Re: [PATCH V3 0/2] [BUGFIX] virtio/console: Fix two bugs ofsplice_write

From: Amit Shah
Date: Mon Jul 22 2013 - 02:34:06 EST


On (Mon) 22 Jul 2013 [13:00:43], Yoshihiro YUNOMAE wrote:
> Hi,
>
> This patch set fixes two bugs of splice_write in the virtio-console driver.
>
> [BUG1] Although pipe->nrbufs is empty, the driver tries to do splice_write.
> => This induces oops in sg_init_table().
>
> [BUG2] No lock for competition of splice_write.
> => This induces oops in splice_from_pipe_feed() by bug of any user
> application.
>
> These reports are written in each patch.
>
> Changes in V2:
> - Fix a locking problem for error
>
> Changes in V3:
> - Add Reviewed-by lines and stable@ line in sign-off area

Thank you!

Rusty, please pick this up.

Amit
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