Re: general protection fault in xsk_map_update_elem

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On 2019-09-24 00:50, Daniel Borkmann wrote:
On Mon, Sep 23, 2019 at 08:49:11AM -0700, syzbot wrote:
Hello,

syzbot found the following crash on:

HEAD commit:    b41dae06 Merge tag 'xfs-5.4-merge-7' of git://git.kernel.o..
git tree:       net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=130b25ad600000
kernel config:  https://syzkaller.appspot.com/x/.config?x=dfcf592db22b9132
dashboard link: https://syzkaller.appspot.com/bug?extid=491c1b7565ba9069ecae
compiler:       gcc (GCC) 9.0.0 20181231 (experimental)
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=155a0c29600000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=172bf6d9600000

The bug was bisected to:

commit 0402acd683c678874df6bdbc23530ca07ea19353
Author: Björn Töpel <bjorn.topel@xxxxxxxxx>
Date:   Thu Aug 15 09:30:13 2019 +0000

     xsk: remove AF_XDP socket from map when the socket is released

Bjorn, PTAL, thanks.


I'm on it! Thanks for the poke.



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