CVE-2026-90266

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90266", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.796Z", "datePublished": "2026-09-17T16:08:01.995Z", "dateUpdated": "2026-10-19T09:00:43.942Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:00:43.942Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: zoned: don't force read-only on transient -EAGAIN from reloc merge\n\nOn a zoned FS, btrfs_delayed_refs_rsv_refill() returns -EAGAIN whenever\nthe over-committed metadata plus the zone_unusable bytes exceeds the\nusable size in a metadata block-group to avoid heavy over-commit of\nmetadata and early ENOSPC in one transaction.\n\nIf this happens while doing reclaim, the transaction is getting aborted.\n\nTreat -EAGAIN as a soft, retryable condition in case of block-group\nreclaim."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/btrfs/block-group.c", "fs/btrfs/relocation.c"], "versions": [{"version": "7bcb04de982ff0718870112ad9f38c35cbca528b", "lessThan": "8249dfe46337d599e2087b772a2e32ef9f77282b", "status": "affected", "versionType": "git"}, {"version": "7bcb04de982ff0718870112ad9f38c35cbca528b", "lessThan": "e549093c11a2fff8430df3dfbdb45eb9811a69a5", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/btrfs/block-group.c", "fs/btrfs/relocation.c"], "versions": [{"version": "7.1", "status": "affected"}, {"version": "0", "lessThan": "7.1", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.1", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8249dfe46337d599e2087b772a2e32ef9f77282b"}, {"url": "https://git.kernel.org/stable/c/e549093c11a2fff8430df3dfbdb45eb9811a69a5"}], "title": "btrfs: zoned: don't force read-only on transient -EAGAIN from reloc merge", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["fs/btrfs/block-group.c", "fs/btrfs/relocation.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "8249dfe46337d599e2087b772a2e32ef9f77282b", "status": "affected", "version": "7bcb04de982ff0718870112ad9f38c35cbca528b", "versionType": "git"}, {"lessThan": "e549093c11a2fff8430df3dfbdb45eb9811a69a5", "status": "affected", "version": "7bcb04de982ff0718870112ad9f38c35cbca528b", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["fs/btrfs/block-group.c", "fs/btrfs/relocation.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "7.1"}, {"lessThan": "7.1", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: zoned: don't force read-only on transient -EAGAIN from reloc merge\n\nOn a zoned FS, btrfs_delayed_refs_rsv_refill() returns -EAGAIN whenever\nthe over-committed metadata plus the zone_unusable bytes exceeds the\nusable size in a metadata block-group to avoid heavy over-commit of\nmetadata and early ENOSPC in one transaction.\n\nIf this happens while doing reclaim, the transaction is getting aborted.\n\nTreat -EAGAIN as a soft, retryable condition in case of block-group\nreclaim."}], "id": "CVE-2026-90266", "lastModified": "2026-10-19T09:19:20.240", "metrics": {}, "published": "2026-09-17T17:17:23.147", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8249dfe46337d599e2087b772a2e32ef9f77282b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e549093c11a2fff8430df3dfbdb45eb9811a69a5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7bcb04de982ff0718870112ad9f38c35cbca528b,8249dfe46337d599e2087b772a2e32ef9f77282b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7bcb04de982ff0718870112ad9f38c35cbca528b,e549093c11a2fff8430df3dfbdb45eb9811a69a5)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "7.1"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,7.1)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-19T03:15:16.734815+00:00", "updated": "2026-09-19T15:00:12.193944+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-152"]}