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SubjectRe: [PATCH v2 2/3] lib/vsprintf: Hash legacy clock addresses
On Thu 2018-10-11 10:42:48, 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 <>
> Reviewed-by: Petr Mladek <>

I have pushed this patch into printk.git,
branch for-4.20-vsprintf-hash-fixes.

Best Regards,

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