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crypto: drbg - fix error return code in drbg_alloc_state()

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commit e0664ebcea6ac5e16da703409fb4bd61f8cd37d9 upstream.

Fix to return negative error code -ENOMEM from the kzalloc error handling
case instead of 0, as done elsewhere in this function.

Reported-by: Xiumei Mu <[email protected]>
Fixes: db07cd26ac ("crypto: drbg - add FIPS 140-2 CTRNG for noise source")
Cc: <[email protected]>
Signed-off-by: Wei Yongjun <[email protected]>
Reviewed-by: Stephan Mueller <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Wei Yongjun 2020-04-30 08:13:53 +00:00 • committed by Greg Kroah-Hartman
commit 977b89e1ab
1 changed files with 3 additions and 1 deletions
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4
crypto/drbg.c
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@ -1294,8 +1294,10 @@ static inline int drbg_alloc_state(struct drbg_state *drbg)
if (IS_ENABLED(CONFIG_CRYPTO_FIPS)) {
drbg->prev = kzalloc(drbg_sec_strength(drbg->core->flags),
GFP_KERNEL);
if (!drbg->prev)
if (!drbg->prev) {
ret = -ENOMEM;
goto fini;
}
drbg->fips_primed = false;
}