3e8f7abcc3
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:
|
||
|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| aead_api.c | ||
| aead_api.h | ||
| aes_ccm.h | ||
| aes_cmac.c | ||
| aes_cmac.h | ||
| aes_gcm.h | ||
| aes_gmac.c | ||
| aes_gmac.h | ||
| agg-rx.c | ||
| agg-tx.c | ||
| airtime.c | ||
| cfg.c | ||
| chan.c | ||
| debug.h | ||
| debugfs.c | ||
| debugfs.h | ||
| debugfs_key.c | ||
| debugfs_key.h | ||
| debugfs_netdev.c | ||
| debugfs_netdev.h | ||
| debugfs_sta.c | ||
| debugfs_sta.h | ||
| driver-ops.c | ||
| driver-ops.h | ||
| eht.c | ||
| ethtool.c | ||
| fils_aead.c | ||
| fils_aead.h | ||
| he.c | ||
| ht.c | ||
| ibss.c | ||
| ieee80211_i.h | ||
| iface.c | ||
| key.c | ||
| key.h | ||
| led.c | ||
| led.h | ||
| link.c | ||
| main.c | ||
| mesh.c | ||
| mesh.h | ||
| mesh_hwmp.c | ||
| mesh_pathtbl.c | ||
| mesh_plink.c | ||
| mesh_ps.c | ||
| mesh_sync.c | ||
| michael.c | ||
| michael.h | ||
| mlme.c | ||
| ocb.c | ||
| offchannel.c | ||
| pm.c | ||
| rate.c | ||
| rate.h | ||
| rc80211_minstrel_ht.c | ||
| rc80211_minstrel_ht.h | ||
| rc80211_minstrel_ht_debugfs.c | ||
| rx.c | ||
| s1g.c | ||
| scan.c | ||
| spectmgmt.c | ||
| sta_info.c | ||
| sta_info.h | ||
| status.c | ||
| tdls.c | ||
| tkip.c | ||
| tkip.h | ||
| trace.c | ||
| trace.h | ||
| trace_msg.h | ||
| tx.c | ||
| util.c | ||
| vht.c | ||
| wep.c | ||
| wep.h | ||
| wme.c | ||
| wme.h | ||
| wpa.c | ||
| wpa.h | ||