CVE-2024-27052 (GCVE-0-2024-27052)
Vulnerability from cvelistv5 – Published: 2024-05-01 12:54 – Updated: 2026-08-05 11:29
VLAI
EPSS
VEX
Title
wifi: rtl8xxxu: add cancel_work_sync() for c2hcmd_work
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: rtl8xxxu: add cancel_work_sync() for c2hcmd_work
The workqueue might still be running, when the driver is stopped. To
avoid a use-after-free, call cancel_work_sync() in rtl8xxxu_stop().
Severity
7.8 (High)
7.4 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-05-13 15:54 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
9 references
Impacted products
5 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
e542e66b7c2ee2adeefdbb7f259f2f60cadf2819 , < dddedfa3b29a63c2ca4336663806a6128b8545b4
(git)
Affected: e542e66b7c2ee2adeefdbb7f259f2f60cadf2819 , < ac512507ac89c01ed6cd4ca53032f52cdb23ea59 (git) Affected: e542e66b7c2ee2adeefdbb7f259f2f60cadf2819 , < 3518cea837de4d106efa84ddac18a07b6de1384e (git) Affected: e542e66b7c2ee2adeefdbb7f259f2f60cadf2819 , < 156012667b85ca7305cb363790d3ae8519a6f41e (git) Affected: e542e66b7c2ee2adeefdbb7f259f2f60cadf2819 , < 7059cdb69f8e1a2707dd1e2f363348b507ed7707 (git) Affected: e542e66b7c2ee2adeefdbb7f259f2f60cadf2819 , < 58fe3bbddfec10c6b216096d8c0e517cd8463e3a (git) Affected: e542e66b7c2ee2adeefdbb7f259f2f60cadf2819 , < 1213acb478a7181cd73eeaf00db430f1e45b1361 (git) |
guessed | |
| Linux | Linux |
Affected:
5.5
Unaffected: 0 , < 5.5 (semver) Unaffected: 5.10.214 , ≤ 5.10.* (semver) Unaffected: 5.15.153 , ≤ 5.15.* (semver) Unaffected: 6.1.83 , ≤ 6.1.* (semver) Unaffected: 6.6.23 , ≤ 6.6.* (semver) Unaffected: 6.7.11 , ≤ 6.7.* (semver) Unaffected: 6.8.2 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix) |
guessed | |
| linux | linux_kernel |
Affected:
5.5
cpe:2.3:o:linux:linux_kernel:5.5:*:*:*:*:*:*:* |
||
| linux | linux_kernel |
Affected:
e542e66b7c2e , < 58fe3bbddfec
(custom)
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* |
||
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
guessed |
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"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.83",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.23",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"version": "6.7.11",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.8.*",
"status": "unaffected",
"version": "6.8.2",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.9",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.214",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.153",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.83",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.23",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.7.11",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.8.2",
"versionStartIncluding": "5.5",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.9",
"versionStartIncluding": "5.5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtl8xxxu: add cancel_work_sync() for c2hcmd_work\n\nThe workqueue might still be running, when the driver is stopped. To\navoid a use-after-free, call cancel_work_sync() in rtl8xxxu_stop()."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The exploitable window is opened by a local action that stops the device (`ip link set down`, suspend, rfkill, driver unbind) \u2014 a remote or adjacent Wi-Fi attacker can queue `c2hcmd_work` but cannot cause `rtl8xxxu_stop()`/`ieee80211_free_hw()` to run. This matches the AV:L scoring of the directly analogous `rtl8187_stop()` teardown UAF (CVE-2025-38604).\nAC:L - The attacker controls both sides of the race: Wi-Fi/BT-coex activity keeps C2H events and RA reports flowing so `schedule_work(\u0026priv-\u003ec2hcmd_work)` fires continuously, and the attacker chooses the exact moment to trigger the stop/unbind, so the window can be hit repeatedly until won.\nPR:L - An ordinary local user in a normal desktop/embedded session can reach the teardown path via logind-mediated suspend or rfkill, and no capability is needed to generate the Wi-Fi traffic that keeps the work queued; consistent with PR:L used across the driver-teardown UAF class.\nUI:N - The attacker performs both the traffic generation and the interface stop themselves; no separate victim has to open a file, mount anything, or take any action.\nS:U - The use-after-free corrupts kernel heap memory within the same kernel security authority; there is no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The freed `rtl8xxxu_priv` slab object can be reclaimed and groomed by the attacker, and the work callback reads through it (`priv-\u003efops`, `priv-\u003eudev-\u003edev`, `priv-\u003ec2hcmd_queue`), yielding a use-after-free read primitive that can disclose arbitrary kernel memory.\nI:H - The stale work item writes into the freed object (skb dequeue/list manipulation on `c2hcmd_queue`, updates to `priv-\u003era_report` and `priv-\u003ebt_coex`), and the workqueue core manipulates the freed embedded `work_struct`, giving a controlled-write primitive on reclaimed heap memory that is leverageable for control-flow hijack.\nA:H - Even unexploited, the use-after-free reliably produces a kernel oops or panic when the work runs against freed memory, and it can be retriggered on every device stop."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T11:29:14.215Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/dddedfa3b29a63c2ca4336663806a6128b8545b4"
},
{
"url": "https://git.kernel.org/stable/c/ac512507ac89c01ed6cd4ca53032f52cdb23ea59"
},
{
"url": "https://git.kernel.org/stable/c/3518cea837de4d106efa84ddac18a07b6de1384e"
},
{
"url": "https://git.kernel.org/stable/c/156012667b85ca7305cb363790d3ae8519a6f41e"
},
{
"url": "https://git.kernel.org/stable/c/7059cdb69f8e1a2707dd1e2f363348b507ed7707"
},
{
"url": "https://git.kernel.org/stable/c/58fe3bbddfec10c6b216096d8c0e517cd8463e3a"
},
{
"url": "https://git.kernel.org/stable/c/1213acb478a7181cd73eeaf00db430f1e45b1361"
}
],
"title": "wifi: rtl8xxxu: add cancel_work_sync() for c2hcmd_work",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-27052",
"datePublished": "2024-05-01T12:54:42.547Z",
"dateReserved": "2024-02-19T14:20:24.214Z",
"dateUpdated": "2026-08-05T11:29:14.215Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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