Bug#908570: linux 4.18: dmesg readable as normal user
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On Tue, 2018-09-11 at 12:01 +0200, Philipp Kern wrote:
> Source: linux
> Version: 4.18.6-1
>
> Unfortunately I have experienced this on a rebuilt package and cannot
> easily test with the one actually in Debian unstable, but for me dmesg
> seems to work as a normal user again. "cat /dev/kmsg" just works:
>
> [...]
> open("/dev/kmsg", O_RDONLY|O_NONBLOCK) = 3
> lseek(3, 0, SEEK_DATA) = 0
> read(3, "5,0,0,-;Linux version 4.18.0-1ro"..., 8191) = 157
> [...]
>
> % grep DMESG /boot/config-4.18.0-1rodete1-amd64
> CONFIG_SECURITY_DMESG_RESTRICT=y
>
> (We do very, very minimal patching to the kernel to make it work for us,
> hence the different ABI version. And it'd really help us if the ABI
> version were to be bumped with every upload.)
Hi,
what's the content of kernel.dmesg_restrict sysctl?
Regards,
- --
Yves-Alexis
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