linux-kernel - [PATCH 4.14 66/95] drm/amdgpu: Remove check which is not valid for certain VBIOS

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon,  4 Dec 2017 17:00:30 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Ken Wang <Ken.Wang@....com>,
        Alex Deucher <alexander.deucher@....com>
Subject: [PATCH 4.14 66/95] drm/amdgpu: Remove check which is not valid for certain VBIOS

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ken Wang <Ken.Wang@....com>

commit ab6613b7eaefe85dadfc86025e901c55d71c0379 upstream.

Fixes vbios fetching on certain headless boards.

Signed-off-by: Ken Wang <Ken.Wang@....com>
Acked-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c |    6 ------
 1 file changed, 6 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c
@@ -59,12 +59,6 @@ static bool check_atom_bios(uint8_t *bio
 		return false;
 	}
 
-	tmp = bios[0x18] | (bios[0x19] << 8);
-	if (bios[tmp + 0x14] != 0x0) {
-		DRM_INFO("Not an x86 BIOS ROM\n");
-		return false;
-	}
-
 	bios_header_start = bios[0x48] | (bios[0x49] << 8);
 	if (!bios_header_start) {
 		DRM_INFO("Can't locate bios header\n");