diff options
| author | Andrew Lutomirski <luto@kernel.org> | 2016-10-17 10:06:27 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-18 10:48:36 +0100 |
| commit | 5be7e6b48b21526550a494ae20ded2191caa7b84 (patch) | |
| tree | 873ded2ff4459545a8d10abad20d622270c2ff37 /block | |
| parent | ba8580f6cf0357ca058b6822dcc13ef172018012 (diff) | |
hwrng: core - Don't use a stack buffer in add_early_randomness()
commit 6d4952d9d9d4dc2bb9c0255d95a09405a1e958f7 upstream.
hw_random carefully avoids using a stack buffer except in
add_early_randomness(). This causes a crash in virtio_rng if
CONFIG_VMAP_STACK=y.
Reported-by: Matt Mullins <mmullins@mmlx.us>
Tested-by: Matt Mullins <mmullins@mmlx.us>
Fixes: d3cc7996473a ("hwrng: fetch randomness only after device init")
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions