Re: [tip:perf/urgent] perf: Treat attr.config as u64 in perf_swevent_init()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, 2013-04-15 at 03:42 -0700, tip-bot for Tommi Rantala wrote:
> Commit-ID:  8176cced706b5e5d15887584150764894e94e02f
> Gitweb:     http://git.kernel.org/tip/8176cced706b5e5d15887584150764894e94e02f
> Author:     Tommi Rantala <tt.rantala@xxxxxxxxx>
> AuthorDate: Sat, 13 Apr 2013 22:49:14 +0300
> Committer:  Ingo Molnar <mingo@xxxxxxxxxx>
> CommitDate: Mon, 15 Apr 2013 11:42:12 +0200
> 
> perf: Treat attr.config as u64 in perf_swevent_init()
> 
> Trinity discovered that we fail to check all 64 bits of
> attr.config passed by user space, resulting to out-of-bounds
> access of the perf_swevent_enabled array in
> sw_perf_event_destroy().

Gah, I so missed we could hide bits in the top word and then use them
in _destroy().

The alternative is of course to also truncate to int in _destroy(), but
yes keeping the natural size seems the best alternative.


--
To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Stable Commits]     [Linux Stable Kernel]     [Linux Kernel]     [Linux USB Devel]     [Linux Video &Media]     [Linux Audio Users]     [Yosemite News]     [Linux SCSI]

  Powered by Linux