From: Bjorn Andersson Date: Fri, 27 Jan 2017 10:06:36 +0000 (-0800) Subject: remoteproc: qcom: mdt_loader: Don't overwrite firmware object X-Git-Tag: v4.10.2~36 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=28cd8db6a715f55d4e4d924afc34f44b8bedfa7d;p=thirdparty%2Fkernel%2Fstable.git remoteproc: qcom: mdt_loader: Don't overwrite firmware object 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 Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/remoteproc/qcom_mdt_loader.c b/drivers/remoteproc/qcom_mdt_loader.c index 2ff18cd6c0964..2393398f63ea9 100644 --- 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)