* [Bug 111682] use-after-free in amdgpu_vm_update_directories
@ 2019-09-13 10:39 bugzilla-daemon
2019-09-16 17:56 ` bugzilla-daemon
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: bugzilla-daemon @ 2019-09-13 10:39 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=111682
Bug ID: 111682
Summary: use-after-free in amdgpu_vm_update_directories
Product: DRI
Version: XOrg git
Hardware: Other
OS: All
Status: NEW
Severity: not set
Priority: not set
Component: DRM/AMDgpu
Assignee: dri-devel@lists.freedesktop.org
Reporter: pierre-eric.pelloux-prayer@amd.com
Created attachment 145345
--> https://bugs.freedesktop.org/attachment.cgi?id=145345&action=edit
dmesg output
When using amdgpu.vm_update_mode=3 the following error appears after some time
(ranging from a few minutes to a few hours):
BUG: KASAN: use-after-free in amdgpu_vm_update_directories
I attached the relevant dmesg part.
Notes:
- happens on Navi10 and gfx9 (probably also on other cards but I didn't try)
- reproduced on 865b4ca43816e113996c3be571d4998b6daf5f1 and
20d6b9c3b7f40ec427af912d140f2be0de098d2d
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^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug 111682] use-after-free in amdgpu_vm_update_directories
2019-09-13 10:39 [Bug 111682] use-after-free in amdgpu_vm_update_directories bugzilla-daemon
@ 2019-09-16 17:56 ` bugzilla-daemon
2019-09-16 18:24 ` bugzilla-daemon
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2019-09-16 17:56 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=111682
--- Comment #1 from Andrey Grodzovsky <andrey.grodzovsky@amd.com> ---
Which kernel branch are you using ? I couldn't find
amdgpu_vm_update_directories in latest code in amd-staging-drm-next and turns
out it was renamed to amdgpu_vm_update_pdes in
78b20c2ee6788ba0df8b36b1369bc7e264262d3b back in March so seems like this is
very outdated code.
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^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug 111682] use-after-free in amdgpu_vm_update_directories
2019-09-13 10:39 [Bug 111682] use-after-free in amdgpu_vm_update_directories bugzilla-daemon
2019-09-16 17:56 ` bugzilla-daemon
@ 2019-09-16 18:24 ` bugzilla-daemon
2019-09-17 7:18 ` bugzilla-daemon
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2019-09-16 18:24 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=111682
--- Comment #2 from Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com> ---
(In reply to Andrey Grodzovsky from comment #1)
> Which kernel branch are you using ? I couldn't find
> amdgpu_vm_update_directories in latest code in amd-staging-drm-next and
> turns out it was renamed to amdgpu_vm_update_pdes in
> 78b20c2ee6788ba0df8b36b1369bc7e264262d3b back in March so seems like this is
> very outdated code.
I'm using amd-staging-drm-next from a few days ago.
But 78b20c2ee6788ba0df8b36b1369bc7e264262d3b (drm/amdgpu: allow direct
submission of PDE updates v2) has been pushed in this branch recently and
indeed it renamed the function.
I'll rebuild a kernel and test if the issue is still there.
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^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug 111682] use-after-free in amdgpu_vm_update_directories
2019-09-13 10:39 [Bug 111682] use-after-free in amdgpu_vm_update_directories bugzilla-daemon
2019-09-16 17:56 ` bugzilla-daemon
2019-09-16 18:24 ` bugzilla-daemon
@ 2019-09-17 7:18 ` bugzilla-daemon
2019-09-17 7:19 ` [Bug 111682] use-after-free in amdgpu_vm_update_pdes bugzilla-daemon
2019-11-19 9:51 ` bugzilla-daemon
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2019-09-17 7:18 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=111682
--- Comment #3 from Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com> ---
Created attachment 145387
--> https://bugs.freedesktop.org/attachment.cgi?id=145387&action=edit
dmesg when using cfdabd064b2d(drm/amdgpu: remove the redundant null checks)
Using the latest commit from amd-staging-drm-next (= cfdabd064b2d58f
"drm/amdgpu: remove the redundant null checks"): the use-after-free bug is
still there.
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug 111682] use-after-free in amdgpu_vm_update_pdes
2019-09-13 10:39 [Bug 111682] use-after-free in amdgpu_vm_update_directories bugzilla-daemon
` (2 preceding siblings ...)
2019-09-17 7:18 ` bugzilla-daemon
@ 2019-09-17 7:19 ` bugzilla-daemon
2019-11-19 9:51 ` bugzilla-daemon
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2019-09-17 7:19 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=111682
Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|use-after-free in |use-after-free in
|amdgpu_vm_update_directorie |amdgpu_vm_update_pdes
|s |
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^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug 111682] use-after-free in amdgpu_vm_update_pdes
2019-09-13 10:39 [Bug 111682] use-after-free in amdgpu_vm_update_directories bugzilla-daemon
` (3 preceding siblings ...)
2019-09-17 7:19 ` [Bug 111682] use-after-free in amdgpu_vm_update_pdes bugzilla-daemon
@ 2019-11-19 9:51 ` bugzilla-daemon
4 siblings, 0 replies; 6+ messages in thread
From: bugzilla-daemon @ 2019-11-19 9:51 UTC (permalink / raw)
To: dri-devel
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https://bugs.freedesktop.org/show_bug.cgi?id=111682
Martin Peres <martin.peres@free.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |MOVED
--- Comment #4 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --
This bug has been migrated to freedesktop.org's GitLab instance and has been
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You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/905.
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