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| author |   Gilad Ben-Yossef <gilad@benyossef.com> | 2017-05-18 13:47:25 +0300 |
|---|---|---|
| committer |   Mike Snitzer <snitzer@redhat.com> | 2017-05-22 13:49:03 -0400 |
| commit | f52236e0b0a0820e938e16a776309e76b7bd6c43 (patch) | |
| tree | ca0094e3a1a789be5f5346c79884927e5e43e264 /drivers/md/dm-integrity.c | |
| parent | Linux 4.12-rc2 (diff) | |
| download | linux-dev-f52236e0b0a0820e938e16a776309e76b7bd6c43.tar.xz linux-dev-f52236e0b0a0820e938e16a776309e76b7bd6c43.zip | |
dm verity: fix no salt use case
DM-Verity has an (undocumented) mode where no salt is used. This was
never handled directly by the DM-Verity code, instead working due to the
fact that calling crypto_shash_update() with a zero length data is an
implicit noop.
This is no longer the case now that we have switched to
crypto_ahash_update(). Fix the issue by introducing explicit handling
of the no salt use case to DM-Verity.
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Reported-by: Marian Csontos <mcsontos@redhat.com>
Fixes: d1ac3ff ("dm verity: switch to using asynchronous hash crypto API")
Tested-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-integrity.c')
0 files changed, 0 insertions, 0 deletions