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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 09:32:27 +0200 |
| commit | 3fe2875378d3a0dd2005f6212d4650395dbaab24 (patch) | |
| tree | 46f1db465ca8bb827bcf01d2539cf1283477a40f /target/linux/at91 | |
| parent | 8da4e8fb5687c93091c3759fb983bc59c6312683 (diff) | |
| download | upstream-3fe2875378d3a0dd2005f6212d4650395dbaab24.tar.gz upstream-3fe2875378d3a0dd2005f6212d4650395dbaab24.tar.bz2 upstream-3fe2875378d3a0dd2005f6212d4650395dbaab24.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/at91')
0 files changed, 0 insertions, 0 deletions