diff options
| author | Andrew Lutomirski <luto@kernel.org> | 2016-10-17 10:06:27 -0700 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2017-02-23 03:54:17 +0000 |
| commit | 2cd8816eccf2fb56d19d0e8751e451eb980815f3 (patch) | |
| tree | 7e2f548858949d2fc322518934e0e5b8d15b46e7 /include | |
| parent | 91dd2474f37e9e1dcd4c0c9c51891fc50edbad8c (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>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions