diff options
| author |   Pavel Skripkin <paskripkin@gmail.com> | 2022-01-04 21:28:06 +0300 |
|---|---|---|
| committer |   Stefan Schmidt <stefan@datenfreihafen.org> | 2022-01-04 20:10:04 +0100 |
| commit | 754e4382354f7908923a1949d8dc8d05f82f09cb (patch) | |
| tree | 377b65b1c3153bc09d1dd724d8788582761bd278 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | sch_qfq: prevent shift-out-of-bounds in qfq_init_qdisc (diff) | |
| download | wireguard-linux-754e4382354f7908923a1949d8dc8d05f82f09cb.tar.xz wireguard-linux-754e4382354f7908923a1949d8dc8d05f82f09cb.zip | |
ieee802154: atusb: fix uninit value in atusb_set_extended_addr
Alexander reported a use of uninitialized value in
atusb_set_extended_addr(), that is caused by reading 0 bytes via
usb_control_msg().
Fix it by validating if the number of bytes transferred is actually
correct, since usb_control_msg() may read less bytes, than was requested
by caller.
Fail log:
BUG: KASAN: uninit-cmp in ieee802154_is_valid_extended_unicast_addr include/linux/ieee802154.h:310 [inline]
BUG: KASAN: uninit-cmp in atusb_set_extended_addr drivers/net/ieee802154/atusb.c:1000 [inline]
BUG: KASAN: uninit-cmp in atusb_probe.cold+0x29f/0x14db drivers/net/ieee802154/atusb.c:1056
Uninit value used in comparison: 311daa649a2003bd stack handle: 000000009a2003bd
ieee802154_is_valid_extended_unicast_addr include/linux/ieee802154.h:310 [inline]
atusb_set_extended_addr drivers/net/ieee802154/atusb.c:1000 [inline]
atusb_probe.cold+0x29f/0x14db drivers/net/ieee802154/atusb.c:1056
usb_probe_interface+0x314/0x7f0 drivers/usb/core/driver.c:396
Fixes: 7490b008d123 ("ieee802154: add support for atusb transceiver")
Reported-by: Alexander Potapenko <glider@google.com>
Acked-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/20220104182806.7188-1-paskripkin@gmail.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions