CVE-2026-43381 (GCVE-0-2026-43381)

Vulnerability from cvelistv5 – Published: 2026-05-08 14:21 – Updated: 2026-05-11 22:23
VLAI
Title
nouveau/dpcd: return EBUSY for aux xfer if the device is asleep
Summary
In the Linux kernel, the following vulnerability has been resolved: nouveau/dpcd: return EBUSY for aux xfer if the device is asleep If we have runtime suspended, and userspace wants to use /dev/drm_dp_* then just tell it the device is busy instead of crashing in the GSP code. WARNING: CPU: 2 PID: 565741 at drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c:164 r535_gsp_msgq_wait+0x9a/0xb0 [nouveau] CPU: 2 UID: 0 PID: 565741 Comm: fwupd Not tainted 6.18.10-200.fc43.x86_64 #1 PREEMPT(lazy) Hardware name: LENOVO 20QTS0PQ00/20QTS0PQ00, BIOS N2OET65W (1.52 ) 08/05/2024 RIP: 0010:r535_gsp_msgq_wait+0x9a/0xb0 [nouveau] This is a simple fix to get backported. We should probably engineer a proper power domain solution to wake up devices and keep them awake while fw updates are happening.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 8894f4919bc43f821775db2cfff4b917871b2102 , < 178df7c91e6c202579284df9f79d1592a514cdcf (git)
Affected: 8894f4919bc43f821775db2cfff4b917871b2102 , < 4df518aa196085909fd7e32518ecd27fba60ed69 (git)
Affected: 8894f4919bc43f821775db2cfff4b917871b2102 , < cd24cab2023aa46b595bc6b9cc39d8973d9d0a8c (git)
Affected: 8894f4919bc43f821775db2cfff4b917871b2102 , < fad178ae894930520519ead3c8e0150641466360 (git)
Affected: 8894f4919bc43f821775db2cfff4b917871b2102 , < 6bdd2d70c338d52c387d3b3aadc596784ae81b01 (git)
Affected: 8894f4919bc43f821775db2cfff4b917871b2102 , < ad8fa5bff53f5d1f8394f996850da8ce070eaee3 (git)
Affected: 8894f4919bc43f821775db2cfff4b917871b2102 , < 24639553a016578222ac597db924dfb6fa5ec8b5 (git)
Affected: 8894f4919bc43f821775db2cfff4b917871b2102 , < 8f3c6f08ababad2e3bdd239728cf66a9949446b4 (git)
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Linux Linux Affected: 3.16
Unaffected: 0 , < 3.16 (semver)
Unaffected: 5.10.253 , ≤ 5.10.* (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.167 , ≤ 6.1.* (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.78 , ≤ 6.12.* (semver)
Unaffected: 6.18.19 , ≤ 6.18.* (semver)
Unaffected: 6.19.9 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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  }
}


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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.