{"id":"CVE-2022-49881","state":"PUBLISHED","title":"wifi: cfg80211: fix memory leak in query_regdb_file()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: fix memory leak in query_regdb_file()\n\nIn the function query_regdb_file() the alpha2 parameter is duplicated\nusing kmemdup() and subsequently freed in regdb_fw_cb(). However,\nrequest_firmware_nowait() can fail without calling regdb_fw_cb() and\nthus leak memory.","publishedAt":"2025-05-01T14:10:28.610Z","updatedAt":"2026-05-11T19:08:33.030Z","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":"007f6c5e6eb45c81ee89368a5f226572ae638831","status":"affected","lessThan":"219446396786330937bcd382a7bc4ccd767383bc","versionType":"git"},{"version":"007f6c5e6eb45c81ee89368a5f226572ae638831","status":"affected","lessThan":"0ede1a988299e95d54bd89551fd635980572e920","versionType":"git"},{"version":"007f6c5e6eb45c81ee89368a5f226572ae638831","status":"affected","lessThan":"e1e12180321f416d83444f2cdc9259e0f5093d35","versionType":"git"},{"version":"007f6c5e6eb45c81ee89368a5f226572ae638831","status":"affected","lessThan":"38c9fa2cc6bf4b6e1a74057aef8b5cffd23d3264","versionType":"git"},{"version":"007f6c5e6eb45c81ee89368a5f226572ae638831","status":"affected","lessThan":"e9b5a4566d5bc71cc901be50d1fa24da00613120","versionType":"git"},{"version":"007f6c5e6eb45c81ee89368a5f226572ae638831","status":"affected","lessThan":"57b962e627ec0ae53d4d16d7bd1033e27e67677a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/reg.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.15","versionType":"semver"},{"version":"4.19.267","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.225","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.155","status":"unaffected","lessThanOrEqual":"5.10.*","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":["net/wireless/reg.c"]}],"references":["https://git.kernel.org/stable/c/219446396786330937bcd382a7bc4ccd767383bc","https://git.kernel.org/stable/c/0ede1a988299e95d54bd89551fd635980572e920","https://git.kernel.org/stable/c/e1e12180321f416d83444f2cdc9259e0f5093d35","https://git.kernel.org/stable/c/38c9fa2cc6bf4b6e1a74057aef8b5cffd23d3264","https://git.kernel.org/stable/c/e9b5a4566d5bc71cc901be50d1fa24da00613120","https://git.kernel.org/stable/c/57b962e627ec0ae53d4d16d7bd1033e27e67677a"],"weaknesses":["CWE-401"],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49881.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49881","state":"PUBLISHED","datePublished":"2025-05-01T14:10:28.610Z","dateUpdated":"2026-05-11T19:08:33.030Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-05-01T14:05:17.240Z"},"containers":{"cna":{"title":"wifi: cfg80211: fix memory leak in query_regdb_file()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: fix memory leak in query_regdb_file()\n\nIn the function query_regdb_file() the alpha2 parameter is duplicated\nusing kmemdup() and subsequently freed in regdb_fw_cb(). However,\nrequest_firmware_nowait() can fail without calling regdb_fw_cb() and\nthus leak memory."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"007f6c5e6eb45c81ee89368a5f226572ae638831","status":"affected","lessThan":"219446396786330937bcd382a7bc4ccd767383bc","versionType":"git"},{"version":"007f6c5e6eb45c81ee89368a5f226572ae638831","status":"affected","lessThan":"0ede1a988299e95d54bd89551fd635980572e920","versionType":"git"},{"version":"007f6c5e6eb45c81ee89368a5f226572ae638831","status":"affected","lessThan":"e1e12180321f416d83444f2cdc9259e0f5093d35","versionType":"git"},{"version":"007f6c5e6eb45c81ee89368a5f226572ae638831","status":"affected","lessThan":"38c9fa2cc6bf4b6e1a74057aef8b5cffd23d3264","versionType":"git"},{"version":"007f6c5e6eb45c81ee89368a5f226572ae638831","status":"affected","lessThan":"e9b5a4566d5bc71cc901be50d1fa24da00613120","versionType":"git"},{"version":"007f6c5e6eb45c81ee89368a5f226572ae638831","status":"affected","lessThan":"57b962e627ec0ae53d4d16d7bd1033e27e67677a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/wireless/reg.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.15","versionType":"semver"},{"version":"4.19.267","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.225","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.155","status":"unaffected","lessThanOrEqual":"5.10.*","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":["net/wireless/reg.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/219446396786330937bcd382a7bc4ccd767383bc"},{"url":"https://git.kernel.org/stable/c/0ede1a988299e95d54bd89551fd635980572e920"},{"url":"https://git.kernel.org/stable/c/e1e12180321f416d83444f2cdc9259e0f5093d35"},{"url":"https://git.kernel.org/stable/c/38c9fa2cc6bf4b6e1a74057aef8b5cffd23d3264"},{"url":"https://git.kernel.org/stable/c/e9b5a4566d5bc71cc901be50d1fa24da00613120"},{"url":"https://git.kernel.org/stable/c/57b962e627ec0ae53d4d16d7bd1033e27e67677a"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:08:33.030Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"4.19.267"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"5.4.225"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"5.10.155"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"5.15.79"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"6.0.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","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":"2025-10-01T16:10:51.762206Z","id":"CVE-2022-49881","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":"2025-10-01T16:10:57.930Z"}}]}}}