{"api_version":"1","generated_at":"2026-05-11T11:02:40+00:00","cve":"CVE-2026-43345","urls":{"html":"https://cve.report/CVE-2026-43345","api":"https://cve.report/api/cve/CVE-2026-43345.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43345","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43345"},"summary":{"title":"net: ipa: fix event ring index not programmed for IPA v5.0+","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ipa: fix event ring index not programmed for IPA v5.0+\n\nFor IPA v5.0+, the event ring index field moved from CH_C_CNTXT_0 to\nCH_C_CNTXT_1. The v5.0 register definition intended to define this\nfield in the CH_C_CNTXT_1 fmask array but used the old identifier of\nERINDEX instead of CH_ERINDEX.\n\nWithout a valid event ring, GSI channels could never signal transfer\ncompletions. This caused gsi_channel_trans_quiesce() to block\nforever in wait_for_completion().\n\nAt least for IPA v5.2 this resolves an issue seen where runtime\nsuspend, system suspend, and remoteproc stop all hanged forever. It\nalso meant the IPA data path was completely non functional.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-08 14:16:44","updated_at":"2026-05-11 08:16:10"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/2d2dc166d55148cfcf8ae67b415f8d6d110e6fca","name":"https://git.kernel.org/stable/c/2d2dc166d55148cfcf8ae67b415f8d6d110e6fca","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/34c988bb04cbdf093d2134e179433da49ffcd044","name":"https://git.kernel.org/stable/c/34c988bb04cbdf093d2134e179433da49ffcd044","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/56007972c0b1e783ca714d6f1f4d6e66e531d21f","name":"https://git.kernel.org/stable/c/56007972c0b1e783ca714d6f1f4d6e66e531d21f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2bf18b643c4656413f7cfd5615af60a6b4e261da","name":"https://git.kernel.org/stable/c/2bf18b643c4656413f7cfd5615af60a6b4e261da","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ae8343a19ccb051d519dbb3a9082ddea9f0551d3","name":"https://git.kernel.org/stable/c/ae8343a19ccb051d519dbb3a9082ddea9f0551d3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43345","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43345","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected faf0678ec8a0aa9039d8b188d012206abd67dd5c ae8343a19ccb051d519dbb3a9082ddea9f0551d3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected faf0678ec8a0aa9039d8b188d012206abd67dd5c 2bf18b643c4656413f7cfd5615af60a6b4e261da git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected faf0678ec8a0aa9039d8b188d012206abd67dd5c 2d2dc166d55148cfcf8ae67b415f8d6d110e6fca git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected faf0678ec8a0aa9039d8b188d012206abd67dd5c 34c988bb04cbdf093d2134e179433da49ffcd044 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected faf0678ec8a0aa9039d8b188d012206abd67dd5c 56007972c0b1e783ca714d6f1f4d6e66e531d21f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.4","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.4 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.136 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.83 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.24 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.14 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":"43345","cve":"CVE-2026-43345","epss":"0.000180000","percentile":"0.049330000","score_date":"2026-05-10","updated_at":"2026-05-11 00:14:41"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ipa/reg/gsi_reg-v5.0.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"ae8343a19ccb051d519dbb3a9082ddea9f0551d3","status":"affected","version":"faf0678ec8a0aa9039d8b188d012206abd67dd5c","versionType":"git"},{"lessThan":"2bf18b643c4656413f7cfd5615af60a6b4e261da","status":"affected","version":"faf0678ec8a0aa9039d8b188d012206abd67dd5c","versionType":"git"},{"lessThan":"2d2dc166d55148cfcf8ae67b415f8d6d110e6fca","status":"affected","version":"faf0678ec8a0aa9039d8b188d012206abd67dd5c","versionType":"git"},{"lessThan":"34c988bb04cbdf093d2134e179433da49ffcd044","status":"affected","version":"faf0678ec8a0aa9039d8b188d012206abd67dd5c","versionType":"git"},{"lessThan":"56007972c0b1e783ca714d6f1f4d6e66e531d21f","status":"affected","version":"faf0678ec8a0aa9039d8b188d012206abd67dd5c","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ipa/reg/gsi_reg-v5.0.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.4"},{"lessThan":"6.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.136","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.83","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.24","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.14","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":"6.6.136","versionStartIncluding":"6.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.83","versionStartIncluding":"6.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.24","versionStartIncluding":"6.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.14","versionStartIncluding":"6.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"6.4","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ipa: fix event ring index not programmed for IPA v5.0+\n\nFor IPA v5.0+, the event ring index field moved from CH_C_CNTXT_0 to\nCH_C_CNTXT_1. The v5.0 register definition intended to define this\nfield in the CH_C_CNTXT_1 fmask array but used the old identifier of\nERINDEX instead of CH_ERINDEX.\n\nWithout a valid event ring, GSI channels could never signal transfer\ncompletions. This caused gsi_channel_trans_quiesce() to block\nforever in wait_for_completion().\n\nAt least for IPA v5.2 this resolves an issue seen where runtime\nsuspend, system suspend, and remoteproc stop all hanged forever. It\nalso meant the IPA data path was completely non functional."}],"metrics":[{"cvssV3_1":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-05-11T06:33:28.445Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/ae8343a19ccb051d519dbb3a9082ddea9f0551d3"},{"url":"https://git.kernel.org/stable/c/2bf18b643c4656413f7cfd5615af60a6b4e261da"},{"url":"https://git.kernel.org/stable/c/2d2dc166d55148cfcf8ae67b415f8d6d110e6fca"},{"url":"https://git.kernel.org/stable/c/34c988bb04cbdf093d2134e179433da49ffcd044"},{"url":"https://git.kernel.org/stable/c/56007972c0b1e783ca714d6f1f4d6e66e531d21f"}],"title":"net: ipa: fix event ring index not programmed for IPA v5.0+","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-43345","datePublished":"2026-05-08T13:39:31.222Z","dateReserved":"2026-05-01T14:12:56.003Z","dateUpdated":"2026-05-11T06:33:28.445Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-08 14:16:44","lastModifiedDate":"2026-05-11 08:16:10","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43345","Ordinal":"1","Title":"net: ipa: fix event ring index not programmed for IPA v5.0+","CVE":"CVE-2026-43345","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43345","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ipa: fix event ring index not programmed for IPA v5.0+\n\nFor IPA v5.0+, the event ring index field moved from CH_C_CNTXT_0 to\nCH_C_CNTXT_1. The v5.0 register definition intended to define this\nfield in the CH_C_CNTXT_1 fmask array but used the old identifier of\nERINDEX instead of CH_ERINDEX.\n\nWithout a valid event ring, GSI channels could never signal transfer\ncompletions. This caused gsi_channel_trans_quiesce() to block\nforever in wait_for_completion().\n\nAt least for IPA v5.2 this resolves an issue seen where runtime\nsuspend, system suspend, and remoteproc stop all hanged forever. It\nalso meant the IPA data path was completely non functional.","Type":"Description","Title":"net: ipa: fix event ring index not programmed for IPA v5.0+"}]}}}