Messages in this thread | | | Date | Tue, 9 Oct 2018 16:05:40 +0200 | From | Petr Mladek <> | Subject | Re: [PATCH 2/3] lib/vsprintf: Hash legacy clock addresses |
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On Mon 2018-10-08 13:05:03, Geert Uytterhoeven wrote: > On platforms using the Common Clock Framework, "%pC" prints the clock's > name. On legacy platforms, it prints the unhashed clock's address, > potentially leaking sensitive information regarding the kernel layout in > memory. > > Avoid this leak by printing the hashed address instead. To distinguish > between clocks, a 32-bit unique identifier is as good as an actual > pointer value. > > Fixes: ad67b74d2469d9b8 ("printk: hash addresses printed with %p") > Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
It makes sense.
Reviewed-by: Petr Mladek <pmladek@suse.com>
Best Regards, Petr
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