CVE-2021-47028

mt76: mt7915: fix txrate reporting

State: Published
Severity: 7.1 High
Published: Feb 28, 2024
Updated: Aug 5, 2026
Reserved: Feb 27, 2024

Description

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

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	e57b7901469fc0b021930b83a8094baaf3d81b09 to before dfc8a71448c7d4fec38fb22bdc8a76d79c14b6daAffected e57b7901469fc0b021930b83a8094baaf3d81b09 to before 4bd926e5ca88eac4d95eacb806b229f8729bc62eAffected e57b7901469fc0b021930b83a8094baaf3d81b09 to before f43b941fd61003659a3f0e039595e5e525917aa8Affected
LinuxLinux	5.8Affected before 5.8Not affected 5.11.21 through 5.11.Not affected 5.12.4 through 5.12.Not affected 5.13 and laterNot affected

References

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