From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794061949; b=R2NrqWIweLCR07QEi2ah5Pr7rSlt8/vE+rA2uYwJgEoqtUFYYKjl4uAg/g/BN6wszsST 38OBeXkz83INZsCI9aecxNNY0eI+xXVS9C3IYgOATQULfxSYHnGOBUOIktR30sPCo9LlL TxL4p7hFmFD35UYBCTOmNA8qtOE3VPI4Q4QF421lE6Xwmcz26ALwi8UeA3bdS5QNhAnvu 12pqOV34a+eO84i2h0SvtpRis/Use0kgAmtXiAldn+2GX04tg4ZFfGH7vm8fpCqRdfPu9 ZBxeiZu8xXuTYerq71URcfC/UzNcskI4bSCIkLnD2xlT2iqr5zVwW7XluJ4egoKIv/A== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794061949; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=O/SzNIRcSBlpLc/k00FWkHeDz85/R8ENEicZQnZJPds=; b=toSEhmYalHNdhLBkr8nfW5N7fFr6ekalbzusSOQk+9MybBpbu1s4COahHQwybuFAmCDv Xk5DNZb3QpFWxuBiDmjLWl5clGhQXawpYz5OvcRtcHG/f5s+R3T8t7LYOBKh7RHxEZA6F Mb8tiJKZoLk0RygLLTteBoNedUvC+7C3iwiy7ul+8dPuzxF4u1QGnQwhPB329fvaY5IG6 iuwA8TjSv2KgN0FOs93p0QsMVX+0i2psVKKai31Nam4ZaueArLx8IWtAM2Q2+CkvWrwgZ Rg/rrb/2lZDvCkEYZwE7Aspg9pAmVpA1yxbqiMItqLb9PAOzDTxTl9pW1JJiZE+3UNQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=IKLCIyhz; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 48177606A330; Sat, 7 Nov 2026 14:32:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=IKLCIyhz Received: by smtp.kernel.org (Postfix) with ESMTPSA id E54B21F0089F; Sat, 7 Nov 2026 14:32:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1794061949; bh=O/SzNIRcSBlpLc/k00FWkHeDz85/R8ENEicZQnZJPds=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=IKLCIyhzu3+812xLnxsrZam5+KqOlNaoL+vSAQ3AdPdfSLDuJ7fWi2DNJdqHo2L4g ugxNemRfMOA2w3PRe9ZL56vUow/JsfGAvsSg3nLPIlMH2N1+JuBb+Wa0+W120O0XBJ ZhY90YVbltMjfofL5Rr+DtlnqzPkfaNIbyQvPjLI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jacopo Mondi , Xu Rao , Hans Verkuil , Sasha Levin Subject: [PATCH 6.12 0946/1536] media: m2m-deinterlace: fix default capture field Date: Sat, 7 Nov 2026 08:49:22 -0500 Message-ID: <20261107135024.226210888@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261107134957.653319350@linuxfoundation.org> References: <20261107134957.653319350@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Xu Rao [ Upstream commit 4ee3ebede5d01efdcdd88c94f9df271d2eb237de ] queue_init() initializes default formats for both the source and capture queues. It first sets the source field to V4L2_FIELD_SEQ_TB, but then stores the capture default, V4L2_FIELD_INTERLACED_TB, in the source queue again while initializing the capture queue. This overwrites the valid source default and leaves the capture field at its zero-initialized value, V4L2_FIELD_ANY. vidioc_streamon() accepts only V4L2_FIELD_SEQ_TB or V4L2_FIELD_SEQ_BT on the source queue, and requires the capture queue to use a compatible interlaced or NONE field. Userspace that relies on the default formats can therefore get -EINVAL when starting streaming. Initialize the capture field instead. The bug is usually hidden because mem2mem applications commonly call S_FMT on both queues before streaming; the TRY_FMT paths normalize the fields and S_FMT overwrites q_data[].field. Fixes: 8f0755c06b90 ("[media] media: Add mem2mem deinterlacing driver") Cc: stable@vger.kernel.org Reviewed-by: Jacopo Mondi Signed-off-by: Xu Rao Signed-off-by: Hans Verkuil Signed-off-by: Sasha Levin --- drivers/media/platform/m2m-deinterlace.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/platform/m2m-deinterlace.c b/drivers/media/platform/m2m-deinterlace.c index 5adcef80c6987..3d2a8f07c3fba 100644 --- a/drivers/media/platform/m2m-deinterlace.c +++ b/drivers/media/platform/m2m-deinterlace.c @@ -826,7 +826,7 @@ static int queue_init(void *priv, struct vb2_queue *src_vq, q_data[V4L2_M2M_DST].width = 640; q_data[V4L2_M2M_DST].height = 480; q_data[V4L2_M2M_DST].sizeimage = (640 * 480 * 3) / 2; - q_data[V4L2_M2M_SRC].field = V4L2_FIELD_INTERLACED_TB; + q_data[V4L2_M2M_DST].field = V4L2_FIELD_INTERLACED_TB; return vb2_queue_init(dst_vq); } -- 2.53.0