linux/drivers/net/usb
Marcin Kozlowski afb8e24652 net: usb: aqc111: Fix out-of-bounds accesses in RX fixup
aqc111_rx_fixup() contains several out-of-bounds accesses that can be
triggered by a malicious (or defective) USB device, in particular:

 - The metadata array (desc_offset..desc_offset+2*pkt_count) can be out of bounds,
   causing OOB reads and (on big-endian systems) OOB endianness flips.
 - A packet can overlap the metadata array, causing a later OOB
   endianness flip to corrupt data used by a cloned SKB that has already
   been handed off into the network stack.
 - A packet SKB can be constructed whose tail is far beyond its end,
   causing out-of-bounds heap data to be considered part of the SKB's
   data.

Found doing variant analysis. Tested it with another driver (ax88179_178a), since
I don't have a aqc111 device to test it, but the code looks very similar.

Signed-off-by: Marcin Kozlowski <marcinguy@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-06 15:22:49 +01:00
..
Kconfig
Makefile
aqc111.c
aqc111.h
asix.h
asix_common.c
asix_devices.c
ax88172a.c
ax88179_178a.c
catc.c
cdc-phonet.c
cdc_eem.c
cdc_ether.c
cdc_mbim.c
cdc_ncm.c
cdc_subset.c
ch9200.c
cx82310_eth.c
dm9601.c
gl620a.c
hso.c
huawei_cdc_ncm.c
int51x1.c
ipheth.c
kalmia.c
kaweth.c
lan78xx.c
lan78xx.h
lg-vl600.c
mcs7830.c
net1080.c
pegasus.c
pegasus.h
plusb.c
qmi_wwan.c
r8152.c
r8153_ecm.c
rndis_host.c
rtl8150.c
sierra_net.c
smsc75xx.c
smsc75xx.h
smsc95xx.c
smsc95xx.h
sr9700.c
sr9700.h
sr9800.c
sr9800.h
usbnet.c
zaurus.c