Bug 205265

Summary:	gpio_generic: module verification failed: signature and/or required key missing - tainting kernel
Product:	Drivers	Reporter:	ilkka.prusi
Component:	Other	Assignee:	drivers_other
Status:	NEW ---
Severity:	low
Priority:	P1
Hardware:	x86-64
OS:	Linux
Kernel Version:	5.4.0-rc3+	Subsystem:
Regression:	No	Bisected commit-id:

Description ilkka.prusi 2019-10-19 11:20:10 UTC

On a newly built kernel, gpio_generic module causes "tainting": module signature is not applied correctly when building?

$ file gpio-generic.ko 
gpio-generic.ko: ELF 64-bit LSB relocatable, x86-64, version 1 (SYSV), BuildID[sha1]=cbc4cea4ea876ca157e6172d7ea47429c302dff4, with debug_info, not stripped

Comment 1 ilkka.prusi 2019-10-19 11:31:03 UTC

gpio_generic is used by gpio_amdpt on x86-64:
gpio_amdpt             20480  0
gpio_generic           16384  1 gpio_amdpt

Comment 2 ilkka.prusi 2019-10-20 18:06:21 UTC

Taint appears on newer kernel (5.4.0-rc3+) as well with Debian/testing.

gcc (Debian 9.2.1-8) 9.2.1 20190909

CPU: 1 PID: 465 Comm: systemd-udevd Tainted: G            E     5.4.0-rc3+ #3