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CVE-2026-31666

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix incorrect return value after changing leaf in lookup_extent_data_ref() After commit 1618aa3c2e01 ("btrfs: simplify return variables in lookup_extent_data_ref()"), the err and ret variables were merged into a single ret variable. However, when btrfs_next_leaf() returns 0 (success), ret is overwritten from -ENOENT to 0. If the first key in the next leaf does not match (different objectid or type), the function returns
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:4ad7850595cc0be215b664884dd0e62d2bad8282dd24015d551998ca0cd7151d
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/btrfs/extent-tree.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4125a194db4a6cf91f619f38788272651cb97dce","status":"affected","version":"1618aa3c2e0163f5ac34d514ae89474521910536","versionType":"git"},{"lessThan":"450e6a685d0cad95b15f8af152057bd0bf79f50b","status":"affected","version":"1618aa3c2e0163f5ac34d514ae89474521910536","versionType":"git"},{"lessThan":"ab1e022379c3c811aa72da8eb0c7507859a1d0f5","status":"affected","version":"1618aa3c2e0163f5ac34d51…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ad65d3069f8cc0e8bbe46091459299dee1d033d6933f9410436a3338279abfdb · sha256:e2a2724a58f47851… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/btrfs/extent-tree.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":"6.12.*","status":"unaffected","version":"6.12.82","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.23","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.13","versionType":"semver"},{"lessTha…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ad65d3069f8cc0e8bbe46091459299dee1d033d6933f9410436a3338279abfdb · sha256:e2a2724a58f47851… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/btrfs/extent-tree.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4125a194db4a6cf91f619f38788272651cb97dce","status":"affected","version":"1618aa3c2e0163f5ac34d514ae89474521910536","versionType":"git"},{"lessThan":"450e6a685d0cad95b15f8af152057bd0bf79f50b","status":"affected","version":"1618aa3c2e0163f5ac34d514ae89474521910536","versionType":"git"},{"lessThan":"ab1e022379c3c811aa72da8eb0c7507859a1d0f5","status":"affected","version":"1618aa3c2e0163f5ac34d51…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ad65d3069f8cc0e8bbe46091459299dee1d033d6933f9410436a3338279abfdb · sha256:e2a2724a58f47851… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/btrfs/extent-tree.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":"6.12.*","status":"unaffected","version":"6.12.82","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.23","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.13","versionType":"semver"},{"lessTha…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ad65d3069f8cc0e8bbe46091459299dee1d033d6933f9410436a3338279abfdb · sha256:e2a2724a58f47851… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ad65d3069f8cc0e8bbe46091459299dee1d033d6933f9410436a3338279abfdb · sha256:e2a2724a58f47851… · /containers/cna/metrics/0/cvssV3_1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/316fb1b3169efb081d2db910cbbfef445afa03b9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ad65d3069f8cc0e8bbe46091459299dee1d033d6933f9410436a3338279abfdb · sha256:e2a2724a58f47851… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/4125a194db4a6cf91f619f38788272651cb97dce"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ad65d3069f8cc0e8bbe46091459299dee1d033d6933f9410436a3338279abfdb · sha256:e2a2724a58f47851… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/450e6a685d0cad95b15f8af152057bd0bf79f50b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ad65d3069f8cc0e8bbe46091459299dee1d033d6933f9410436a3338279abfdb · sha256:e2a2724a58f47851… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/ab1e022379c3c811aa72da8eb0c7507859a1d0f5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ad65d3069f8cc0e8bbe46091459299dee1d033d6933f9410436a3338279abfdb · sha256:e2a2724a58f47851… · /containers/cna/references/2

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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