Lorenzo Bianconi
0184ede0ec
wifi: mac8021: fix possible oob access in ieee80211_get_rate_duration
...
[ Upstream commit 3e8f7abcc3473bc9603323803aeaed4ffcc3a2ab ]
Fix possible out-of-bound access in ieee80211_get_rate_duration routine
as reported by the following UBSAN report:
UBSAN: array-index-out-of-bounds in net/mac80211/airtime.c:455:47
index 15 is out of range for type 'u16 [12]'
CPU: 2 PID: 217 Comm: kworker/u32:10 Not tainted 6.1.0-060100rc3-generic
Hardware name: Acer Aspire TC-281/Aspire TC-281, BIOS R01-A2 07/18/2017
Workqueue: mt76 mt76u_tx_status_data [mt76_usb]
Call Trace:
<TASK>
show_stack+0x4e/0x61
dump_stack_lvl+0x4a/0x6f
dump_stack+0x10/0x18
ubsan_epilogue+0x9/0x43
__ubsan_handle_out_of_bounds.cold+0x42/0x47
ieee80211_get_rate_duration.constprop.0+0x22f/0x2a0 [mac80211]
? ieee80211_tx_status_ext+0x32e/0x640 [mac80211]
ieee80211_calc_rx_airtime+0xda/0x120 [mac80211]
ieee80211_calc_tx_airtime+0xb4/0x100 [mac80211]
mt76x02_send_tx_status+0x266/0x480 [mt76x02_lib]
mt76x02_tx_status_data+0x52/0x80 [mt76x02_lib]
mt76u_tx_status_data+0x67/0xd0 [mt76_usb]
process_one_work+0x225/0x400
worker_thread+0x50/0x3e0
? process_one_work+0x400/0x400
kthread+0xe9/0x110
? kthread_complete_and_exit+0x20/0x20
ret_from_fork+0x22/0x30
Fixes: db3e1c40cf2f ("mac80211: Import airtime calculation code from mt76")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-12-08 11:23:56 +01:00
..
2021-09-15 09:50:34 +02:00
2022-12-02 17:40:00 +01:00
2021-07-31 08:16:11 +02:00
2022-07-29 17:19:07 +02:00
2021-04-07 15:00:08 +02:00
2022-10-30 09:41:16 +01:00
2022-06-22 14:13:17 +02:00
2022-05-18 10:23:42 +02:00
2022-11-25 17:45:40 +01:00
2022-11-25 17:45:43 +01:00
2021-07-14 16:56:29 +02:00
2022-12-02 17:39:57 +01:00
2022-11-25 17:45:46 +01:00
2022-11-16 09:57:17 +01:00
2022-05-25 09:17:56 +02:00
2022-12-02 17:40:00 +01:00
2022-03-08 19:09:37 +01:00
2022-12-02 17:40:01 +01:00
2022-08-31 17:15:19 +02:00
2022-05-09 09:05:02 +02:00
2021-12-17 10:14:41 +01:00
2022-10-30 09:41:17 +01:00
2022-11-03 23:57:51 +09:00
2022-12-02 17:40:05 +01:00
2022-12-02 17:40:01 +01:00
2021-03-07 12:34:05 +01:00
2022-11-25 17:45:56 +01:00
2022-12-02 17:39:58 +01:00
2022-11-25 17:45:54 +01:00
2022-04-27 13:53:50 +02:00
2021-02-10 09:29:14 +01:00
2022-03-28 09:57:10 +02:00
2022-12-08 11:23:56 +01:00
2022-11-03 23:57:49 +09:00
2022-09-08 11:11:40 +02:00
2022-08-31 17:15:19 +02:00
2022-01-05 12:40:32 +01:00
2022-12-02 17:40:01 +01:00
2022-04-13 21:01:00 +02:00
2022-08-25 11:38:07 +02:00
2022-01-27 10:54:03 +01:00
2022-12-02 17:40:01 +01:00
2022-12-02 17:40:00 +01:00
2022-09-05 10:28:59 +02:00
2022-01-11 15:25:01 +01:00
2021-03-07 12:34:07 +01:00
2022-08-25 11:38:23 +02:00
2022-10-26 13:25:23 +02:00
2020-11-12 09:18:06 +01:00
2022-11-10 18:14:19 +01:00
2022-12-02 17:39:59 +01:00
2022-12-02 17:40:01 +01:00
2022-11-25 17:45:43 +01:00
2022-09-28 11:10:36 +02:00
2021-11-18 14:04:27 +01:00
2022-08-31 17:15:15 +02:00
2021-02-07 15:37:12 +01:00
2022-12-02 17:40:01 +01:00
2022-08-03 12:00:46 +02:00
2022-10-26 13:25:55 +02:00
2022-10-26 13:25:22 +02:00
2022-12-08 11:23:56 +01:00
2022-11-25 17:45:47 +01:00
2022-10-15 07:55:51 +02:00
2022-12-02 17:39:58 +01:00
2021-06-18 10:00:06 +02:00
2022-08-31 17:15:21 +02:00