nouveau/gem: reserve the bo in the info ioctl around the vma lookup

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In the non-uvmm path, there could be a race between the info lookup
finding the vma, and the gem close path closing the vma leading
to a use-after-free.

Spotted with the help of Opus 4.6.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Fixes: e758a31119 ("drm/nouveau: fixup gem_info ioctl to return client-specific bo virtual")
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20260612020658.3176270-1-airlied@gmail.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

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Dave Airlie 2026-06-12 12:06:58 +10:00 • committed by Danilo Krummrich

parent 98b46e693b

commit 5e17160d41

1 changed files with 10 additions and 1 deletions

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drivers/gpu/drm/nouveau/nouveau_gem.c

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