diff options
| author | Daisuke Nojiri <dnojiri@chromium.org> | 2014-05-02 10:36:43 -0700 |
|---|---|---|
| committer | Marc Jones <marc.jones@se-eng.com> | 2014-12-30 22:44:24 +0100 |
| commit | afde961adfcba92b30b422b8eb681d91c257de34 (patch) | |
| tree | aae7425d3bef2cfab8d4702fb8d02de44a5f9209 /src | |
| parent | 704c006479428db9133ce3d7024af8c0fa5a8ce5 (diff) | |
| download | coreboot-afde961adfcba92b30b422b8eb681d91c257de34.tar.xz | |
vboot: Convert response_length from uint32_t to size_t in VbExTpmSendReceive
Length arguments for VbExTpmSendReceive have type uint32_t but it calls function
which expects size_t. This change converts uint32_t to size_t on call and
size_t to uint32_t on return.
BUG=None
BRANCH=None
TEST=Booted Nyan Big to Linux
Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Change-Id: I1971488baae2d060c0cddec7749461c91602a4f9
Original-Reviewed-on: https://chromium-review.googlesource.com/198016
(cherry picked from commit 6830747eb47568f2a2b494624522d37d8945c030)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I20741759e7bbd60dd7044c532287d6b55047e19a
Reviewed-on: http://review.coreboot.org/7894
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/vendorcode/google/chromeos/vboot_wrapper.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/vendorcode/google/chromeos/vboot_wrapper.c b/src/vendorcode/google/chromeos/vboot_wrapper.c index 5611451654..5aa0066944 100644 --- a/src/vendorcode/google/chromeos/vboot_wrapper.c +++ b/src/vendorcode/google/chromeos/vboot_wrapper.c @@ -225,9 +225,13 @@ VbError_t VbExTpmOpen(void) VbError_t VbExTpmSendReceive(const uint8_t *request, uint32_t request_length, uint8_t *response, uint32_t *response_length) { - if (gcontext->tis_sendrecv(request, request_length, - response, response_length)) + size_t len = *response_length; + if (gcontext->tis_sendrecv(request, request_length, response, &len)) return VBERROR_UNKNOWN; + /* check 64->32bit overflow and (re)check response buffer overflow */ + if (len > *response_length) + return VBERROR_UNKNOWN; + *response_length = len; return VBERROR_SUCCESS; } |