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drm/amdkfd: fix NULL pointer bug in svm_range_set_attr

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The process_info could be NULL if user doesn't call kfd_ioctl_acquire_vm
before calling kfd_ioctl_svm.

Signed-off-by: Eric Huang <jinhuieric.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 83a26c812e0529eb040d31a76f73e33e637243d4)
Cc: stable@vger.kernel.org
This commit is contained in:
Eric Huang 2026-05-07 15:51:49 -04:00 committed by Alex Deucher
parent ec78a85d95
commit e984d61d92
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/amd/amdkfd/kfd_svm.c
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@ -3732,6 +3732,9 @@ svm_range_set_attr(struct kfd_process *p, struct mm_struct *mm,
svms = &p->svms;
if (!process_info)
return -EINVAL;
mutex_lock(&process_info->lock);
svm_range_list_lock_and_flush_work(svms, mm);