[lkml]   [2015]   [Apr]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH v4] crypto: remove instance when test failed
On Thu, Apr 09, 2015 at 12:09:55PM +0200, Stephan Mueller wrote:
> A cipher instance is added to the list of instances unconditionally
> regardless of whether the associated test failed. However, a failed
> test implies that during another lookup, the cipher instance will
> be added to the list again as it will not be found by the lookup
> code.
> That means that the list can be filled up with instances whose tests
> failed.
> Note: tests only fail in reality in FIPS mode when a cipher is not
> marked as fips_allowed=1. This can be seen with cmac(des3_ede) that does
> not have a fips_allowed=1. When allocating the cipher, the allocation
> fails with -ENOENT due to the missing fips_allowed=1 flag (which
> causes the testmgr to return EINVAL). Yet, the instance of
> cmac(des3_ede) is shown in /proc/crypto. Allocating the cipher again
> fails again, but a 2nd instance is listed in /proc/crypto.
> The patch simply de-registers the instance when the testing failed.
> Signed-off-by: Stephan Mueller <>

Patch applied. Thanks a lot!
Email: Herbert Xu <>
Home Page:
PGP Key:

 \ /
  Last update: 2015-04-10 16:21    [W:0.039 / U:5.824 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site