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Mon, 31 Aug 2026 22:02:48 -0700 (PDT) From: Hrushiraj Gandhi To: jani.nikula@linux.intel.com, joonas.lahtinen@linux.intel.com, rodrigo.vivi@intel.com, tursulin@ursulin.net Cc: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Hrushiraj Gandhi Subject: [PATCH] drm/i915/gvt: use strscpy() instead of strcpy() in virt_vbt_generation() Date: Tue, 1 Sep 2026 10:32:41 +0530 Message-ID: <20260901050241.359490-1-hrushirajg23@gmail.com> X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit strcpy() has no bound on the destination buffer, so convert this to the bounded, always-NUL-terminating strscpy() instead. The literal "BIOS_DATA_BLOCK" (15 chars + NUL) fits the 16-byte signature field exactly, so this is a no-op change in behaviour. No functional change. Signed-off-by: Hrushiraj Gandhi --- drivers/gpu/drm/i915/gvt/opregion.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/gvt/opregion.c b/drivers/gpu/drm/i915/gvt/opregion.c index d6e76ba31d60..f2527e26cd1e 100644 --- a/drivers/gpu/drm/i915/gvt/opregion.c +++ b/drivers/gpu/drm/i915/gvt/opregion.c @@ -151,7 +151,8 @@ static void virt_vbt_generation(struct vbt *v) v->header.vbt_size = sizeof(struct vbt); v->header.bdb_offset = offsetof(struct vbt, bdb_header); - strcpy(&v->bdb_header.signature[0], "BIOS_DATA_BLOCK"); + strscpy(v->bdb_header.signature, "BIOS_DATA_BLOCK", + sizeof(v->bdb_header.signature)); v->bdb_header.version = 186; /* child_dev_size = 33 */ v->bdb_header.header_size = sizeof(v->bdb_header);