diff options
| author | Tony Luck <tony.luck@intel.com> | 2025-10-22 13:45:23 -0700 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-10-27 20:35:35 +0100 |
| commit | dc131bcd8d9219f7da533918abcb0d32951b7702 (patch) | |
| tree | c7d516767432871f3039647cf2b59b0def332049 /drivers | |
| parent | Linux 6.18-rc3 (diff) | |
| download | linux-dc131bcd8d9219f7da533918abcb0d32951b7702.tar.gz linux-dc131bcd8d9219f7da533918abcb0d32951b7702.zip | |
ACPI: MRRM: Check revision of MRRM table
Before trying to parse the MRRM table, check that the table revision
is the one that is expected.
Fixes: b9020bdb9f76 ("ACPI: MRRM: Minimal parse of ACPI MRRM table")
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://patch.msgid.link/20251022204523.10752-1-tony.luck@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/acpi_mrrm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/acpi/acpi_mrrm.c b/drivers/acpi/acpi_mrrm.c index 47ea3ccc2142..a6dbf623e557 100644 --- a/drivers/acpi/acpi_mrrm.c +++ b/drivers/acpi/acpi_mrrm.c @@ -63,6 +63,9 @@ static __init int acpi_parse_mrrm(struct acpi_table_header *table) if (!mrrm) return -ENODEV; + if (mrrm->header.revision != 1) + return -EINVAL; + if (mrrm->flags & ACPI_MRRM_FLAGS_REGION_ASSIGNMENT_OS) return -EOPNOTSUPP; |