{"api_version":"1","generated_at":"2026-09-12T15:30:07+00:00","cve":"CVE-2026-89602","urls":{"html":"https://cve.report/CVE-2026-89602","api":"https://cve.report/api/cve/CVE-2026-89602.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-89602","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-89602"},"summary":{"title":"erofs: skip sufficiently large global buffers when resizing","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: skip sufficiently large global buffers when resizing\n\nz_erofs_gbuf_nrpages is advanced only after every global buffer has been\ngrown. If a resize fails after some buffers were enlarged, a retry\nrevisits those enlarged buffers.\n\nRetrying the same size then returns -ENOMEM because alloc_pages_bulk()\nhas no pages to add and the unchanged return value is treated as a\nfailure. Retrying an intermediate size allocates a temporary pointer\narray smaller than gbuf->nrpages and copies more existing pointers than\nthe array can hold.\n\nSkip buffers that already satisfy the request. Once all remaining\nbuffers have caught up, advancing z_erofs_gbuf_nrpages again describes\nthe guaranteed minimum size across the pool.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-11 20:19:45","updated_at":"2026-09-11 20:19:45"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/7f4a89d4f0d6acaf4b756c31de48f2109a257b70","name":"https://git.kernel.org/stable/c/7f4a89d4f0d6acaf4b756c31de48f2109a257b70","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7267557ce98ccd07faaf3bc86382448950cc4ff6","name":"https://git.kernel.org/stable/c/7267557ce98ccd07faaf3bc86382448950cc4ff6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a7d097cf01301c5da37927c8f26123d006f0fd8a","name":"https://git.kernel.org/stable/c/a7d097cf01301c5da37927c8f26123d006f0fd8a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89602","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89602","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d6db47e571dcaecaeaafa8840d00ae849ae3907b 7267557ce98ccd07faaf3bc86382448950cc4ff6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d6db47e571dcaecaeaafa8840d00ae849ae3907b 7f4a89d4f0d6acaf4b756c31de48f2109a257b70 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d6db47e571dcaecaeaafa8840d00ae849ae3907b a7d097cf01301c5da37927c8f26123d006f0fd8a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.10","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.10 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.51 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.4 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * 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/erofs/zutil.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"7267557ce98ccd07faaf3bc86382448950cc4ff6","status":"affected","version":"d6db47e571dcaecaeaafa8840d00ae849ae3907b","versionType":"git"},{"lessThan":"7f4a89d4f0d6acaf4b756c31de48f2109a257b70","status":"affected","version":"d6db47e571dcaecaeaafa8840d00ae849ae3907b","versionType":"git"},{"lessThan":"a7d097cf01301c5da37927c8f26123d006f0fd8a","status":"affected","version":"d6db47e571dcaecaeaafa8840d00ae849ae3907b","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/erofs/zutil.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.10"},{"lessThan":"6.10","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.51","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.51","versionStartIncluding":"6.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.4","versionStartIncluding":"6.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"6.10","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: skip sufficiently large global buffers when resizing\n\nz_erofs_gbuf_nrpages is advanced only after every global buffer has been\ngrown. If a resize fails after some buffers were enlarged, a retry\nrevisits those enlarged buffers.\n\nRetrying the same size then returns -ENOMEM because alloc_pages_bulk()\nhas no pages to add and the unchanged return value is treated as a\nfailure. Retrying an intermediate size allocates a temporary pointer\narray smaller than gbuf->nrpages and copies more existing pointers than\nthe array can hold.\n\nSkip buffers that already satisfy the request. Once all remaining\nbuffers have caught up, advancing z_erofs_gbuf_nrpages again describes\nthe guaranteed minimum size across the pool."}],"providerMetadata":{"dateUpdated":"2026-09-11T19:45:05.783Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/7267557ce98ccd07faaf3bc86382448950cc4ff6"},{"url":"https://git.kernel.org/stable/c/7f4a89d4f0d6acaf4b756c31de48f2109a257b70"},{"url":"https://git.kernel.org/stable/c/a7d097cf01301c5da37927c8f26123d006f0fd8a"}],"title":"erofs: skip sufficiently large global buffers when resizing","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-89602","datePublished":"2026-09-11T19:45:05.783Z","dateReserved":"2026-09-11T19:38:34.732Z","dateUpdated":"2026-09-11T19:45:05.783Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-11 20:19:45","lastModifiedDate":"2026-09-11 20:19:45","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"89602","Ordinal":"1","Title":"erofs: skip sufficiently large global buffers when resizing","CVE":"CVE-2026-89602","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"89602","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: skip sufficiently large global buffers when resizing\n\nz_erofs_gbuf_nrpages is advanced only after every global buffer has been\ngrown. If a resize fails after some buffers were enlarged, a retry\nrevisits those enlarged buffers.\n\nRetrying the same size then returns -ENOMEM because alloc_pages_bulk()\nhas no pages to add and the unchanged return value is treated as a\nfailure. Retrying an intermediate size allocates a temporary pointer\narray smaller than gbuf->nrpages and copies more existing pointers than\nthe array can hold.\n\nSkip buffers that already satisfy the request. Once all remaining\nbuffers have caught up, advancing z_erofs_gbuf_nrpages again describes\nthe guaranteed minimum size across the pool.","Type":"Description","Title":"erofs: skip sufficiently large global buffers when resizing"}]}}}