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[68.48.65.54]) by smtp.gmail.com with ESMTPSA id af79cd13be357-914f87017a0sm564942385a.15.2026.05.27.12.48.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 27 May 2026 12:48:16 -0700 (PDT) From: Michael Bommarito To: Detlev Casanova , Ezequiel Garcia , Mauro Carvalho Chehab Cc: Hans Verkuil , Nicolas Dufresne , Heiko Stuebner , linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH v2 1/3] media: rkvdec: hevc: tighten EXT SPS RPS control dimensions Date: Wed, 27 May 2026 15:47:35 -0400 Message-ID: <20260527194737.1999409-2-michael.bommarito@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260527194737.1999409-1-michael.bommarito@gmail.com> References: <20260513181922.2075438-1-michael.bommarito@gmail.com> <20260527194737.1999409-1-michael.bommarito@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 7bit The VDPU381 HEVC driver registers V4L2_CID_STATELESS_HEVC_EXT_SPS_ST_RPS and V4L2_CID_STATELESS_HEVC_EXT_SPS_LT_RPS with .cfg.dims = { 65 }, but the HEVC spec caps num_short_term_ref_pic_sets at 64 (ITU-T H.265 7.4.8) and num_long_term_ref_pics_sps at 32 (7.4.3.2.1). The hardware descriptor table (struct rkvdec_rps) sizes match those spec limits: refs[32] and short_term_ref_sets[64]. Reduce the dims to { 64 } and { 32 } respectively so the V4L2 control framework rejects oversized payloads before any driver code runs. Fixes: c9a59dc2acc7 ("media: rkvdec: Add HEVC support for the VDPU381 variant") Cc: stable@vger.kernel.org Suggested-by: Detlev Casanova Assisted-by: Claude:claude-opus-4-7 Signed-off-by: Michael Bommarito --- drivers/media/platform/rockchip/rkvdec/rkvdec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/rockchip/rkvdec/rkvdec.c b/drivers/media/platform/rockchip/rkvdec/rkvdec.c index 1d1e9bfef8e96..4fd06f4c04db0 100644 --- a/drivers/media/platform/rockchip/rkvdec/rkvdec.c +++ b/drivers/media/platform/rockchip/rkvdec/rkvdec.c @@ -278,12 +278,12 @@ static const struct rkvdec_ctrl_desc vdpu38x_hevc_ctrl_descs[] = { { .cfg.id = V4L2_CID_STATELESS_HEVC_EXT_SPS_ST_RPS, .cfg.ops = &rkvdec_ctrl_ops, - .cfg.dims = { 65 }, + .cfg.dims = { 64 }, }, { .cfg.id = V4L2_CID_STATELESS_HEVC_EXT_SPS_LT_RPS, .cfg.ops = &rkvdec_ctrl_ops, - .cfg.dims = { 65 }, + .cfg.dims = { 32 }, }, }; -- 2.53.0