Gh0st
/
linux
mirror of https://github.com/torvalds/linux.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

ACPI: pfr_update: Fix the driver update version check 

The security-version-number check should be used rather
than the runtime version check for driver updates.

Otherwise, the firmware update would fail when the update binary had
a lower runtime version number than the current one.

Fixes: 0db89fa243 ("ACPI: Introduce Platform Firmware Runtime Update device driver")
Cc: 5.17+ <stable@vger.kernel.org> # 5.17+
Reported-by: "Govindarajulu, Hariganesh" <hariganesh.govindarajulu@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Link: https://patch.msgid.link/20250722143233.3970607-1-yu.c.chen@intel.com
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Chen Yu 2025-07-22 22:32:33 +08:00 committed by Rafael J. Wysocki
parent c17b750b3a
commit 8151320c74
2 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/acpi/pfr_update.c
View File

@ -329,7 +329,7 @@ static bool applicable_image(const void *data, struct pfru_update_cap_info *cap,
if (type == PFRU_CODE_INJECT_TYPE)
return payload_hdr->rt_ver >= cap->code_rt_version;
return payload_hdr->rt_ver >= cap->drv_rt_version;
return payload_hdr->svn_ver >= cap->drv_svn;
}
static void print_update_debug_info(struct pfru_updated_result *result,

1
include/uapi/linux/pfrut.h
View File

@ -89,6 +89,7 @@ struct pfru_payload_hdr {
__u32 hw_ver;
__u32 rt_ver;
__u8 platform_id[16];
__u32 svn_ver;
};
enum pfru_dsm_status {