CVE-2025-38404 (GCVE-0-2025-38404)
Vulnerability from cvelistv5 – Published: 2025-07-25 13:09 – Updated: 2026-05-11 21:27
VLAI
EPSS
VEX
Title
usb: typec: displayport: Fix potential deadlock
Summary
In the Linux kernel, the following vulnerability has been resolved:
usb: typec: displayport: Fix potential deadlock
The deadlock can occur due to a recursive lock acquisition of
`cros_typec_altmode_data::mutex`.
The call chain is as follows:
1. cros_typec_altmode_work() acquires the mutex
2. typec_altmode_vdm() -> dp_altmode_vdm() ->
3. typec_altmode_exit() -> cros_typec_altmode_exit()
4. cros_typec_altmode_exit() attempts to acquire the mutex again
To prevent this, defer the `typec_altmode_exit()` call by scheduling
it rather than calling it directly from within the mutex-protected
context.
Severity
5.5 (Medium)
Assigner
References
10 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
e0359c66c1beccbe90119a63391678eabda38007 , < 749d9076735fb497aae60fbea9fff563f9ea3254
(git)
Affected: e3fb6c2c3939b4aad203cacdd613a62ce1fd032c , < eb08fca56f1f39e4038cb9bac9864464b13b00aa (git) Affected: 56846793f105cf2b39ecbde4f3ae86342091f6fc , < 7be0d1ea71f52595499da39cea484a895e8ed042 (git) Affected: 8e8a69b1f8c59f0505f8a1c0fb77191f27b75011 , < 76cf1f33e7319fe74c94ac92f9814094ee8cc84b (git) Affected: 8851e40587013db00b71d4aeaae30f5fd59b0eec , < 63cff9f57e86b2dc25d7487ca0118df89a665296 (git) Affected: 10cc2cfd3e5d0e0ec7590c4bee8bcea10e5492c4 , < c782f98eef14197affa8a7b91e6981420f109ea9 (git) Affected: 8f6a4fa7b663468bb304cb885b93326e025ae005 , < 80c25d7916a44715338d4f8924c8e52af50d0b9f (git) Affected: b4b38ffb38c91afd4dc387608db26f6fc34ed40b , < 099cf1fbb8afc3771f408109f62bdec66f85160e (git) |
guessed | |
| Linux | Linux |
Affected:
6.1.143 , < 6.1.144
(semver)
Affected: 6.6.96 , < 6.6.97 (semver) Affected: 6.12.36 , < 6.12.37 (semver) Affected: 6.15.5 , < 6.15.6 (semver) |
guessed |
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: typec: displayport: Soluciona un posible bloqueo El bloqueo puede ocurrir debido a una adquisici\u00f3n de bloqueo recursiva de `cros_typec_altmode_data::mutex`. La cadena de llamadas es la siguiente: 1. cros_typec_altmode_work() adquiere el mutex 2. typec_altmode_vdm() -\u0026gt; dp_altmode_vdm() -\u0026gt; 3. typec_altmode_exit() -\u0026gt; cros_typec_altmode_exit() 4. cros_typec_altmode_exit() intenta adquirir el mutex de nuevo Para evitar esto, aplaza la llamada a `typec_altmode_exit()` program\u00e1ndola en lugar de llamarla directamente desde dentro del contexto protegido por mutex."
}
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"scope": "UNCHANGED",
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"url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-38404.json",
"version": "3"
}
}
}
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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.
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- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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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.