diff options
| author | Harald Freudenberger <freude@linux.vnet.ibm.com> | 2018-03-01 16:40:00 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-03-18 23:02:05 -0700 |
| commit | c7260ca335a09fb186885c80bd6022318c10c541 (patch) | |
| tree | 4fb3fff6dc73c723a785ebbd80be373ad6ed076d /arch/s390/Kconfig | |
| parent | c9f52c2ddb285738219ff2231a96ba3c8f5bd746 (diff) | |
| download | linux-c7260ca335a09fb186885c80bd6022318c10c541.tar.bz2 | |
s390/crypto: Fix kernel crash on aes_s390 module remove.
A kernel crash occurs when the aes_s390 kernel module is
removed on machines < z14. This only happens on kernel
version 4.15 and higher on machines not supporting MSA 8.
The reason for the crash is a unconditional
crypto_unregister_aead() invocation where no previous
crypto_register_aead() had been called. The fix now
remembers if there has been a successful registration and
only then calls the unregister function upon kernel module
remove.
The code now crashing has been introduced with
"bf7fa03 s390/crypto: add s390 platform specific aes gcm support."
Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/Kconfig')
0 files changed, 0 insertions, 0 deletions