Bug#978753: usercopy: Kernel memory exposure attempt

[Salvatore Bonaccorso <carnil@debian.org>]

Control: tags -1 + moreinfo

Hi Markus,

Thanks for your report.

On Thu, Dec 31, 2020 at 12:45:47PM +0200, Markus Bäcklund wrote:
> Package: src:linux-image-4.19.0-13-amd64
> Version: 4.19.160-2
> Severity: critical
> Justification: breaks the whole system
> 
> 
> 
> -- Package-specific info:
> ** Kernel log: boot messages should be attached
> 
> 
> -- System Information:
> Debian Release: 10.7
>   APT prefers stable-updates
>   APT policy: (500, 'stable-updates'), (500, 'stable')
> Architecture: amd64 (x86_64)
> 
> Kernel: Linux 5.4.86 (SMP w/4 CPU cores)
> Kernel taint flags: TAINT_UNSIGNED_MODULE

5.4.86 is not a Debian kernel in buster and was tainted. Can you
please provide the kernel logs as well? This might give some better
clue.

Regards,
Salvatore