All of
 help / color / mirror / Atom feed
From: Jiri Pirko <>
To: syzbot <>
Subject: Re: KASAN: use-after-free Read in __cfg8NUM_wpan_dev_from_attrs
Date: Mon, 7 Oct 2019 16:42:45 +0200	[thread overview]
Message-ID: <20191007144245.GC2326@nanopsycho> (raw)
In-Reply-To: <>

Mon, Oct 07, 2019 at 04:19:09PM CEST, wrote:
>syzbot found the following crash on:
>HEAD commit:    056ddc38 Merge branch 'stmmac-next'
>git tree:       net-next
>console output:
>kernel config:
>dashboard link:
>compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
>syz repro:
>C reproducer:
>The bug was bisected to:
>commit 75cdbdd089003cd53560ff87b690ae911fa7df8e
>Author: Jiri Pirko <>
>Date:   Sat Oct 5 18:04:37 2019 +0000
>    net: ieee802154: have genetlink code to parse the attrs during dumpit
>bisection log:
>final crash:
>console output:
>IMPORTANT: if you fix the bug, please add the following tag to the commit:
>Fixes: 75cdbdd08900 ("net: ieee802154: have genetlink code to parse the attrs
>during dumpit")
>netlink: 'syz-executor134': attribute type 6 has an invalid length.
>BUG: KASAN: use-after-free in nla_memcpy+0xa2/0xb0 lib/nlattr.c:572

I'm on this.

      reply	other threads:[~2019-10-07 14:42 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-07 14:19 KASAN: use-after-free Read in __cfg8NUM_wpan_dev_from_attrs syzbot
2019-10-07 14:42 ` Jiri Pirko [this message]

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:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20191007144245.GC2326@nanopsycho \ \ \ \ \ \ \ \ \ \ \

* 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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.