Messages in this thread Patch in this message | | | From | Eric Biggers <> | Subject | [PATCH] random: fix the RNDRESEEDCRNG ioctl | Date | Tue, 15 Sep 2020 21:19:08 -0700 |
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From: Eric Biggers <ebiggers@google.com>
The RNDRESEEDCRNG ioctl reseeds the primary_crng from itself, which doesn't make sense. Reseed it from the input_pool instead.
Fixes: d848e5f8e1eb ("random: add new ioctl RNDRESEEDCRNG") Cc: stable@vger.kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> --- drivers/char/random.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/char/random.c b/drivers/char/random.c index d20ba1b104ca3..a8b9e66f41435 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -1973,7 +1973,7 @@ static long random_ioctl(struct file *f, unsigned int cmd, unsigned long arg) return -EPERM; if (crng_init < 2) return -ENODATA; - crng_reseed(&primary_crng, NULL); + crng_reseed(&primary_crng, &input_pool); crng_global_init_time = jiffies - 1; return 0; default: -- 2.28.0
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