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8c0427842a
An invalid packet with a length shorter than the specified length in the netlink header can lead to use-after-frees and slab-out-of-bounds in the processing of the netlink attributes, such as the following: BUG: KASAN: slab-out-of-bounds in __nla_validate_parse+0x1258/0x2010 Read of size 2 at addr ffff88800ac7952c by task kworker/0:1/12 Workqueue: events hwsim_virtio_rx_work Call Trace: <TASK> dump_stack_lvl+0x45/0x5d print_report.cold+0x5e/0x5e5 kasan_report+0xb1/0x1c0 __nla_validate_parse+0x1258/0x2010 __nla_parse+0x22/0x30 hwsim_virtio_handle_cmd.isra.0+0x13f/0x2d0 hwsim_virtio_rx_work+0x1b2/0x370 process_one_work+0x8df/0x1530 worker_thread+0x575/0x11a0 kthread+0x29d/0x340 ret_from_fork+0x22/0x30 </TASK> Discarding packets with an invalid length solves this. Therefore, skb->len must be set at reception. Change-Id: Ieaeb9a4c62d3beede274881a7c2722c6c6f477b6 Signed-off-by: Soenke Huster <soenke.huster@eknoes.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com> |
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admtek | ||
ath | ||
atmel | ||
broadcom | ||
cisco | ||
intel | ||
intersil | ||
marvell | ||
mediatek | ||
microchip | ||
purelifi | ||
quantenna | ||
ralink | ||
realtek | ||
rsi | ||
silabs | ||
st | ||
ti | ||
zydas | ||
Kconfig | ||
mac80211_hwsim.c | ||
mac80211_hwsim.h | ||
Makefile | ||
ray_cs.c | ||
ray_cs.h | ||
rayctl.h | ||
rndis_wlan.c | ||
virt_wifi.c | ||
wl3501.h | ||
wl3501_cs.c |