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| author | Eric Huang <jinhuieric.huang@amd.com> | 2026-05-07 22:51:49 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-05-27 17:38:57 +0300 |
| commit | 83a26c812e0529eb040d31a76f73e33e637243d4 (patch) | |
| tree | d220a0e79ddd2ac06fab5f77f4235aef936d001d | |
| parent | 08236c3ef284cd2d110e5e3d51fc9615e551f9dc (diff) | |
| download | linux-83a26c812e0529eb040d31a76f73e33e637243d4.tar.xz | |
drm/amdkfd: fix NULL pointer bug in svm_range_set_attr
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>
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c index 35ec67d9739b..3841943da5ec 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c @@ -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); |