CVE-2021-47028 (GCVE-0-2021-47028)
Vulnerability from cvelistv5 – Published: 2024-02-28 08:13 – Updated: 2026-05-11 13:46
VLAI
EPSS
VEX
Title
mt76: mt7915: fix txrate reporting
Summary
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
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
e57b7901469fc0b021930b83a8094baaf3d81b09 , < dfc8a71448c7d4fec38fb22bdc8a76d79c14b6da
(git)
Affected: e57b7901469fc0b021930b83a8094baaf3d81b09 , < 4bd926e5ca88eac4d95eacb806b229f8729bc62e (git) Affected: e57b7901469fc0b021930b83a8094baaf3d81b09 , < f43b941fd61003659a3f0e039595e5e525917aa8 (git) |
|
| Linux | Linux |
Affected:
5.8
Unaffected: 0 , < 5.8 (semver) Unaffected: 5.11.21 , ≤ 5.11.* (semver) Unaffected: 5.12.4 , ≤ 5.12.* (semver) Unaffected: 5.13 , ≤ * (original_commit_for_fix) |
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"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: mt76: mt7915: fix txrate reporting",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-47028.json",
"version": "3"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/dfc8a71448c7d4fec38fb22bdc8a76d79c14b6da\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/4bd926e5ca88eac4d95eacb806b229f8729bc62e\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/f43b941fd61003659a3f0e039595e5e525917aa8\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:24:39.908Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47028\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T15:58:03.010297Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:16.523Z\"}}], \"cna\": {\"title\": \"mt76: mt7915: fix txrate reporting\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"e57b7901469fc0b021930b83a8094baaf3d81b09\", \"lessThan\": \"dfc8a71448c7d4fec38fb22bdc8a76d79c14b6da\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e57b7901469fc0b021930b83a8094baaf3d81b09\", \"lessThan\": \"4bd926e5ca88eac4d95eacb806b229f8729bc62e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"e57b7901469fc0b021930b83a8094baaf3d81b09\", \"lessThan\": \"f43b941fd61003659a3f0e039595e5e525917aa8\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/wireless/mediatek/mt76/mt7915/mcu.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.8\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.8\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.11.21\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.11.*\"}, {\"status\": \"unaffected\", \"version\": \"5.12.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.12.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/wireless/mediatek/mt76/mt7915/mcu.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/dfc8a71448c7d4fec38fb22bdc8a76d79c14b6da\"}, {\"url\": \"https://git.kernel.org/stable/c/4bd926e5ca88eac4d95eacb806b229f8729bc62e\"}, {\"url\": \"https://git.kernel.org/stable/c/f43b941fd61003659a3f0e039595e5e525917aa8\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmt76: mt7915: fix txrate reporting\\n\\nProperly check rate_info to fix unexpected reporting.\\n\\n[ 1215.161863] Call trace:\\n[ 1215.164307] cfg80211_calculate_bitrate+0x124/0x200 [cfg80211]\\n[ 1215.170139] ieee80211s_update_metric+0x80/0xc0 [mac80211]\\n[ 1215.175624] ieee80211_tx_status_ext+0x508/0x838 [mac80211]\\n[ 1215.181190] mt7915_mcu_get_rx_rate+0x28c/0x8d0 [mt7915e]\\n[ 1215.186580] mt7915_mac_tx_free+0x324/0x7c0 [mt7915e]\\n[ 1215.191623] mt7915_queue_rx_skb+0xa8/0xd0 [mt7915e]\\n[ 1215.196582] mt76_dma_cleanup+0x7b0/0x11d0 [mt76]\\n[ 1215.201276] __napi_poll+0x38/0xf8\\n[ 1215.204668] napi_workfn+0x40/0x80\\n[ 1215.208062] process_one_work+0x1fc/0x390\\n[ 1215.212062] worker_thread+0x48/0x4d0\\n[ 1215.215715] kthread+0x120/0x128\\n[ 1215.218935] ret_from_fork+0x10/0x1c\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.11.21\", \"versionStartIncluding\": \"5.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.12.4\", \"versionStartIncluding\": \"5.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.13\", \"versionStartIncluding\": \"5.8\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T13:46:33.696Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2021-47028\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T13:46:33.696Z\", \"dateReserved\": \"2024-02-27T18:42:55.961Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-02-28T08:13:39.004Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
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}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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