This is a note to let you know that I've just added the patch titled
crypto: drbg - Only fail when jent is unavailable in FIPS mode
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
crypto-drbg-only-fail-when-jent-is-unavailable-in-fi.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e7e2b8502a962053fe4b709a54dc223aabd12171
Author: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Date: Tue Mar 28 11:35:23 2023 +0800
crypto: drbg - Only fail when jent is unavailable in FIPS mode
[ Upstream commit 686cd976b6ddedeeb1a1fb09ba53a891d3cc9a03 ]
When jent initialisation fails for any reason other than ENOENT,
the entire drbg fails to initialise, even when we're not in FIPS
mode. This is wrong because we can still use the kernel RNG when
we're not in FIPS mode.
Change it so that it only fails when we are in FIPS mode.
Fixes: 57225e679788 ("crypto: drbg - Use callback API for random readiness")
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Reviewed-by: Stephan Mueller <smueller@xxxxxxxxxx>
Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/crypto/drbg.c b/crypto/drbg.c
index c89e26e677404..44b0a7f624021 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -1520,7 +1520,7 @@ static int drbg_prepare_hrng(struct drbg_state *drbg)
const int err = PTR_ERR(drbg->jent);
drbg->jent = NULL;
- if (fips_enabled || err != -ENOENT)
+ if (fips_enabled)
return err;
pr_info("DRBG: Continuing without Jitter RNG\n");
}
