{"api_version":"1","generated_at":"2026-05-12T22:03:40+00:00","cve":"CVE-2026-43440","urls":{"html":"https://cve.report/CVE-2026-43440","api":"https://cve.report/api/cve/CVE-2026-43440.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43440","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43440"},"summary":{"title":"net/mana: Null service_wq on setup error to prevent double destroy","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mana: Null service_wq on setup error to prevent double destroy\n\nIn mana_gd_setup() error path, set gc->service_wq to NULL after\ndestroy_workqueue() to match the cleanup in mana_gd_cleanup().\nThis prevents a use-after-free if the workqueue pointer is checked\nafter a failed setup.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-08 15:16:56","updated_at":"2026-05-12 14:10:27"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/6c92392602b451e3869f15ab685f8f650e942b13","name":"https://git.kernel.org/stable/c/6c92392602b451e3869f15ab685f8f650e942b13","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/59489ce60d7412ed82fb1d8002faa3102dcd4916","name":"https://git.kernel.org/stable/c/59489ce60d7412ed82fb1d8002faa3102dcd4916","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/87c2302813abc55c46485711a678e3c312b00666","name":"https://git.kernel.org/stable/c/87c2302813abc55c46485711a678e3c312b00666","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43440","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43440","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected fa3c2f8d9152344a478abb847081c1b5f84a94f5 59489ce60d7412ed82fb1d8002faa3102dcd4916 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a9a7c3203fdc4d4a8d8a7a3b1ed05d2bb4c6e77e 6c92392602b451e3869f15ab685f8f650e942b13 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f975a0955276579e2176a134366ed586071c7c6a 87c2302813abc55c46485711a678e3c312b00666 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.18.16 6.18.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19.6 6.19.9 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"43440","cve":"CVE-2026-43440","epss":"0.000170000","percentile":"0.041290000","score_date":"2026-05-11","updated_at":"2026-05-12 00:01:17"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ethernet/microsoft/mana/gdma_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"59489ce60d7412ed82fb1d8002faa3102dcd4916","status":"affected","version":"fa3c2f8d9152344a478abb847081c1b5f84a94f5","versionType":"git"},{"lessThan":"6c92392602b451e3869f15ab685f8f650e942b13","status":"affected","version":"a9a7c3203fdc4d4a8d8a7a3b1ed05d2bb4c6e77e","versionType":"git"},{"lessThan":"87c2302813abc55c46485711a678e3c312b00666","status":"affected","version":"f975a0955276579e2176a134366ed586071c7c6a","versionType":"git"}]},{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ethernet/microsoft/mana/gdma_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"6.18.19","status":"affected","version":"6.18.16","versionType":"semver"},{"lessThan":"6.19.9","status":"affected","version":"6.19.6","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.19","versionStartIncluding":"6.18.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.9","versionStartIncluding":"6.19.6","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mana: Null service_wq on setup error to prevent double destroy\n\nIn mana_gd_setup() error path, set gc->service_wq to NULL after\ndestroy_workqueue() to match the cleanup in mana_gd_cleanup().\nThis prevents a use-after-free if the workqueue pointer is checked\nafter a failed setup."}],"providerMetadata":{"dateUpdated":"2026-05-11T22:24:37.924Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/59489ce60d7412ed82fb1d8002faa3102dcd4916"},{"url":"https://git.kernel.org/stable/c/6c92392602b451e3869f15ab685f8f650e942b13"},{"url":"https://git.kernel.org/stable/c/87c2302813abc55c46485711a678e3c312b00666"}],"title":"net/mana: Null service_wq on setup error to prevent double destroy","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-43440","datePublished":"2026-05-08T14:22:09.334Z","dateReserved":"2026-05-01T14:12:56.009Z","dateUpdated":"2026-05-11T22:24:37.924Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-08 15:16:56","lastModifiedDate":"2026-05-12 14:10:27","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43440","Ordinal":"1","Title":"net/mana: Null service_wq on setup error to prevent double destr","CVE":"CVE-2026-43440","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43440","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mana: Null service_wq on setup error to prevent double destroy\n\nIn mana_gd_setup() error path, set gc->service_wq to NULL after\ndestroy_workqueue() to match the cleanup in mana_gd_cleanup().\nThis prevents a use-after-free if the workqueue pointer is checked\nafter a failed setup.","Type":"Description","Title":"net/mana: Null service_wq on setup error to prevent double destr"}]}}}