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drm/xe: Drop VM dma-resv lock on xe_sync_in_fence_get failure in exec IOCTL

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BugLink: https://bugs.launchpad.net/bugs/2100292

commit 64a2b6ed4bfd890a0e91955dd8ef8422a3944ed9 upstream.

Upon failure all locks need to be dropped before returning to the user.

Fixes: 58480c1c912f ("drm/xe: Skip VMAs pin when requesting signal to the last XE_EXEC")
Cc: <stable@vger.kernel.org>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241105043524.4062774-3-matthew.brost@intel.com
(cherry picked from commit 7d1a4258e602ffdce529f56686925034c1b3b095)
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
CVE-2024-53086
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
This commit is contained in:
Matthew Brost
2025-02-26 22:49:14 +09:00
committed by Stefan Bader
parent 0126e34f09
commit 116e1efd81
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/xe/xe_exec.c
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@@ -205,6 +205,7 @@ retry:
fence = xe_sync_in_fence_get(syncs, num_syncs, q, vm);
if (IS_ERR(fence)) {
err = PTR_ERR(fence);
xe_vm_unlock(vm);
goto err_unlock_list;
}
for (i = 0; i < num_syncs; i++)