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| author | Harald Freudenberger <freude@linux.vnet.ibm.com> | 2014-01-16 15:01:11 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-20 19:07:58 (GMT) |
| commit | aa1eef2bdc5187968849e5c78d8d07e567d4889a (patch) | |
| tree | 248b836a1e0c55d83c4d6ff4a8cd1b42b4c694a6 /crypto/md4.c | |
| parent | 52a0aaf1aac536c646da7d9b4418eb6578e34769 (diff) | |
| download | linux-fsl-qoriq-aa1eef2bdc5187968849e5c78d8d07e567d4889a.tar.xz | |
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'crypto/md4.c')
0 files changed, 0 insertions, 0 deletions