{"id":"CVE-2022-49866","state":"PUBLISHED","title":"net: wwan: mhi: fix memory leak in mhi_mbim_dellink","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: wwan: mhi: fix memory leak in mhi_mbim_dellink\n\nMHI driver registers network device without setting the\nneeds_free_netdev flag, and does NOT call free_netdev() when\nunregisters network device, which causes a memory leak.\n\nThis patch sets needs_free_netdev to true when registers\nnetwork device, which makes netdev subsystem call free_netdev()\nautomatically after unregister_netdevice().","publishedAt":"2025-05-01T14:10:18.294Z","updatedAt":"2026-05-11T19:08:15.602Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"aa730a9905b7b079ef2fffdab7f15dbb842f5c7c","status":"affected","lessThan":"2845bc9070cef0c651987487d84d4813d64675dd","versionType":"git"},{"version":"aa730a9905b7b079ef2fffdab7f15dbb842f5c7c","status":"affected","lessThan":"3cd3ffe952f78ec5dadf300cb58d4b38a0c0106d","versionType":"git"},{"version":"aa730a9905b7b079ef2fffdab7f15dbb842f5c7c","status":"affected","lessThan":"668205b9c9f94d5ed6ab00cce9a46a654c2b5d16","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wwan/mhi_wwan_mbim.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"5.15.79","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.9","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wwan/mhi_wwan_mbim.c"]}],"references":["https://git.kernel.org/stable/c/2845bc9070cef0c651987487d84d4813d64675dd","https://git.kernel.org/stable/c/3cd3ffe952f78ec5dadf300cb58d4b38a0c0106d","https://git.kernel.org/stable/c/668205b9c9f94d5ed6ab00cce9a46a654c2b5d16"],"weaknesses":["CWE-401"],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49866.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49866","state":"PUBLISHED","datePublished":"2025-05-01T14:10:18.294Z","dateUpdated":"2026-05-11T19:08:15.602Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-05-01T14:05:17.237Z"},"containers":{"cna":{"title":"net: wwan: mhi: fix memory leak in mhi_mbim_dellink","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: wwan: mhi: fix memory leak in mhi_mbim_dellink\n\nMHI driver registers network device without setting the\nneeds_free_netdev flag, and does NOT call free_netdev() when\nunregisters network device, which causes a memory leak.\n\nThis patch sets needs_free_netdev to true when registers\nnetwork device, which makes netdev subsystem call free_netdev()\nautomatically after unregister_netdevice()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"aa730a9905b7b079ef2fffdab7f15dbb842f5c7c","status":"affected","lessThan":"2845bc9070cef0c651987487d84d4813d64675dd","versionType":"git"},{"version":"aa730a9905b7b079ef2fffdab7f15dbb842f5c7c","status":"affected","lessThan":"3cd3ffe952f78ec5dadf300cb58d4b38a0c0106d","versionType":"git"},{"version":"aa730a9905b7b079ef2fffdab7f15dbb842f5c7c","status":"affected","lessThan":"668205b9c9f94d5ed6ab00cce9a46a654c2b5d16","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wwan/mhi_wwan_mbim.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.15","versionType":"semver"},{"version":"5.15.79","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.9","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wwan/mhi_wwan_mbim.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/2845bc9070cef0c651987487d84d4813d64675dd"},{"url":"https://git.kernel.org/stable/c/3cd3ffe952f78ec5dadf300cb58d4b38a0c0106d"},{"url":"https://git.kernel.org/stable/c/668205b9c9f94d5ed6ab00cce9a46a654c2b5d16"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:08:15.602Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"5.15.79"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.0.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15","versionEndExcluding":"6.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-10-01T16:05:02.088026Z","id":"CVE-2022-49866","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-401","type":"CWE","lang":"en","description":"CWE-401 Missing Release of Memory after Effective Lifetime"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T16:05:05.398Z"}}]}}}