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Message #170531
[Bug 1558275] Comment bridged from LTC Bugzilla
------- Comment From brueckner@xxxxxxxxxx 2016-04-05 06:56 EDT-------
Please backport upstream commit:
commit 74b2375e6767935e6d9220bdbc6ed0db57f71a59
Author: Harald Freudenberger <freude@xxxxxxxxxxxxxxxxxx>
Date: Thu Mar 17 14:52:17 2016 +0100
s390/crypto: provide correct file mode at device register.
When the prng device driver calls misc_register() there is the possibility
to also provide the recommented file permissions. This fix now gives
useful values (0644) where previously just the default was used (resulting
in 0600 for the device file).
Signed-off-by: Harald Freudenberger <freude@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
arch/s390/crypto/prng.c | 2 ++
1 file changed, 2 insertions(+)
--
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https://bugs.launchpad.net/bugs/1558275
Title:
wrong/missing permissions for device file /dev/prandom (prng.ko)
Status in linux package in Ubuntu:
Invalid
Status in s390-tools package in Ubuntu:
Invalid
Status in systemd package in Ubuntu:
Invalid
Bug description:
The access rights for /dev/prandom are set to 0600. The prandom file
is created upon loading the prng module.
Expectation:
The access rights are set to 0644.
Details
=====
root@s83lp22:~# modinfo prng
filename: /lib/modules/4.4.0-13-generic/kernel/arch/s390/crypto/prng.ko
description: s390 PRNG interface
author: IBM Corporation
license: GPL
srcversion: B48774F4AEBAE6DB4983C98
alias: cpu:type:*:feature:*0003*
depends:
intree: Y
vermagic: 4.4.0-13-generic SMP mod_unload modversions
parm: mode:int
parm: prng_mode:PRNG mode: 0 - auto, 1 - TDES, 2 - SHA512
parm: chunksize:int
parm: prng_chunk_size:PRNG read chunk size in bytes
parm: reseed_limit:int
parm: prng_reseed_limit:PRNG reseed limit
Contact Information = Christian.Rund@xxxxxxxxxx
---uname output---
Linux s83lp22 4.4.0-13-generic #29-Ubuntu SMP Fri Mar 11 19:30:41 UTC 2016 s390x s390x s390x GNU/Linux
Machine Type = Manufacturer: IBM Type: 2964 Model: 702 N96
---Steps to Reproduce---
1) modprobe prng
2) ls -l /dev/prandom
This is a s390x issue.
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