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| author | Jonas Gorski <jonas.gorski@gmail.com> | 2023-09-09 12:44:42 +0200 |
|---|---|---|
| committer | Jonas Gorski <jonas.gorski@gmail.com> | 2023-09-14 09:12:57 +0200 |
| commit | 6c60bbbc94b8f086fcb831214fa319ac8117767d (patch) | |
| tree | 3dc6d544a181578e2f171b25e54a1a7d41a8155e /target/linux/bcm27xx | |
| parent | 6577b550df89766d10375aacc87c56a4658c3776 (diff) | |
| download | upstream-6c60bbbc94b8f086fcb831214fa319ac8117767d.tar.gz upstream-6c60bbbc94b8f086fcb831214fa319ac8117767d.tar.bz2 upstream-6c60bbbc94b8f086fcb831214fa319ac8117767d.zip | |
x86: geode: fix hwrng register accesses
When the membase and pci_dev pointer were moved to a new struct in priv,
the actual membase users were left untouched, and they started reading
out arbitrary memory behind the struct instead of registers. This
unfortunately turned the RNG into a constant number generator, depending
on the content of what was at that offset.
To fix this, update geode_rng_data_{read,present}() to also get the
membase via amd_geode_priv, and properly read from the right addresses
again.
Closes #13417.
Reported-by: Timur I. Davletshin <timur.davletshin@gmail.com>
Tested-by: Timur I. Davletshin <timur.davletshin@gmail.com>
Suggested-by: Jo-Philipp Wich <jo@mein.io>
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
(cherry picked from commit 09d13cd8d87cc50fde67bbe81c6cca4b799b2724)
Diffstat (limited to 'target/linux/bcm27xx')
0 files changed, 0 insertions, 0 deletions