On Tue, 2 Jul 2019 13:30:07 +0800 Jason Wang wrote:
> On 2019/7/2 Eric Biggers wrote:
> > [This email was generated by a script.  Let me know if you have any 
> > suggestions
> > to make it better, or if you want it re-generated with the latest status.]
> >
> > Of the currently open syzbot reports against the upstream kernel, I've 
> > manually
> > marked 2 of them as possibly being bugs in the vhost subsystem.  I've listed
> > these reports below, sorted by an algorithm that tries to list first the 
> > reports
> > most likely to be still valid, important, and actionable.
> >
> > Of these 2 bugs, 1 was seen in mainline in the last week.
> >
> > If you believe a bug is no longer valid, please close the syzbot report by
> > sending a '#syz fix', '#syz dup', or '#syz invalid' command in reply to the
> > original thread, as explained at https://goo.gl/tpsmEJ#status
> >
> > If you believe I misattributed a bug to the vhost subsystem, please let me 
> > know,
> > and if possible forward the report to the correct people or mailing list.
> >
> > Here are the bugs:
> >
> > --------------------------------------------------------------------------------
> > Title:              memory leak in vhost_net_ioctl
> > Last occurred:      0 days ago
> > Reported:           26 days ago
> > Branches:           Mainline
> > Dashboard link:     
> > https://syzkaller.appspot.com/bug?id=3D12ba349d7e26ccfe95317bc376e812ebbae2ee0f
> > Original thread:    
> > https://lkml.kernel.org/lkml/000000000000188da1058a9c2...@google.com/T/#u
> >
> > This bug has a C reproducer.
> >
> > The original thread for this bug has received 4 replies; the last was 17 
> > days
> > ago.
> >
> > If you fix this bug, please add the following tag to the commit:
> >      Reported-by: syzbot+0789f0c7e45efd7bb...@syzkaller.appspotmail.com
> >
> > If you send any email or patch for this bug, please consider replying to the
> > original thread.  For the git send-email command to use, or tips on how to 
> > reply
> > if the thread isn't in your mailbox, see the "Reply instructions" at
> > https://lkml.kernel.org/r/000000000000188da1058a9c2...@google.com
> > 
> Cc Hillf who should had a fix for this.
> 
It could not be a fix in any form without the great idea you shared, Jason:)
while reviewing the first version.

> Hillf, would you please post a formal patch for this? (for -net)
> 
And feel free to do this thing appropriate or that thing for fixing the
reported memory leak before I can earn a Tested-by.

--
Hillf

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