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| author | Harald Freudenberger <freude@linux.vnet.ibm.com> | 2014-01-22 16:01:33 +0400 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2014-01-30 17:45:14 +0400 |
| commit | ee97dc7db4cbda33e4241c2d85b42d1835bc8a35 (patch) | |
| tree | 14232912769ade751a61a61984bf1aaf2dc2fb24 /arch/powerpc/oprofile/op_model_power4.c | |
| parent | adc3fcf1552b6e406d172fd9690bbd1395053d13 (diff) | |
| download | linux-ee97dc7db4cbda33e4241c2d85b42d1835bc8a35.tar.xz | |
crypto: s390 - fix des and des3_ede ctr concurrency issue
In s390 des and 3des ctr mode there is one preallocated page
used to speed up the en/decryption. This page is not protected
against concurrent usage and thus there is a potential of data
corruption with multiple threads.
The fix introduces locking/unlocking the ctr page and a slower
fallback solution at concurrency situations.
Cc: stable@vger.kernel.org
Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/powerpc/oprofile/op_model_power4.c')
0 files changed, 0 insertions, 0 deletions