This is a note to let you know that I've just added the patch titled remoteproc: qcom: mdt_loader: Don't overwrite firmware object to the 4.10-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: remoteproc-qcom-mdt_loader-don-t-overwrite-firmware-object.patch and it can be found in the queue-4.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 3e8b571a9a0881ba3381ca0915995696da145ab8 Mon Sep 17 00:00:00 2001 From: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> Date: Fri, 27 Jan 2017 02:06:36 -0800 Subject: remoteproc: qcom: mdt_loader: Don't overwrite firmware object From: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> commit 3e8b571a9a0881ba3381ca0915995696da145ab8 upstream. The "fw" firmware object is passed from the remoteproc core and should not be overwritten, as that results in leaked buffers and a double free of the the last firmware object. Fixes: 051fb70fd4ea ("remoteproc: qcom: Driver for the self-authenticating Hexagon v5") Signed-off-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/remoteproc/qcom_mdt_loader.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) --- a/drivers/remoteproc/qcom_mdt_loader.c +++ b/drivers/remoteproc/qcom_mdt_loader.c @@ -116,6 +116,7 @@ int qcom_mdt_load(struct rproc *rproc, const struct elf32_phdr *phdrs; const struct elf32_phdr *phdr; const struct elf32_hdr *ehdr; + const struct firmware *seg_fw; size_t fw_name_len; char *fw_name; void *ptr; @@ -154,16 +155,16 @@ int qcom_mdt_load(struct rproc *rproc, if (phdr->p_filesz) { sprintf(fw_name + fw_name_len - 3, "b%02d", i); - ret = request_firmware(&fw, fw_name, &rproc->dev); + ret = request_firmware(&seg_fw, fw_name, &rproc->dev); if (ret) { dev_err(&rproc->dev, "failed to load %s\n", fw_name); break; } - memcpy(ptr, fw->data, fw->size); + memcpy(ptr, seg_fw->data, seg_fw->size); - release_firmware(fw); + release_firmware(seg_fw); } if (phdr->p_memsz > phdr->p_filesz) Patches currently in stable-queue which might be from bjorn.andersson@xxxxxxxxxx are queue-4.10/remoteproc-qcom-mdt_loader-don-t-overwrite-firmware-object.patch