches are fixing couple of memory leaks including this one found
by Syzbot:

I can reproduce these memory leaks in following stable branches: 4.14,
4.19, and 5.4.

These are all now merged into net/master tree and based on my testing
they are ready to be taken into stable branches as well.

Best Regards,

Jouni Högander

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