FS#52970 : [linux-grsec] AMDGPU: Possible size overflow detected by PaX

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FS#52970 - [linux-grsec] AMDGPU: Possible size overflow detected by PaX

Attached to Project: Community Packages
Opened by manni (manik) - Wednesday, 15 February 2017, 05:13 GMT
Last edited by Daniel Micay (thestinger) - Saturday, 18 March 2017, 06:09 GMT

Task Type	Bug Report
Category	Upstream Bugs
Status	Closed
Assigned To	Daniel Micay (thestinger)
Architecture	All
Severity	Low
Priority	Normal
Reported Version
Due in Version	Undecided
Due Date	Undecided
Percent Complete
Votes	0
Private	No

Details

Description:

When using the grsec kernel on AMD gpus (using the new amdgpu driver), the boot process does not finish and pax creates the following log message in the journal:

PAX: size overflow detected in function ttm_bo_handle_move_mem drivers/gpu/drm/ttm/ttm_bo.c:388 cicus.459_185 max, count: 5, decl: offset; num: 0; context: ttm_buffer_object;

This issue is already know upstream and will probably be solved by a kernel update:

https://forums.grsecurity.net/viewtopic.php?f=3&t=4667
https://bugzilla.kernel.org/show_bug.cgi?id=194579

Meanwhile this bugreport can provide information to other users wondering about this issue.

Also, since there are ways to make exceptions for pax, is there maybe a way to workaround this issue until a new kernel version is released?

This task depends upon

Closed by Daniel Micay (thestinger)
Saturday, 18 March 2017, 06:09 GMT
Reason for closing: Upstream
Additional comments about closing: Not going to be doing anything about these issues downstream.