Re: [syzbot] [sctp?] [reiserfs?] KMSAN: uninit-value in __schedule (4)

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On Thu, Sep 14, 2023 at 5:25 PM Marcelo Ricardo Leitner
<marcelo.leitner@xxxxxxxxx> wrote:
> On Tue, Sep 05, 2023 at 10:55:01AM -0700, syzbot wrote:
> > Hello,
> >
> > syzbot found the following issue on:
> >
> > HEAD commit:    a47fc304d2b6 Add linux-next specific files for 20230831
> > git tree:       linux-next
> > console output:
> > kernel config:
> > dashboard link:
> > compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
> > syz repro:
> > C reproducer:
> Not sure why sctp got tagged here. I could not find anything network
> related on this reproducer or console output.

I am afraid this is the effect of reports from different tools being
clustered together:
The relevant KMSAN report can be viewed on the dashboard: -
that's where sctp was deduced from.

I suspect there's still nothing specific to sctp though: looks like
schedule_debug() somehow accidentally reads past the end of the task

>   Marcelo
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