[lkml]   [2018]   [Oct]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH v2 3/3] lib/vsprintf: Hash printed address for netdev bits fallback
On Thu 2018-10-11 10:42:49, Geert Uytterhoeven wrote:
> The handler for "%pN" falls back to printing the raw pointer value when
> using a different format than the (sole supported) special format
> "%pNF", potentially leaking sensitive information regarding the kernel
> layout in memory.
> Avoid this leak by printing the hashed address instead.
> Note that there are no in-tree users of the fallback.
> 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,

 \ /
  Last update: 2018-10-12 12:41    [W:0.099 / U:0.224 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site