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authorOhad Ben-Cohen <ohad@wizery.com>2012-02-14 01:12:24 +0400
committerOhad Ben-Cohen <ohad@wizery.com>2012-02-28 20:03:40 +0400
commit40b78b2cc75315a76ab1863be744d8580030f924 (patch)
treeca7b9a5299fd5346c61491e333491354beb92794 /drivers/remoteproc
parente12bc14b88d44e5c1456dccb59ff58103f6c6edc (diff)
downloadlinux-40b78b2cc75315a76ab1863be744d8580030f924.tar.xz
remoteproc: make sure we're parsing a 32bit firmware
Make sure we're parsing a 32bit image, since we only support the ELF32 binary format at this point. This should prevent unexpected behavior with non 32bit binaries. Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Mark Grosen <mgrosen@ti.com> Cc: Suman Anna <s-anna@ti.com> Cc: Fernando Guzman Lugo <fernando.lugo@ti.com> Cc: Rob Clark <rob@ti.com> Cc: Ludovic BARRE <ludovic.barre@stericsson.com> Cc: Loic PALLARDY <loic.pallardy@stericsson.com> Cc: Omar Ramirez Luna <omar.luna@linaro.org>
Diffstat (limited to 'drivers/remoteproc')
-rw-r--r--drivers/remoteproc/remoteproc_core.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 729911b67a9a..8990c51c16f0 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -840,6 +840,7 @@ static int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw)
const char *name = rproc->firmware;
struct device *dev = rproc->dev;
struct elf32_hdr *ehdr;
+ char class;
if (!fw) {
dev_err(dev, "failed to load %s\n", name);
@@ -853,6 +854,13 @@ static int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw)
ehdr = (struct elf32_hdr *)fw->data;
+ /* We only support ELF32 at this point */
+ class = ehdr->e_ident[EI_CLASS];
+ if (class != ELFCLASS32) {
+ dev_err(dev, "Unsupported class: %d\n", class);
+ return -EINVAL;
+ }
+
/* We assume the firmware has the same endianess as the host */
# ifdef __LITTLE_ENDIAN
if (ehdr->e_ident[EI_DATA] != ELFDATA2LSB) {