CVE-2024-40977 (GCVE-0-2024-40977)
Vulnerability from cvelistv5 – Published: 2024-07-12 12:32 – Updated: 2026-05-11 20:23
VLAI
EPSS
VEX
Title
wifi: mt76: mt7921s: fix potential hung tasks during chip recovery
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7921s: fix potential hung tasks during chip recovery
During chip recovery (e.g. chip reset), there is a possible situation that
kernel worker reset_work is holding the lock and waiting for kernel thread
stat_worker to be parked, while stat_worker is waiting for the release of
the same lock.
It causes a deadlock resulting in the dumping of hung tasks messages and
possible rebooting of the device.
This patch prevents the execution of stat_worker during the chip recovery.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 17:02 UTC
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
7bc04215a66b60e198aecaee8418f6d79fa19faa , < 0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08
(git)
Affected: 7bc04215a66b60e198aecaee8418f6d79fa19faa , < 85edd783f4539a994d66c4c014d5858f490b7a02 (git) Affected: 7bc04215a66b60e198aecaee8418f6d79fa19faa , < e974dd4c22a23ec3ce579fb6d31a674ac0435da9 (git) Affected: 7bc04215a66b60e198aecaee8418f6d79fa19faa , < ecf0b2b8a37c8464186620bef37812a117ff6366 (git) |
guessed | |
| Linux | Linux |
Affected:
4.16
Unaffected: 0 , < 4.16 (semver) Unaffected: 6.1.96 , ≤ 6.1.* (semver) Unaffected: 6.6.36 , ≤ 6.6.* (semver) Unaffected: 6.9.7 , ≤ 6.9.* (semver) Unaffected: 6.10 , ≤ * (original_commit_for_fix) |
guessed |
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"current_release_date": "2026-06-28T07:16:09+00:00",
"cve": "CVE-2024-40977",
"id": "CVE-2024-40977",
"initial_release_date": "2024-07-12T00:00:00+00:00",
"product_status:fixed": "429",
"product_status:known_affected": "22",
"product_status:known_not_affected": "42",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: wifi: mt76: mt7921s: fix potential hung tasks during chip recovery",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-40977.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-08-29T01:52:20Z",
"cve": "CVE-2024-40977",
"id": "CVE-2024-40977",
"initial_release_date": "2024-07-17T03:32:37Z",
"product_status:known_affected": "330",
"product_status:known_not_affected": "287",
"product_status:recommended": "702",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2024-40977",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-40977.json",
"version": "68"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/85edd783f4539a994d66c4c014d5858f490b7a02\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/e974dd4c22a23ec3ce579fb6d31a674ac0435da9\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/ecf0b2b8a37c8464186620bef37812a117ff6366\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T04:39:55.879Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-40977\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T17:02:34.340786Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:22.222Z\"}}], \"cna\": {\"title\": \"wifi: mt76: mt7921s: fix potential hung tasks during chip recovery\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"7bc04215a66b60e198aecaee8418f6d79fa19faa\", \"lessThan\": \"0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"7bc04215a66b60e198aecaee8418f6d79fa19faa\", \"lessThan\": \"85edd783f4539a994d66c4c014d5858f490b7a02\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"7bc04215a66b60e198aecaee8418f6d79fa19faa\", \"lessThan\": \"e974dd4c22a23ec3ce579fb6d31a674ac0435da9\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"7bc04215a66b60e198aecaee8418f6d79fa19faa\", \"lessThan\": \"ecf0b2b8a37c8464186620bef37812a117ff6366\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/net/wireless/mediatek/mt76/mt7921/mac.c\", \"drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c\", \"drivers/net/wireless/mediatek/mt76/mt7921/sdio_mac.c\", \"drivers/net/wireless/mediatek/mt76/sdio.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"4.16\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"4.16\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.1.96\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.36\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.7\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/net/wireless/mediatek/mt76/mt7921/mac.c\", \"drivers/net/wireless/mediatek/mt76/mt7921/pci_mac.c\", \"drivers/net/wireless/mediatek/mt76/mt7921/sdio_mac.c\", \"drivers/net/wireless/mediatek/mt76/sdio.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/0b81faa05b0b9feb3ae2d69be1d21f0d126ecb08\"}, {\"url\": \"https://git.kernel.org/stable/c/85edd783f4539a994d66c4c014d5858f490b7a02\"}, {\"url\": \"https://git.kernel.org/stable/c/e974dd4c22a23ec3ce579fb6d31a674ac0435da9\"}, {\"url\": \"https://git.kernel.org/stable/c/ecf0b2b8a37c8464186620bef37812a117ff6366\"}], \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: mt76: mt7921s: fix potential hung tasks during chip recovery\\n\\nDuring chip recovery (e.g. chip reset), there is a possible situation that\\nkernel worker reset_work is holding the lock and waiting for kernel thread\\nstat_worker to be parked, while stat_worker is waiting for the release of\\nthe same lock.\\nIt causes a deadlock resulting in the dumping of hung tasks messages and\\npossible rebooting of the device.\\n\\nThis patch prevents the execution of stat_worker during the chip recovery.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-01-17T15:56:08.500Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2024-40977\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-01-17T15:56:08.500Z\", \"dateReserved\": \"2024-07-12T12:17:45.603Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-07-12T12:32:13.447Z\", \"assignerShortName\": \"Linux\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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