line6usb calltrace and warnings

Discuss usability issues, general maintenance, and general support issues for a grsecurity-enabled system.

line6usb calltrace and warnings

Postby xxterry1xx » Wed Nov 12, 2014 5:10 pm

Hello grsec/pax members,

dmesg kernel shows a warning at drivers/usb/core/hcd.c (transfer buffer not dma capable) then a call trace, then a receive length failed (error -11),read request failed (error -32) and write request failed (error -11)

the dmesg kernel log can be found here > https://bugs.archlinux.org/task/42756?getfile=12421
xxterry1xx
 
Posts: 14
Joined: Wed Nov 12, 2014 4:56 pm

Re: line6usb calltrace and warnings

Postby spender » Wed Nov 12, 2014 7:10 pm

Hi,

Thanks, this is a case of DMA-on-stack. I've fixed it just now and the fix will be included in the next set of patches (all three kernels have the same buggy upstream code).

-Brad
spender
 
Posts: 2185
Joined: Wed Feb 20, 2002 8:00 pm

Re: line6usb calltrace and warnings

Postby xxterry1xx » Wed Nov 12, 2014 8:38 pm

spender wrote:Hi,

Thanks, this is a case of DMA-on-stack. I've fixed it just now and the fix will be included in the next set of patches (all three kernels have the same buggy upstream code).

-Brad

Thanks for fixing the bug :D
xxterry1xx
 
Posts: 14
Joined: Wed Nov 12, 2014 4:56 pm


Return to grsecurity support