The aes-ctr mode used one preallocated page without any concurrency protection. When multiple threads run aes-ctr encryption or decryption this could lead to data corruption. The patch introduces locking for the preallocated page and alternatively allocating and freeing of an temp page in concurrency situations. Signed-off-by: Harald Freudenberger <freude@xxxxxxxxxxxxxxxxxx> Harald Freudenberger (1): s390/crypto: fix aes ctr concurrency issue arch/s390/crypto/aes_s390.c | 55 ++++++++++++++++++++++++++++++++---------- 1 files changed, 42 insertions(+), 13 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
