CVE-2025-37870 (GCVE-0-2025-37870)

Vulnerability from cvelistv5 – Published: 2025-05-09 06:43 – Updated: 2026-05-11 21:16
VLAI
Title
drm/amd/display: prevent hang on link training fail
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: prevent hang on link training fail [Why] When link training fails, the phy clock will be disabled. However, in enable_streams, it is assumed that link training succeeded and the mux selects the phy clock, causing a hang when a register write is made. [How] When enable_stream is hit, check if link training failed. If it did, fall back to the ref clock to avoid a hang and keep the system in a recoverable state.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 7462475e3a06fbb0b36243b391296f9f411e9041 , < 0363c03672cd3191f037905bf981eb523a3b71b1 (git)
Affected: 7462475e3a06fbb0b36243b391296f9f411e9041 , < 04bf4f2a497e9877c425c5124652e61fb8a1a0aa (git)
Affected: 7462475e3a06fbb0b36243b391296f9f411e9041 , < 8058061ed9d6bc259d1e678607b07d259342c08f (git)
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Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.12.25 , ≤ 6.12.* (semver)
Unaffected: 6.14.4 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
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            "drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c",
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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

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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.


Detection rules are retrieved from Rulezet.