{"id":"CVE-2026-90266","revision":"ab58f51fa0e84087a3b5baa19df5093a","records":[{"revision":"ab58f51fa0e84087a3b5baa19df5093a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90266","aliases":[],"title":"btrfs: zoned: don't force read-only on transient -EAGAIN from reloc merge","description":"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.","state":0,"publishedAt":"2026-09-17T16:08:01.995+00:00","modifiedAt":"2026-10-19T09:00:43.942+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/btrfs/block-group.c\",\n                        \"fs/btrfs/relocation.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7bcb04de982ff0718870112ad9f38c35cbca528b\",\n                            \"lessThan\": \"8249dfe46337d599e2087b772a2e32ef9f77282b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"7bcb04de982ff0718870112ad9f38c35cbca528b\",\n                            \"lessThan\": \"e549093c11a2fff8430df3dfbdb45eb9811a69a5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/btrfs/block-group.c\",\n                        \"fs/btrfs/relocation.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"7.1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"7.1\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/8249dfe46337d599e2087b772a2e32ef9f77282b","https://git.kernel.org/stable/c/e549093c11a2fff8430df3dfbdb45eb9811a69a5"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90266","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90266","identifiers":["CVE-2026-90266"]},"retained":false,"historicalAffected":[]}],"coverage":[]}