This is a note to let you know that I've just added the patch titled media: coda: jpeg: Add check for kmalloc to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: media-coda-jpeg-add-check-for-kmalloc.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit deed9c8dd476bc79a9ab7c89aeaf8bd373f2eab1 Author: Jiasheng Jiang <jiasheng@xxxxxxxxxxx> Date: Tue Sep 27 09:28:13 2022 +0800 media: coda: jpeg: Add check for kmalloc [ Upstream commit f30ce3d3760b22ee33c8d9c2e223764ad30bdc5f ] As kmalloc can return NULL pointer, it should be better to check the return value and return error, same as coda_jpeg_decode_header. Fixes: 96f6f62c4656 ("media: coda: jpeg: add CODA960 JPEG encoder support") Signed-off-by: Jiasheng Jiang <jiasheng@xxxxxxxxxxx> Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/media/platform/coda/coda-jpeg.c b/drivers/media/platform/coda/coda-jpeg.c index a72f4655e5ad..b7bf529f18f7 100644 --- a/drivers/media/platform/coda/coda-jpeg.c +++ b/drivers/media/platform/coda/coda-jpeg.c @@ -1052,10 +1052,16 @@ static int coda9_jpeg_start_encoding(struct coda_ctx *ctx) v4l2_err(&dev->v4l2_dev, "error loading Huffman tables\n"); return ret; } - if (!ctx->params.jpeg_qmat_tab[0]) + if (!ctx->params.jpeg_qmat_tab[0]) { ctx->params.jpeg_qmat_tab[0] = kmalloc(64, GFP_KERNEL); - if (!ctx->params.jpeg_qmat_tab[1]) + if (!ctx->params.jpeg_qmat_tab[0]) + return -ENOMEM; + } + if (!ctx->params.jpeg_qmat_tab[1]) { ctx->params.jpeg_qmat_tab[1] = kmalloc(64, GFP_KERNEL); + if (!ctx->params.jpeg_qmat_tab[1]) + return -ENOMEM; + } coda_set_jpeg_compression_quality(ctx, ctx->params.jpeg_quality); return 0;