CVE-2021-47028

In the Linux kernel, the following vulnerability has been resolved:

mt76: mt7915: fix txrate reporting

Properly check rate_info to fix unexpected reporting.

[ 1215.161863] Call trace:

[ 1215.164307] cfg80211_calculate_bitrate+0x124/0x200 [cfg80211]

[ 1215.170139] ieee80211s_update_metric+0x80/0xc0 [mac80211]

[ 1215.175624] ieee80211_tx_status_ext+0x508/0x838 [mac80211]

[ 1215.181190] mt7915_mcu_get_rx_rate+0x28c/0x8d0 [mt7915e]

[ 1215.186580] mt7915_mac_tx_free+0x324/0x7c0 [mt7915e]

[ 1215.191623] mt7915_queue_rx_skb+0xa8/0xd0 [mt7915e]

[ 1215.196582] mt76_dma_cleanup+0x7b0/0x11d0 [mt76]

[ 1215.201276] __napi_poll+0x38/0xf8

[ 1215.204668] napi_workfn+0x40/0x80

[ 1215.208062] process_one_work+0x1fc/0x390

[ 1215.212062] worker_thread+0x48/0x4d0

[ 1215.215715] kthread+0x120/0x128

[ 1215.218935] ret_from_fork+0x10/0x1c