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| author |   Lv Zheng <lv.zheng@intel.com> | 2017-07-10 15:23:37 +0800 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-07-20 16:38:25 +0200 |
| commit | 04ba15aa55cf16e18757faea55d62d1b7e407fe3 (patch) | |
| tree | d1da3f0e12c6686c06bb8aafaa9e3b65dbf0a91b /drivers/acpi/acpica/tbxface.c | |
| parent | ACPICA: Tables: Cleanup table handler invokers (diff) | |
| download | linux-dev-04ba15aa55cf16e18757faea55d62d1b7e407fe3.tar.xz linux-dev-04ba15aa55cf16e18757faea55d62d1b7e407fe3.zip | |
ACPICA: Tables: Do not validate signature for dynamic table load
ACPICA commit d3c944f2cdc8c7e847b7942b1864f285189f7bce
Windows seems to allow arbitrary table signatures for Load/load_table
opcodes:
ACPI BIOS Error (bug): Table has invalid signature [PRAD] (0x44415250)
So this patch removes dynamic load signature checks. However we need to
find a way to avoid table loading against tables like MADT. This is not
covered by this commit.
This Windows behavior has been validated on link #1. An end user bug
report can also be found on link #2.
This patch also includes simple cleanup for static load signature check
code. Reported by Ye Xiaolong, Fixed by Lv Zheng.
Link: https://github.com/acpica/acpica/commit/d3c944f2
Link: https://github.com/acpica/acpica/pull/121 [#1]
Link: https://bugzilla.kernel.org/show_bug.cgi?id=118601 [#2]
Reported-by: Ye Xiaolong <xiaolong.ye@intel.com>
Reported-by: Olga Uhina <olga.uhina@gmail.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/tbxface.c')
0 files changed, 0 insertions, 0 deletions