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| author | Milan Broz <gmazyland@gmail.com> | 2020-01-06 12:11:47 +0300 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2020-01-15 04:22:47 +0300 |
| commit | 4ea9471fbd1addb25a4d269991dc724e200ca5b5 (patch) | |
| tree | fd553b836f98ce14f66ca7a0b70a75f96f93d067 /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | bbb1658461ac85ef7e0563bb11283f94ea5eb651 (diff) | |
| download | linux-4ea9471fbd1addb25a4d269991dc724e200ca5b5.tar.xz | |
dm crypt: fix benbi IV constructor crash if used in authenticated mode
If benbi IV is used in AEAD construction, for example:
cryptsetup luksFormat <device> --cipher twofish-xts-benbi --key-size 512 --integrity=hmac-sha256
the constructor uses wrong skcipher function and crashes:
BUG: kernel NULL pointer dereference, address: 00000014
...
EIP: crypt_iv_benbi_ctr+0x15/0x70 [dm_crypt]
Call Trace:
? crypt_subkey_size+0x20/0x20 [dm_crypt]
crypt_ctr+0x567/0xfc0 [dm_crypt]
dm_table_add_target+0x15f/0x340 [dm_mod]
Fix this by properly using crypt_aead_blocksize() in this case.
Fixes: ef43aa38063a6 ("dm crypt: add cryptographic data integrity protection (authenticated encryption)")
Cc: stable@vger.kernel.org # v4.12+
Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=941051
Reported-by: Jerad Simpson <jbsimpson@gmail.com>
Signed-off-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions