https://bugzilla.kernel.org/show_bug.cgi?id=189431
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Bug ID: 189431
Summary: s3 second suspend - "Warning boot script table is
modified!!! Please contact your vendor." - Cold boot.
Product: ACPI
Version: 2.5
Kernel Version: from 3.17 up to current 4.8.11
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Power-Sleep-Wake
Assignee: acpi_power-sleep-w...@kernel-bugs.osdl.org
Reporter: tem_...@o2.pl
Regression: No
Created attachment 246551
--> https://bugzilla.kernel.org/attachment.cgi?id=246551&action=edit
second suspend log (after cold boot journalctl -b -1)
Suspending the laptop into ram on second attempt cousing hard reset (cold boot)
with the message from uefi firmwre : Warning!!! Boot script table is
modified!!! Please contact your vendor."
Arch Linux installed on Lenovo G50-45 (AMD A6 6310 APU with R4 Beema/Mullins)
Booting in UEFI mode (but trying boot in Legacy with UEFI and Secure Boot
turned off and there is the same reaction - cold boot on second attempt to
suspend with warning from BIOS).
I tried many Linux disrtibutions with kernels below 3.16 and above (Debian,
Slackware, Fedora, OpenSUSE). Probem occurs if you try to use kernel from 3.17
up to current -> 4.8.10.
Now I'am using 3.16lts from AUR and suspend to ram works.
Problem was posted on Arch Linux Forum :
https://bbs.archlinux.org/viewtopic.php?id=218645
and is affecting not only Lenovo laptops as you may think) :
https://bugs.launchpad.net/ubuntu/+source/pm-utils/+bug/1528735
Sometimes other laptops just hangs or there is no message from UEFI firmware -
just cold boot.
>From information I have found in internet it is related to security fix issue
of S3 mode :
https://support.lenovo.com/br/en/product_security/s3_boot_protect
Vulnerability Note VU#976132 http://www.kb.cert.org/vuls/id/976132
UEFI implementations do not properly secure the EFI S3 Resume Boot Path boot
script.
>From dmidecode:
BIOS Information
Vendor: LENOVO
Version: A2CN40WW(V2.08)
Release Date: 08/21/2015
Attached log fom second suspend.
Steps to reproduce:
Install Arch Linux (or any other distro I've tried) with kernel above 3.16 on
Lenovo G50-45 (or other Laptop affected by bios S3 security issue fix) and
suspend to ram twice time in a row.
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