From: Christopher Snowhill <kode54@gmail.com>
To: intel-xe@lists.freedesktop.org
Cc: Ryan Houdek <sonicadvance1@gmail.com>
Subject: [Intel-xe] [RFC PATCH 2/2] drm/xe: Validate uAPI padding and reserved fields
Date: Thu, 25 May 2023 17:32:21 -0700 [thread overview]
Message-ID: <20230526003221.3874899-3-kode54@gmail.com> (raw)
In-Reply-To: <20230526003221.3874899-1-kode54@gmail.com>
Padding and reserved fields are declared such that they must be
zeroed, so verify that they're all zero in the respective ioctl
functions.
v3:
Rebased original mlankhorst patch
Changed one padding member to avoid changing num_batch_buffer size
v2:
Removed extensions check where there was none originally. (José)
Moved extraneous parentheses to the correct places. (Lucas)
Suggested-by: Ryan Houdek <sonicadvance1@gmail.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
---
drivers/gpu/drm/xe/xe_bo.c | 6 ++++--
drivers/gpu/drm/xe/xe_engine.c | 18 ++++++++++++++----
drivers/gpu/drm/xe/xe_exec.c | 4 +++-
drivers/gpu/drm/xe/xe_mmio.c | 3 ++-
drivers/gpu/drm/xe/xe_query.c | 3 ++-
drivers/gpu/drm/xe/xe_sync.c | 4 +++-
drivers/gpu/drm/xe/xe_vm.c | 21 ++++++++++++++++++---
drivers/gpu/drm/xe/xe_vm_madvise.c | 3 ++-
drivers/gpu/drm/xe/xe_wait_user_fence.c | 3 ++-
9 files changed, 50 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/xe/xe_bo.c b/drivers/gpu/drm/xe/xe_bo.c
index 21c5aca424dd..0db9c05097d0 100644
--- a/drivers/gpu/drm/xe/xe_bo.c
+++ b/drivers/gpu/drm/xe/xe_bo.c
@@ -1646,7 +1646,8 @@ int xe_gem_create_ioctl(struct drm_device *dev, void *data,
u32 handle;
int err;
- if (XE_IOCTL_ERR(xe, args->extensions))
+ if (XE_IOCTL_ERR(xe, args->extensions) || XE_IOCTL_ERR(xe, args->pad) ||
+ XE_IOCTL_ERR(xe, args->reserved[0] || args->reserved[1]))
return -EINVAL;
if (XE_IOCTL_ERR(xe, args->flags &
@@ -1716,7 +1717,8 @@ int xe_gem_mmap_offset_ioctl(struct drm_device *dev, void *data,
struct drm_xe_gem_mmap_offset *args = data;
struct drm_gem_object *gem_obj;
- if (XE_IOCTL_ERR(xe, args->extensions))
+ if (XE_IOCTL_ERR(xe, args->extensions) ||
+ XE_IOCTL_ERR(xe, args->reserved[0] || args->reserved[1]))
return -EINVAL;
if (XE_IOCTL_ERR(xe, args->flags))
diff --git a/drivers/gpu/drm/xe/xe_engine.c b/drivers/gpu/drm/xe/xe_engine.c
index 094ec17d3004..1a9082db8f1b 100644
--- a/drivers/gpu/drm/xe/xe_engine.c
+++ b/drivers/gpu/drm/xe/xe_engine.c
@@ -348,7 +348,8 @@ static int engine_user_ext_set_property(struct xe_device *xe,
return -EFAULT;
if (XE_IOCTL_ERR(xe, ext.property >=
- ARRAY_SIZE(engine_set_property_funcs)))
+ ARRAY_SIZE(engine_set_property_funcs)) ||
+ XE_IOCTL_ERR(xe, ext.pad))
return -EINVAL;
idx = array_index_nospec(ext.property, ARRAY_SIZE(engine_set_property_funcs));
@@ -380,7 +381,8 @@ static int engine_user_extensions(struct xe_device *xe, struct xe_engine *e,
if (XE_IOCTL_ERR(xe, err))
return -EFAULT;
- if (XE_IOCTL_ERR(xe, ext.name >=
+ if (XE_IOCTL_ERR(xe, ext.pad) ||
+ XE_IOCTL_ERR(xe, ext.name >=
ARRAY_SIZE(engine_user_extension_funcs)))
return -EINVAL;
@@ -523,7 +525,8 @@ int xe_engine_create_ioctl(struct drm_device *dev, void *data,
int len;
int err;
- if (XE_IOCTL_ERR(xe, args->flags))
+ if (XE_IOCTL_ERR(xe, args->flags) ||
+ XE_IOCTL_ERR(xe, args->reserved[0] || args->reserved[1]))
return -EINVAL;
len = args->width * args->num_placements;
@@ -639,6 +642,9 @@ int xe_engine_get_property_ioctl(struct drm_device *dev, void *data,
struct drm_xe_engine_get_property *args = data;
struct xe_engine *e;
+ if (XE_IOCTL_ERR(xe, args->reserved[0] || args->reserved[1]))
+ return -EINVAL;
+
mutex_lock(&xef->engine.lock);
e = xa_load(&xef->engine.xa, args->engine_id);
mutex_unlock(&xef->engine.lock);
@@ -718,7 +724,8 @@ int xe_engine_destroy_ioctl(struct drm_device *dev, void *data,
struct drm_xe_engine_destroy *args = data;
struct xe_engine *e;
- if (XE_IOCTL_ERR(xe, args->pad))
+ if (XE_IOCTL_ERR(xe, args->pad) ||
+ XE_IOCTL_ERR(xe, args->reserved[0] || args->reserved[1]))
return -EINVAL;
mutex_lock(&xef->engine.lock);
@@ -748,6 +755,9 @@ int xe_engine_set_property_ioctl(struct drm_device *dev, void *data,
int ret;
u32 idx;
+ if (XE_IOCTL_ERR(xe, args->reserved[0] || args->reserved[1]))
+ return -EINVAL;
+
e = xe_engine_lookup(xef, args->engine_id);
if (XE_IOCTL_ERR(xe, !e))
return -ENOENT;
diff --git a/drivers/gpu/drm/xe/xe_exec.c b/drivers/gpu/drm/xe/xe_exec.c
index 3db1b159586e..e44076ee2e11 100644
--- a/drivers/gpu/drm/xe/xe_exec.c
+++ b/drivers/gpu/drm/xe/xe_exec.c
@@ -181,7 +181,9 @@ int xe_exec_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
bool write_locked;
int err = 0;
- if (XE_IOCTL_ERR(xe, args->extensions))
+ if (XE_IOCTL_ERR(xe, args->extensions) ||
+ XE_IOCTL_ERR(xe, args->pad[0] || args->pad[1] || args->pad[2]) ||
+ XE_IOCTL_ERR(xe, args->reserved[0] || args->reserved[1]))
return -EINVAL;
engine = xe_engine_lookup(xef, args->engine_id);
diff --git a/drivers/gpu/drm/xe/xe_mmio.c b/drivers/gpu/drm/xe/xe_mmio.c
index 4c270a07136e..87dd417e3f08 100644
--- a/drivers/gpu/drm/xe/xe_mmio.c
+++ b/drivers/gpu/drm/xe/xe_mmio.c
@@ -404,7 +404,8 @@ int xe_mmio_ioctl(struct drm_device *dev, void *data,
bool allowed;
int ret = 0;
- if (XE_IOCTL_ERR(xe, args->extensions))
+ if (XE_IOCTL_ERR(xe, args->extensions) ||
+ XE_IOCTL_ERR(xe, args->reserved[0] || args->reserved[1]))
return -EINVAL;
if (XE_IOCTL_ERR(xe, args->flags & ~VALID_MMIO_FLAGS))
diff --git a/drivers/gpu/drm/xe/xe_query.c b/drivers/gpu/drm/xe/xe_query.c
index dd64ff0d2a57..b10959fde43b 100644
--- a/drivers/gpu/drm/xe/xe_query.c
+++ b/drivers/gpu/drm/xe/xe_query.c
@@ -374,7 +374,8 @@ int xe_query_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
struct drm_xe_device_query *query = data;
u32 idx;
- if (XE_IOCTL_ERR(xe, query->extensions != 0))
+ if (XE_IOCTL_ERR(xe, query->extensions) ||
+ XE_IOCTL_ERR(xe, query->reserved[0] || query->reserved[1]))
return -EINVAL;
if (XE_IOCTL_ERR(xe, query->query > ARRAY_SIZE(xe_query_funcs)))
diff --git a/drivers/gpu/drm/xe/xe_sync.c b/drivers/gpu/drm/xe/xe_sync.c
index 1e4e4acb2c4a..5acb37a8b2ab 100644
--- a/drivers/gpu/drm/xe/xe_sync.c
+++ b/drivers/gpu/drm/xe/xe_sync.c
@@ -111,7 +111,9 @@ int xe_sync_entry_parse(struct xe_device *xe, struct xe_file *xef,
return -EFAULT;
if (XE_IOCTL_ERR(xe, sync_in.flags &
- ~(SYNC_FLAGS_TYPE_MASK | DRM_XE_SYNC_SIGNAL)))
+ ~(SYNC_FLAGS_TYPE_MASK | DRM_XE_SYNC_SIGNAL)) ||
+ XE_IOCTL_ERR(xe, sync_in.pad) ||
+ XE_IOCTL_ERR(xe, sync_in.reserved[0] || sync_in.reserved[1]))
return -EINVAL;
signal = sync_in.flags & DRM_XE_SYNC_SIGNAL;
diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c
index 4d9c8de8b348..93a146bc639a 100644
--- a/drivers/gpu/drm/xe/xe_vm.c
+++ b/drivers/gpu/drm/xe/xe_vm.c
@@ -1801,7 +1801,9 @@ static int vm_user_ext_set_property(struct xe_device *xe, struct xe_vm *vm,
return -EFAULT;
if (XE_IOCTL_ERR(xe, ext.property >=
- ARRAY_SIZE(vm_set_property_funcs)))
+ ARRAY_SIZE(vm_set_property_funcs)) ||
+ XE_IOCTL_ERR(xe, ext.pad) ||
+ XE_IOCTL_ERR(xe, ext.reserved[0] || ext.reserved[1]))
return -EINVAL;
return vm_set_property_funcs[ext.property](xe, vm, ext.value);
@@ -1829,7 +1831,8 @@ static int vm_user_extensions(struct xe_device *xe, struct xe_vm *vm,
if (XE_IOCTL_ERR(xe, err))
return -EFAULT;
- if (XE_IOCTL_ERR(xe, ext.name >=
+ if (XE_IOCTL_ERR(xe, ext.pad) ||
+ XE_IOCTL_ERR(xe, ext.name >=
ARRAY_SIZE(vm_user_extension_funcs)))
return -EINVAL;
@@ -1860,6 +1863,9 @@ int xe_vm_create_ioctl(struct drm_device *dev, void *data,
int err;
u32 flags = 0;
+ if (XE_IOCTL_ERR(xe, args->reserved[0] || args->reserved[1]))
+ return -EINVAL;
+
if (XE_IOCTL_ERR(xe, args->flags & ~ALL_DRM_XE_VM_CREATE_FLAGS))
return -EINVAL;
@@ -1943,7 +1949,8 @@ int xe_vm_destroy_ioctl(struct drm_device *dev, void *data,
struct drm_xe_vm_destroy *args = data;
struct xe_vm *vm;
- if (XE_IOCTL_ERR(xe, args->pad))
+ if (XE_IOCTL_ERR(xe, args->pad) ||
+ XE_IOCTL_ERR(xe, args->reserved[0] || args->reserved[1]))
return -EINVAL;
vm = xe_vm_lookup(xef, args->vm_id);
@@ -2893,6 +2900,7 @@ static int vm_bind_ioctl_check_args(struct xe_device *xe,
int i;
if (XE_IOCTL_ERR(xe, args->extensions) ||
+ XE_IOCTL_ERR(xe, args->reserved[0] || args->reserved[1]) ||
XE_IOCTL_ERR(xe, !args->num_binds) ||
XE_IOCTL_ERR(xe, args->num_binds > MAX_BINDS))
return -EINVAL;
@@ -2925,6 +2933,13 @@ static int vm_bind_ioctl_check_args(struct xe_device *xe,
u64 obj_offset = (*bind_ops)[i].obj_offset;
u32 region = (*bind_ops)[i].region;
+ if (XE_IOCTL_ERR(xe, (*bind_ops)[i].pad) ||
+ XE_IOCTL_ERR(xe, (*bind_ops)[i].reserved[0] ||
+ (*bind_ops)[i].reserved[1])) {
+ err = -EINVAL;
+ goto free_bind_ops;
+ }
+
if (i == 0) {
*async = !!(op & XE_VM_BIND_FLAG_ASYNC);
} else if (XE_IOCTL_ERR(xe, !*async) ||
diff --git a/drivers/gpu/drm/xe/xe_vm_madvise.c b/drivers/gpu/drm/xe/xe_vm_madvise.c
index 29815852985a..c7e3ae7203d7 100644
--- a/drivers/gpu/drm/xe/xe_vm_madvise.c
+++ b/drivers/gpu/drm/xe/xe_vm_madvise.c
@@ -301,7 +301,8 @@ int xe_vm_madvise_ioctl(struct drm_device *dev, void *data,
struct xe_vma **vmas = NULL;
int num_vmas = 0, err = 0, idx;
- if (XE_IOCTL_ERR(xe, args->extensions))
+ if (XE_IOCTL_ERR(xe, args->extensions) ||
+ XE_IOCTL_ERR(xe, args->reserved[0] || args->reserved[1]))
return -EINVAL;
if (XE_IOCTL_ERR(xe, args->property > ARRAY_SIZE(madvise_funcs)))
diff --git a/drivers/gpu/drm/xe/xe_wait_user_fence.c b/drivers/gpu/drm/xe/xe_wait_user_fence.c
index 15c2e5aa08d2..eef989647bb0 100644
--- a/drivers/gpu/drm/xe/xe_wait_user_fence.c
+++ b/drivers/gpu/drm/xe/xe_wait_user_fence.c
@@ -100,7 +100,8 @@ int xe_wait_user_fence_ioctl(struct drm_device *dev, void *data,
args->flags & DRM_XE_UFENCE_WAIT_VM_ERROR;
unsigned long timeout = args->timeout;
- if (XE_IOCTL_ERR(xe, args->extensions))
+ if (XE_IOCTL_ERR(xe, args->extensions) ||
+ XE_IOCTL_ERR(xe, args->reserved[0] || args->reserved[1]))
return -EINVAL;
if (XE_IOCTL_ERR(xe, args->flags & ~VALID_FLAGS))
--
2.40.1
next prev parent reply other threads:[~2023-05-26 0:32 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-26 0:32 [Intel-xe] [RFC PATCH 0/2] Draft: Update Xe uAPI for 32-bit compat, invasively Christopher Snowhill
2023-05-26 0:32 ` [Intel-xe] [RFC PATCH 1/2] drm/xe: Reshuffle all of the uAPI structs Christopher Snowhill
2023-05-26 0:32 ` Christopher Snowhill [this message]
2023-05-26 0:34 ` [Intel-xe] ✓ CI.Patch_applied: success for Draft: Update Xe uAPI for 32-bit compat, invasively Patchwork
2023-05-26 0:36 ` [Intel-xe] ✓ CI.KUnit: " Patchwork
2023-05-26 0:40 ` [Intel-xe] ✓ CI.Build: " Patchwork
2023-05-26 1:09 ` [Intel-xe] ○ CI.BAT: info " Patchwork
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