A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 11:11:45 -04:00
Code Issues Projects Releases Packages Wiki Activity

crypto: asym_tpm: correct zero out potential secrets

Browse source 
commit f93274ef0fe972c120c96b3207f8fce376231a60 upstream.

The function derive_pub_key() should be calling memzero_explicit()
instead of memset() in case the complier decides to optimize away the
call to memset() because it "knows" no one is going to touch the memory
anymore.

Cc: stable <[email protected]>
Reported-by: Ilil Blum Shem-Tov <[email protected]>
Tested-by: Ilil Blum Shem-Tov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Greg Kroah-Hartman 2020-12-04 09:01:36 +01:00
commit 867c10a03f
1 changed files with 1 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
crypto/asymmetric_keys/asym_tpm.c
View file

@ -370,7 +370,7 @@ static uint32_t derive_pub_key(const void *pub_key, uint32_t len, uint8_t *buf)
memcpy(cur, e, sizeof(e));
cur += sizeof(e);
/* Zero parameters to satisfy set_pub_key ABI. */
memset(cur, 0, SETKEY_PARAMS_SIZE);
memzero_explicit(cur, SETKEY_PARAMS_SIZE);
return cur - buf;
}