{"id":"CVE-2026-43440","state":"PUBLISHED","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.","publishedAt":"2026-05-08T14:22:09.334Z","updatedAt":"2026-05-11T22:24:37.924Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"fa3c2f8d9152344a478abb847081c1b5f84a94f5","status":"affected","lessThan":"59489ce60d7412ed82fb1d8002faa3102dcd4916","versionType":"git"},{"version":"a9a7c3203fdc4d4a8d8a7a3b1ed05d2bb4c6e77e","status":"affected","lessThan":"6c92392602b451e3869f15ab685f8f650e942b13","versionType":"git"},{"version":"f975a0955276579e2176a134366ed586071c7c6a","status":"affected","lessThan":"87c2302813abc55c46485711a678e3c312b00666","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/microsoft/mana/gdma_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6.18.16","status":"affected","lessThan":"6.18.19","versionType":"semver"},{"version":"6.19.6","status":"affected","lessThan":"6.19.9","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/microsoft/mana/gdma_main.c"]}],"references":["https://git.kernel.org/stable/c/59489ce60d7412ed82fb1d8002faa3102dcd4916","https://git.kernel.org/stable/c/6c92392602b451e3869f15ab685f8f650e942b13","https://git.kernel.org/stable/c/87c2302813abc55c46485711a678e3c312b00666"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43440.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43440","state":"PUBLISHED","datePublished":"2026-05-08T14:22:09.334Z","dateUpdated":"2026-05-11T22:24:37.924Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:56.009Z"},"containers":{"cna":{"title":"net/mana: Null service_wq on setup error to prevent double destroy","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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"fa3c2f8d9152344a478abb847081c1b5f84a94f5","status":"affected","lessThan":"59489ce60d7412ed82fb1d8002faa3102dcd4916","versionType":"git"},{"version":"a9a7c3203fdc4d4a8d8a7a3b1ed05d2bb4c6e77e","status":"affected","lessThan":"6c92392602b451e3869f15ab685f8f650e942b13","versionType":"git"},{"version":"f975a0955276579e2176a134366ed586071c7c6a","status":"affected","lessThan":"87c2302813abc55c46485711a678e3c312b00666","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/microsoft/mana/gdma_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6.18.16","status":"affected","lessThan":"6.18.19","versionType":"semver"},{"version":"6.19.6","status":"affected","lessThan":"6.19.9","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/microsoft/mana/gdma_main.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:24:37.924Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18.16","versionEndExcluding":"6.18.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19.6","versionEndExcluding":"6.19.9"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}