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| author | Benjamin Tissoires | 2013-09-11 21:56:58 +0200 |
|---|---|---|
| committer | Jiri Kosina | 2013-09-13 15:13:52 +0200 |
| commit | 8821f5dc187bdf16cfb32ef5aa8c3035273fa79a (patch) | |
| tree | 5cefd4e48b6eb226d8da4d887cb56dac67db64fa /drivers/hid/hid-lenovo-tpkbd.c | |
| parent | HID: logitech-dj: validate output report details (diff) | |
| download | kernel-qcow2-linux-8821f5dc187bdf16cfb32ef5aa8c3035273fa79a.tar.gz kernel-qcow2-linux-8821f5dc187bdf16cfb32ef5aa8c3035273fa79a.tar.xz kernel-qcow2-linux-8821f5dc187bdf16cfb32ef5aa8c3035273fa79a.zip | |
HID: multitouch: validate indexes details
When working on report indexes, always validate that they are in bounds.
Without this, a HID device could report a malicious feature report that
could trick the driver into a heap overflow:
[ 634.885003] usb 1-1: New USB device found, idVendor=0596, idProduct=0500
...
[ 676.469629] BUG kmalloc-192 (Tainted: G W ): Redzone overwritten
Note that we need to change the indexes from s8 to s16 as they can
be between -1 and 255.
CVE-2013-2897
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-lenovo-tpkbd.c')
0 files changed, 0 insertions, 0 deletions