diff options
| author | Harald Freudenberger <freude@linux.vnet.ibm.com> | 2014-01-16 16:01:11 +0100 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2014-04-02 00:58:46 +0100 |
| commit | fc211c9a572bba86c7d37c390c6fb3a9ff052f33 (patch) | |
| tree | df5029ad609ab3c3aa5e257cc2d7920078388cdb /mm | |
| parent | 501ec62ed39a7232827d0c698c375d5294bda1ba (diff) | |
crypto: s390 - fix concurrency issue in aes-ctr mode
commit 0519e9ad89e5cd6e6b08398f57c6a71d9580564c upstream.
The aes-ctr mode uses one preallocated page without any concurrency
protection. When multiple threads run aes-ctr encryption or decryption
this can lead to data corruption.
The patch introduces locking for the page and a fallback solution with
slower en/decryption performance in concurrency situations.
Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions