From: Wei Zhao <wallyzhao@gmail.com>
To: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Cc: kernel test robot <rong.a.chen@intel.com>,
vyasevich@gmail.com, nhorman@tuxdriver.com, davem@davemloft.net,
linux-sctp@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, wally.zhao@nokia-sbell.com,
lkp@lists.01.org
Subject: Re: [sctp] 327fecdaf3: BUG:kernel_NULL_pointer_dereference,address
Date: Mon, 4 Nov 2019 22:14:00 +0800 [thread overview]
Message-ID: <CAFRmqq6vNg5sBYp7voT4SoVR+i+L8fDqUUZOF68cRdcKkQcZmw@mail.gmail.com> (raw)
In-Reply-To: <20191104132508.GA53856@localhost.localdomain>
On 11/4/19, Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> wrote:
> On Mon, Nov 04, 2019 at 04:46:35PM +0800, kernel test robot wrote:
>> [ 35.312661] BUG: kernel NULL pointer dereference, address:
>> 00000000000005d8
>> [ 35.316225] #PF: supervisor read access in kernel mode
>> [ 35.319178] #PF: error_code(0x0000) - not-present page
>> [ 35.322078] PGD 800000021b569067 P4D 800000021b569067 PUD 21b688067 PMD
>> 0
>> [ 35.325629] Oops: 0000 [#1] SMP PTI
>> [ 35.327965] CPU: 0 PID: 3148 Comm: trinity-c5 Not tainted
>> 5.4.0-rc3-01107-g327fecdaf39ab #12
>> [ 35.332863] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
>> 1.10.2-1 04/01/2014
>> [ 35.337932] RIP: 0010:sctp_packet_transmit+0x767/0x822
>
> Right, as asoc can be NULL by then. (per the check on it a few lines
> before the change here).
Yes, apologize for missing the NULL check (Actually I realized some
further check is need to correctly identify the first in flight
packet, as outstanding_bytes has already been increased by this first
in flight packet itself before getting into sctp_packet_transmit).
Anyway, I think I do not need further action, as the patch is anyway
not going to be merged, the 0day robot picks up the patch from the
mail list directly instead of git repo, right?
Thanks a lot,
Wally
>
> Marcelo
>
next prev parent reply other threads:[~2019-11-04 14:14 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-30 16:07 [PATCH] sctp: set ooo_okay properly for Transmit Packet Steering Wally Zhao
2019-10-30 13:24 ` Marcelo Ricardo Leitner
2019-10-30 15:54 ` Wei Zhao
2019-10-30 18:35 ` Marcelo Ricardo Leitner
2019-10-30 19:03 ` Eric Dumazet
2019-10-31 1:11 ` Wei Zhao
2019-11-04 8:46 ` [sctp] 327fecdaf3: BUG:kernel_NULL_pointer_dereference,address kernel test robot
2019-11-04 13:25 ` Marcelo Ricardo Leitner
2019-11-04 14:14 ` Wei Zhao [this message]
2019-11-04 14:49 ` Marcelo Ricardo Leitner
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CAFRmqq6vNg5sBYp7voT4SoVR+i+L8fDqUUZOF68cRdcKkQcZmw@mail.gmail.com \
--to=wallyzhao@gmail.com \
--cc=davem@davemloft.net \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-sctp@vger.kernel.org \
--cc=lkp@lists.01.org \
--cc=marcelo.leitner@gmail.com \
--cc=netdev@vger.kernel.org \
--cc=nhorman@tuxdriver.com \
--cc=rong.a.chen@intel.com \
--cc=vyasevich@gmail.com \
--cc=wally.zhao@nokia-sbell.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).