https://bugs.freedesktop.org/show_bug.cgi?id=58087
Priority: medium
Bug ID: 58087
Assignee: [email protected]
Summary: [-next] nouveau corrupts kernel mm allocator
QA Contact: [email protected]
Severity: normal
Classification: Unclassified
OS: Linux (All)
Reporter: [email protected]
Hardware: x86-64 (AMD64)
Status: NEW
Version: unspecified
Component: Driver/nouveau
Product: xorg
Created attachment 71269
--> https://bugs.freedesktop.org/attachment.cgi?id=71269&action=edit
kernel log showing BUG triggered by nouveau
If nouveau_vm_new() fails in nouveau_drm_open(), the cleanup triggered corrupts
the kernel slab allocator (in this case, SLUB).
Attached is the kernel log showing the page allocation failure and the
subsequent BUG in mm/slub.c
A similar corruption had previously occurred which triggered a GP fault in the
mm allocator from the same code path. This was reported as kernel bug #51291
here
https://bugzilla.kernel.org/show_bug.cgi?id=51291
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