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Code Issues Releases Activity

Check key size for rijndael, as invalid key size can lead to kernel panic.

Browse Source 
It checked other algorithms against this bug and it seems they aren't
affected.

Reported by:	Mike Tancsa <mike@sentex.net>
PR:		i386/84860
Reviewed by:	phk, cperciva(x2)
This commit is contained in:
Pawel Jakub Dawidek 2005-08-16 18:59:00 +00:00
parent 207377b25e
commit 36c51ae068
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=149143
2 changed files with 4 additions and 0 deletions
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2
sys/crypto/rijndael/rijndael-alg-fst.c
View File

@ -734,6 +734,8 @@ int rijndaelKeySetupEnc(u32 rk[/*4*(Nr + 1)*/], const u8 cipherKey[], int keyBit
int i = 0;
u32 temp;
KASSERT(keyBits == 128 || keyBits == 192 || keyBits == 256,
("Invalid key size (%d).", keyBits));
rk[0] = GETU32(cipherKey );
rk[1] = GETU32(cipherKey + 4);
rk[2] = GETU32(cipherKey + 8);

2
sys/opencrypto/xform.c
View File

@ -512,6 +512,8 @@ rijndael128_setkey(u_int8_t **sched, u_int8_t *key, int len)
{
int err;
if (len != 16 && len != 24 && len != 32)
return (EINVAL);
MALLOC(*sched, u_int8_t *, sizeof(rijndael_ctx), M_CRYPTO_DATA,
M_NOWAIT|M_ZERO);
if (*sched != NULL) {