{"api_version":"1","generated_at":"2026-05-12T22:03:11+00:00","cve":"CVE-2026-43381","urls":{"html":"https://cve.report/CVE-2026-43381","api":"https://cve.report/api/cve/CVE-2026-43381.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43381","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43381"},"summary":{"title":"nouveau/dpcd: return EBUSY for aux xfer if the device is asleep","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnouveau/dpcd: return EBUSY for aux xfer if the device is asleep\n\nIf we have runtime suspended, and userspace wants to use /dev/drm_dp_*\nthen just tell it the device is busy instead of crashing in the GSP\ncode.\n\nWARNING: CPU: 2 PID: 565741 at drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c:164 r535_gsp_msgq_wait+0x9a/0xb0 [nouveau]\nCPU: 2 UID: 0 PID: 565741 Comm: fwupd Not tainted 6.18.10-200.fc43.x86_64 #1 PREEMPT(lazy)\nHardware name: LENOVO 20QTS0PQ00/20QTS0PQ00, BIOS N2OET65W (1.52 ) 08/05/2024\nRIP: 0010:r535_gsp_msgq_wait+0x9a/0xb0 [nouveau]\n\nThis is a simple fix to get backported. We should probably engineer a\nproper power domain solution to wake up devices and keep them awake\nwhile fw updates are happening.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-08 15:16:49","updated_at":"2026-05-12 14:10:27"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/8f3c6f08ababad2e3bdd239728cf66a9949446b4","name":"https://git.kernel.org/stable/c/8f3c6f08ababad2e3bdd239728cf66a9949446b4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4df518aa196085909fd7e32518ecd27fba60ed69","name":"https://git.kernel.org/stable/c/4df518aa196085909fd7e32518ecd27fba60ed69","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cd24cab2023aa46b595bc6b9cc39d8973d9d0a8c","name":"https://git.kernel.org/stable/c/cd24cab2023aa46b595bc6b9cc39d8973d9d0a8c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/178df7c91e6c202579284df9f79d1592a514cdcf","name":"https://git.kernel.org/stable/c/178df7c91e6c202579284df9f79d1592a514cdcf","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6bdd2d70c338d52c387d3b3aadc596784ae81b01","name":"https://git.kernel.org/stable/c/6bdd2d70c338d52c387d3b3aadc596784ae81b01","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fad178ae894930520519ead3c8e0150641466360","name":"https://git.kernel.org/stable/c/fad178ae894930520519ead3c8e0150641466360","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/24639553a016578222ac597db924dfb6fa5ec8b5","name":"https://git.kernel.org/stable/c/24639553a016578222ac597db924dfb6fa5ec8b5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ad8fa5bff53f5d1f8394f996850da8ce070eaee3","name":"https://git.kernel.org/stable/c/ad8fa5bff53f5d1f8394f996850da8ce070eaee3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43381","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43381","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8894f4919bc43f821775db2cfff4b917871b2102 178df7c91e6c202579284df9f79d1592a514cdcf git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8894f4919bc43f821775db2cfff4b917871b2102 4df518aa196085909fd7e32518ecd27fba60ed69 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8894f4919bc43f821775db2cfff4b917871b2102 cd24cab2023aa46b595bc6b9cc39d8973d9d0a8c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8894f4919bc43f821775db2cfff4b917871b2102 fad178ae894930520519ead3c8e0150641466360 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8894f4919bc43f821775db2cfff4b917871b2102 6bdd2d70c338d52c387d3b3aadc596784ae81b01 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8894f4919bc43f821775db2cfff4b917871b2102 ad8fa5bff53f5d1f8394f996850da8ce070eaee3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8894f4919bc43f821775db2cfff4b917871b2102 24639553a016578222ac597db924dfb6fa5ec8b5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8894f4919bc43f821775db2cfff4b917871b2102 8f3c6f08ababad2e3bdd239728cf66a9949446b4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.16","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.16 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.253 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.203 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.167 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.130 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.78 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.19 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.9 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"43381","cve":"CVE-2026-43381","epss":"0.000240000","percentile":"0.070210000","score_date":"2026-05-11","updated_at":"2026-05-12 00:01:18"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/nouveau/nouveau_connector.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"178df7c91e6c202579284df9f79d1592a514cdcf","status":"affected","version":"8894f4919bc43f821775db2cfff4b917871b2102","versionType":"git"},{"lessThan":"4df518aa196085909fd7e32518ecd27fba60ed69","status":"affected","version":"8894f4919bc43f821775db2cfff4b917871b2102","versionType":"git"},{"lessThan":"cd24cab2023aa46b595bc6b9cc39d8973d9d0a8c","status":"affected","version":"8894f4919bc43f821775db2cfff4b917871b2102","versionType":"git"},{"lessThan":"fad178ae894930520519ead3c8e0150641466360","status":"affected","version":"8894f4919bc43f821775db2cfff4b917871b2102","versionType":"git"},{"lessThan":"6bdd2d70c338d52c387d3b3aadc596784ae81b01","status":"affected","version":"8894f4919bc43f821775db2cfff4b917871b2102","versionType":"git"},{"lessThan":"ad8fa5bff53f5d1f8394f996850da8ce070eaee3","status":"affected","version":"8894f4919bc43f821775db2cfff4b917871b2102","versionType":"git"},{"lessThan":"24639553a016578222ac597db924dfb6fa5ec8b5","status":"affected","version":"8894f4919bc43f821775db2cfff4b917871b2102","versionType":"git"},{"lessThan":"8f3c6f08ababad2e3bdd239728cf66a9949446b4","status":"affected","version":"8894f4919bc43f821775db2cfff4b917871b2102","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/nouveau/nouveau_connector.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.16"},{"lessThan":"3.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.253","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.203","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.78","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.19","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.253","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.203","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.167","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.130","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.78","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.19","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.9","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"3.16","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnouveau/dpcd: return EBUSY for aux xfer if the device is asleep\n\nIf we have runtime suspended, and userspace wants to use /dev/drm_dp_*\nthen just tell it the device is busy instead of crashing in the GSP\ncode.\n\nWARNING: CPU: 2 PID: 565741 at drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c:164 r535_gsp_msgq_wait+0x9a/0xb0 [nouveau]\nCPU: 2 UID: 0 PID: 565741 Comm: fwupd Not tainted 6.18.10-200.fc43.x86_64 #1 PREEMPT(lazy)\nHardware name: LENOVO 20QTS0PQ00/20QTS0PQ00, BIOS N2OET65W (1.52 ) 08/05/2024\nRIP: 0010:r535_gsp_msgq_wait+0x9a/0xb0 [nouveau]\n\nThis is a simple fix to get backported. We should probably engineer a\nproper power domain solution to wake up devices and keep them awake\nwhile fw updates are happening."}],"providerMetadata":{"dateUpdated":"2026-05-11T22:23:29.324Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/178df7c91e6c202579284df9f79d1592a514cdcf"},{"url":"https://git.kernel.org/stable/c/4df518aa196085909fd7e32518ecd27fba60ed69"},{"url":"https://git.kernel.org/stable/c/cd24cab2023aa46b595bc6b9cc39d8973d9d0a8c"},{"url":"https://git.kernel.org/stable/c/fad178ae894930520519ead3c8e0150641466360"},{"url":"https://git.kernel.org/stable/c/6bdd2d70c338d52c387d3b3aadc596784ae81b01"},{"url":"https://git.kernel.org/stable/c/ad8fa5bff53f5d1f8394f996850da8ce070eaee3"},{"url":"https://git.kernel.org/stable/c/24639553a016578222ac597db924dfb6fa5ec8b5"},{"url":"https://git.kernel.org/stable/c/8f3c6f08ababad2e3bdd239728cf66a9949446b4"}],"title":"nouveau/dpcd: return EBUSY for aux xfer if the device is asleep","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-43381","datePublished":"2026-05-08T14:21:29.340Z","dateReserved":"2026-05-01T14:12:56.006Z","dateUpdated":"2026-05-11T22:23:29.324Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-08 15:16:49","lastModifiedDate":"2026-05-12 14:10:27","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43381","Ordinal":"1","Title":"nouveau/dpcd: return EBUSY for aux xfer if the device is asleep","CVE":"CVE-2026-43381","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43381","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnouveau/dpcd: return EBUSY for aux xfer if the device is asleep\n\nIf we have runtime suspended, and userspace wants to use /dev/drm_dp_*\nthen just tell it the device is busy instead of crashing in the GSP\ncode.\n\nWARNING: CPU: 2 PID: 565741 at drivers/gpu/drm/nouveau/nvkm/subdev/gsp/rm/r535/rpc.c:164 r535_gsp_msgq_wait+0x9a/0xb0 [nouveau]\nCPU: 2 UID: 0 PID: 565741 Comm: fwupd Not tainted 6.18.10-200.fc43.x86_64 #1 PREEMPT(lazy)\nHardware name: LENOVO 20QTS0PQ00/20QTS0PQ00, BIOS N2OET65W (1.52 ) 08/05/2024\nRIP: 0010:r535_gsp_msgq_wait+0x9a/0xb0 [nouveau]\n\nThis is a simple fix to get backported. We should probably engineer a\nproper power domain solution to wake up devices and keep them awake\nwhile fw updates are happening.","Type":"Description","Title":"nouveau/dpcd: return EBUSY for aux xfer if the device is asleep"}]}}}