Message ID | 2551009.mvXUDI8C0e@positron.chronox.de |
---|---|
State | Superseded |
Headers | show |
Series | [v2] crypto: DRBG - always try to free Jitter RNG instance | expand |
diff --git a/crypto/drbg.c b/crypto/drbg.c index 37526eb8c5d5..8a0f16950144 100644 --- a/crypto/drbg.c +++ b/crypto/drbg.c @@ -1631,6 +1631,9 @@ static int drbg_uninstantiate(struct drbg_state *drbg) if (drbg->random_ready.func) { del_random_ready_callback(&drbg->random_ready); cancel_work_sync(&drbg->seed_work); + } + + if (!IS_ERR_OR_NULL(drbg->jent)) { crypto_free_rng(drbg->jent); drbg->jent = NULL; }
The Jitter RNG is unconditionally allocated as a seed source follwoing the patch 97f2650e5040. Thus, the instance must always be deallocated. Reported-by: syzbot+2e635807decef724a1fa@syzkaller.appspotmail.com Fixes: 97f2650e5040 ("crypto: drbg - always seeded with SP800-90B ...") Signed-off-by: Stephan Mueller <smueller@chronox.de> --- crypto/drbg.c | 3 +++ 1 file changed, 3 insertions(+)