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[v9,7/7] drm: Replace strcpy() with strscpy()

Message ID 20241007144911.27693-8-laoar.shao@gmail.com (mailing list archive)
State Not Applicable
Headers show
Series Improve the copy of task comm | expand

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netdev/tree_selection success Not a local patch
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Commit Message

Yafang Shao Oct. 7, 2024, 2:49 p.m. UTC 
To prevent errors from occurring when the src string is longer than the
dst string in strcpy(), we should use strscpy() instead. This
approach also facilitates future extensions to the task comm.

Suggested-by: Justin Stitt <justinstitt@google.com>
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Justin Stitt <justinstitt@google.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@gmail.com>
---
 drivers/gpu/drm/drm_framebuffer.c     | 2 +-
 drivers/gpu/drm/i915/i915_gpu_error.c | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
index 888aadb6a4ac..2d6993539474 100644
--- a/drivers/gpu/drm/drm_framebuffer.c
+++ b/drivers/gpu/drm/drm_framebuffer.c
@@ -868,7 +868,7 @@  int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
 	INIT_LIST_HEAD(&fb->filp_head);
 
 	fb->funcs = funcs;
-	strcpy(fb->comm, current->comm);
+	strscpy(fb->comm, current->comm);
 
 	ret = __drm_mode_object_add(dev, &fb->base, DRM_MODE_OBJECT_FB,
 				    false, drm_framebuffer_free);
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 6469b9bcf2ec..9d4b25b2cd39 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -1113,7 +1113,7 @@  i915_vma_coredump_create(const struct intel_gt *gt,
 	}
 
 	INIT_LIST_HEAD(&dst->page_list);
-	strcpy(dst->name, name);
+	strscpy(dst->name, name);
 	dst->next = NULL;
 
 	dst->gtt_offset = vma_res->start;
@@ -1413,7 +1413,7 @@  static bool record_context(struct i915_gem_context_coredump *e,
 	rcu_read_lock();
 	task = pid_task(ctx->pid, PIDTYPE_PID);
 	if (task) {
-		strcpy(e->comm, task->comm);
+		strscpy(e->comm, task->comm);
 		e->pid = task->pid;
 	}
 	rcu_read_unlock();
@@ -1459,7 +1459,7 @@  capture_vma_snapshot(struct intel_engine_capture_vma *next,
 		return next;
 	}
 
-	strcpy(c->name, name);
+	strscpy(c->name, name);
 	c->vma_res = i915_vma_resource_get(vma_res);
 
 	c->next = next;