Bug 1357994

Hi I get the same error with Fedora 24

udo mokutil --import public_key.der 
input password: 
input password again: 
Failed to enroll new keys
[knutjbj@uefi_knut nvidia_key] $

I am currently using Fedora 24 on a Lenovo e460.
When I try to import a key using mokutil --import pub.der I get the following error:
'Failed to set variable (2) Invalid parameter'
And as you could guess, the key is not imported.

Kernel:
4.6.4-301.fc24.x86_64
kernel-devel:
4.6.4-301.fc24.x86_64

mokutil: 
0.3.0-1.fc24.x86_64


While I was still using fedora 23 I would receive that same error as listed above,  but I would also receive other errors, such as:
mokutil --password 
Failed to write MokPW

could this bug be duplicate of 1263992

I have similar issue (as already noted above):
[root@localhost ~]# /mnt/usr/bin/strace -o zzz mokutil --import /mnt/root/MOK.der 
input password: 
input password again: 
Failed to enroll new keys

From the strace log:

open("/sys/firmware/efi/efivars/MokNew-605dab50-e046-4300-abb6-3dd810dd8b23", O_RDONLY) = 4
fstat(4, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
read(4, "", 4)                          = 0
close(4)                                = 0
close(3)                                = 0
fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(0, SNDCTL_TMR_CONTINUE or SNDRV_TIMER_IOCTL_GPARAMS or TCSETSF, {B38400 opost isig icanon -echo ...}) = 0
fstat(0, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
write(1, "input password: ", 16)        = 16
read(0, "1234\n", 1024)                 = 5
ioctl(0, SNDCTL_TMR_CONTINUE or SNDRV_TIMER_IOCTL_GPARAMS or TCSETSF, {B38400 opost isig icanon echo ...}) = 0
write(1, "\n", 1)                       = 1
ioctl(0, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or SNDRV_TIMER_IOCTL_NEXT_DEVICE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
ioctl(0, SNDCTL_TMR_CONTINUE or SNDRV_TIMER_IOCTL_GPARAMS or TCSETSF, {B38400 opost isig icanon -echo ...}) = 0
write(1, "input password again: ", 22)  = 22
read(0, "1234\n", 1024)                 = 5
ioctl(0, SNDCTL_TMR_CONTINUE or SNDRV_TIMER_IOCTL_GPARAMS or TCSETSF, {B38400 opost isig icanon echo ...}) = 0
write(1, "\n", 1)                       = 1
futex(0x7f7bfef1b0a8, FUTEX_WAKE_PRIVATE, 2147483647) = 0
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=86698, ...}) = 0
mmap(NULL, 86698, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f7c0075b000
close(3)                                = 0
open("/lib64/libnspr4.so", O_RDONLY|O_CLOEXEC) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\314\0\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=253136, ...}) = 0
close(3)                                = 0
munmap(0x7f7c0075b000, 86698)           = 0
open("/proc/sys/crypto/fips_enabled", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
read(3, "0\n", 1024)                    = 2
close(3)                                = 0
open("/sys/firmware/efi/efivars/MokNew-605dab50-e046-4300-abb6-3dd810dd8b23", O_WRONLY|O_CREAT, 0644) = -1 EACCES (Permission denied)
write(2, "Failed to enroll new keys\n", 26) = 26

Note permission error when opening MokNew* for write.

I've tried to remove the file:

[root@localhost ~]# /mnt/usr/bin/strace -o zzz rm /sys/firmware/efi/efivars/MokNew-605dab50-e046-4300-abb6-3dd810dd8b23 
rm: cannot remove '/sys/firmware/efi/efivars/MokNew-605dab50-e046-4300-abb6-3dd810dd8b23': Operation not permitted

and relevant strace log:

newfstatat(AT_FDCWD, "/sys/firmware/efi/efivars/MokNew-605dab50-e046-4300-abb6-3dd810dd8b23", {st_mode=S_IFREG|0644, st_size=0, ...}, AT_SYMLINK_NOFOLLOW) = 0
geteuid()                               = 0
unlinkat(AT_FDCWD, "/sys/firmware/efi/efivars/MokNew-605dab50-e046-4300-abb6-3dd810dd8b23", 0) = -1 EPERM (Operation not permitted)

The interesting part is that I CAN modify boot order variables.

It looks like for whatever reason kernel is somehow restricting access to Mok* efi variables. Could it be somehow related to the issue of bricking UEFI platform with `rm -rf /'?

I used Fedora 24 x86_64 Workstation Live CD downloaded yesterday for the above checks.

This issue also exists on up to date CentOS 7.2 and very likely - on RHEL 7.2.

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I have the same problem in Fedora 25.

sudo mokutil --password
input password: 
input password again: 
Failed to write MokPW: Invalid argument

 sudo mokutil --clear-password
Failed to write MokPW: Invalid argument