diff options
| author | Eric Biggers <[email protected]> | 2021-01-12 11:28:18 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2021-02-04 16:59:02 +0100 |
| commit | 11a0b5e0ec8c13bef06f7414f9e914506140d5cb (patch) | |
| tree | 7a023fe157df59956311db2a0c7cc673ea602c04 | |
| parent | a74ab2ed0def52a993d0cbd9df9d1c4de33c6fbd (diff) | |
random: fix the RNDRESEEDCRNG ioctl
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: [email protected]
Cc: [email protected]
Cc: Andy Lutomirski <[email protected]>
Cc: Jann Horn <[email protected]>
Cc: Theodore Ts'o <[email protected]>
Reviewed-by: Jann Horn <[email protected]>
Acked-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Eric Biggers <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
| -rw-r--r-- | drivers/char/random.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c index 5f3b8ac9d97b..a894c0559a8c 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -1972,7 +1972,7 @@ 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: |