{"id":"CVE-2022-49334","state":"PUBLISHED","title":"mm/huge_memory: Fix xarray node memory leak","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: Fix xarray node memory leak\n\nIf xas_split_alloc() fails to allocate the necessary nodes to complete the\nxarray entry split, it sets the xa_state to -ENOMEM, which xas_nomem()\nthen interprets as \"Please allocate more memory\", not as \"Please free\nany unnecessary memory\" (which was the intended outcome).  It's confusing\nto use xas_nomem() to free memory in this context, so call xas_destroy()\ninstead.","publishedAt":"2025-02-26T02:10:52.678Z","updatedAt":"2026-05-11T18:57:41.304Z","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":"6b24ca4a1a8d4ee3221d6d44ddbb99f542e4bda3","status":"affected","lessThan":"c0c84962e297927ba57fd6ddc2bb000c9d149655","versionType":"git"},{"version":"6b24ca4a1a8d4ee3221d6d44ddbb99f542e4bda3","status":"affected","lessThan":"95c8181b4947e000f3b9b8e5918d899fce77b93d","versionType":"git"},{"version":"6b24ca4a1a8d4ee3221d6d44ddbb99f542e4bda3","status":"affected","lessThan":"69a37a8ba1b408a1c7616494aa7018e4b3844cbe","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/linux/xarray.h","lib/xarray.c","mm/huge_memory.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.17","versionType":"semver"},{"version":"5.17.15","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18.4","status":"unaffected","lessThanOrEqual":"5.18.*","versionType":"semver"},{"version":"5.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/linux/xarray.h","lib/xarray.c","mm/huge_memory.c"]}],"references":["https://git.kernel.org/stable/c/c0c84962e297927ba57fd6ddc2bb000c9d149655","https://git.kernel.org/stable/c/95c8181b4947e000f3b9b8e5918d899fce77b93d","https://git.kernel.org/stable/c/69a37a8ba1b408a1c7616494aa7018e4b3844cbe"],"weaknesses":["CWE-401"],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49334.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49334","state":"PUBLISHED","datePublished":"2025-02-26T02:10:52.678Z","dateUpdated":"2026-05-11T18:57:41.304Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-02-26T02:08:31.539Z"},"containers":{"cna":{"title":"mm/huge_memory: Fix xarray node memory leak","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: Fix xarray node memory leak\n\nIf xas_split_alloc() fails to allocate the necessary nodes to complete the\nxarray entry split, it sets the xa_state to -ENOMEM, which xas_nomem()\nthen interprets as \"Please allocate more memory\", not as \"Please free\nany unnecessary memory\" (which was the intended outcome).  It's confusing\nto use xas_nomem() to free memory in this context, so call xas_destroy()\ninstead."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6b24ca4a1a8d4ee3221d6d44ddbb99f542e4bda3","status":"affected","lessThan":"c0c84962e297927ba57fd6ddc2bb000c9d149655","versionType":"git"},{"version":"6b24ca4a1a8d4ee3221d6d44ddbb99f542e4bda3","status":"affected","lessThan":"95c8181b4947e000f3b9b8e5918d899fce77b93d","versionType":"git"},{"version":"6b24ca4a1a8d4ee3221d6d44ddbb99f542e4bda3","status":"affected","lessThan":"69a37a8ba1b408a1c7616494aa7018e4b3844cbe","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/linux/xarray.h","lib/xarray.c","mm/huge_memory.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.17","versionType":"semver"},{"version":"5.17.15","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18.4","status":"unaffected","lessThanOrEqual":"5.18.*","versionType":"semver"},{"version":"5.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/linux/xarray.h","lib/xarray.c","mm/huge_memory.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/c0c84962e297927ba57fd6ddc2bb000c9d149655"},{"url":"https://git.kernel.org/stable/c/95c8181b4947e000f3b9b8e5918d899fce77b93d"},{"url":"https://git.kernel.org/stable/c/69a37a8ba1b408a1c7616494aa7018e4b3844cbe"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T18:57:41.304Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"5.17.15"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"5.18.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.17","versionEndExcluding":"5.19"}]}]}],"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":{"id":"CVE-2022-49334","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:43:11.577136Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-401","lang":"en","type":"CWE","description":"CWE-401 Missing Release of Memory after Effective Lifetime"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T19:46:55.349Z"}}]}}}