{"api_version":"1","generated_at":"2026-10-26T08:55:37+00:00","cve":"CVE-2026-99080","urls":{"html":"https://cve.report/CVE-2026-99080","api":"https://cve.report/api/cve/CVE-2026-99080.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-99080","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-99080"},"summary":{"title":"fs: Free any excess xarray nodes in clear_inode()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs: Free any excess xarray nodes in clear_inode()\n\nFor many years we've had a hard to hit leak of xarray nodes.  Hugh\ndocumented it well in commit 786b31121a2c.  Recently people and\nsyzbot have found ways to force it to happen with madvise.  Rather\nthan fix the leaks where they happen, just call xa_destroy() which\nhas the side-effect of cycling the i_pages lock.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-23 13:17:32","updated_at":"2026-10-26 07:17:18"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/21f51434c47d8628b62275ae6c6ad6b573abcd02","name":"https://git.kernel.org/stable/c/21f51434c47d8628b62275ae6c6ad6b573abcd02","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f1c966eb6ed5e190c90a56c5bdaa69967de39f21","name":"https://git.kernel.org/stable/c/f1c966eb6ed5e190c90a56c5bdaa69967de39f21","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/50cff3f112d64db6e5f57355f79bc837db8fe132","name":"https://git.kernel.org/stable/c/50cff3f112d64db6e5f57355f79bc837db8fe132","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ee3f011250104129893d8e9599147e457d4d7280","name":"https://git.kernel.org/stable/c/ee3f011250104129893d8e9599147e457d4d7280","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/43f830e2bb84b22ca824b20bb861d823ecb520bd","name":"https://git.kernel.org/stable/c/43f830e2bb84b22ca824b20bb861d823ecb520bd","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-99080","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-99080","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 77da9389b9d5f07d54fda092d1ab56002ec0019a f1c966eb6ed5e190c90a56c5bdaa69967de39f21 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 77da9389b9d5f07d54fda092d1ab56002ec0019a 21f51434c47d8628b62275ae6c6ad6b573abcd02 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 77da9389b9d5f07d54fda092d1ab56002ec0019a 50cff3f112d64db6e5f57355f79bc837db8fe132 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 77da9389b9d5f07d54fda092d1ab56002ec0019a 43f830e2bb84b22ca824b20bb861d823ecb520bd git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 77da9389b9d5f07d54fda092d1ab56002ec0019a ee3f011250104129893d8e9599147e457d4d7280 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.20","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.20 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.160 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.113 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.57 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.11 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/inode.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"f1c966eb6ed5e190c90a56c5bdaa69967de39f21","status":"affected","version":"77da9389b9d5f07d54fda092d1ab56002ec0019a","versionType":"git"},{"lessThan":"21f51434c47d8628b62275ae6c6ad6b573abcd02","status":"affected","version":"77da9389b9d5f07d54fda092d1ab56002ec0019a","versionType":"git"},{"lessThan":"50cff3f112d64db6e5f57355f79bc837db8fe132","status":"affected","version":"77da9389b9d5f07d54fda092d1ab56002ec0019a","versionType":"git"},{"lessThan":"43f830e2bb84b22ca824b20bb861d823ecb520bd","status":"affected","version":"77da9389b9d5f07d54fda092d1ab56002ec0019a","versionType":"git"},{"lessThan":"ee3f011250104129893d8e9599147e457d4d7280","status":"affected","version":"77da9389b9d5f07d54fda092d1ab56002ec0019a","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/inode.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.20"},{"lessThan":"4.20","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.160","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.113","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.57","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.160","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.113","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.57","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.11","versionStartIncluding":"4.20","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"4.20","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs: Free any excess xarray nodes in clear_inode()\n\nFor many years we've had a hard to hit leak of xarray nodes.  Hugh\ndocumented it well in commit 786b31121a2c.  Recently people and\nsyzbot have found ways to force it to happen with madvise.  Rather\nthan fix the leaks where they happen, just call xa_destroy() which\nhas the side-effect of cycling the i_pages lock."}],"providerMetadata":{"dateUpdated":"2026-10-26T06:56:57.576Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/f1c966eb6ed5e190c90a56c5bdaa69967de39f21"},{"url":"https://git.kernel.org/stable/c/21f51434c47d8628b62275ae6c6ad6b573abcd02"},{"url":"https://git.kernel.org/stable/c/50cff3f112d64db6e5f57355f79bc837db8fe132"},{"url":"https://git.kernel.org/stable/c/43f830e2bb84b22ca824b20bb861d823ecb520bd"},{"url":"https://git.kernel.org/stable/c/ee3f011250104129893d8e9599147e457d4d7280"}],"title":"fs: Free any excess xarray nodes in clear_inode()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-99080","datePublished":"2026-10-23T12:23:27.393Z","dateReserved":"2026-09-25T10:25:14.390Z","dateUpdated":"2026-10-26T06:56:57.576Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-23 13:17:32","lastModifiedDate":"2026-10-26 07:17:18","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"99080","Ordinal":"1","Title":"fs: Free any excess xarray nodes in clear_inode()","CVE":"CVE-2026-99080","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"99080","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs: Free any excess xarray nodes in clear_inode()\n\nFor many years we've had a hard to hit leak of xarray nodes.  Hugh\ndocumented it well in commit 786b31121a2c.  Recently people and\nsyzbot have found ways to force it to happen with madvise.  Rather\nthan fix the leaks where they happen, just call xa_destroy() which\nhas the side-effect of cycling the i_pages lock.","Type":"Description","Title":"fs: Free any excess xarray nodes in clear_inode()"}]}}}