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CVE-2026-31463

In the Linux kernel, the following vulnerability has been resolved: iomap: fix invalid folio access when i_blkbits differs from I/O granularity Commit aa35dd5cbc06 ("iomap: fix invalid folio access after folio_end_read()") partially addressed invalid folio access for folios without an ifs attached, but it did not handle the case where 1 << inode->i_blkbits matches the folio size but is different from the granularity used for the IO, which means IO can be submitted for less than the full folio
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:cca6aecb949af1564ef391308697557bd07ff7e69ba30b3f70f7615454ff78cd
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":"affected","product":"Linux","programFiles":["fs/iomap/buffered-io.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:56baede4f7ed34c51db97dacc5973d49b270b3e41e40c77eba93c6c62ff81762 · sha256:0a0ba086945bceda… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/iomap/buffered-io.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4a927f670cdb0def226f9f85f42a9f19d9e09c88","status":"affected","version":"b2f35ac4146d32d4424aaa941bbc681f12c1b9e6","versionType":"git"},{"lessThan":"bd71fb3fea9945987053968f028a948997cba8cc","status":"affected","version":"b2f35ac4146d32d4424aaa941bbc681f12c1b9e6","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:56baede4f7ed34c51db97dacc5973d49b270b3e41e40c77eba93c6c62ff81762 · sha256:0a0ba086945bceda… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/iomap/buffered-io.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:56baede4f7ed34c51db97dacc5973d49b270b3e41e40c77eba93c6c62ff81762 · sha256:0a0ba086945bceda… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/iomap/buffered-io.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4a927f670cdb0def226f9f85f42a9f19d9e09c88","status":"affected","version":"b2f35ac4146d32d4424aaa941bbc681f12c1b9e6","versionType":"git"},{"lessThan":"bd71fb3fea9945987053968f028a948997cba8cc","status":"affected","version":"b2f35ac4146d32d4424aaa941bbc681f12c1b9e6","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:56baede4f7ed34c51db97dacc5973d49b270b3e41e40c77eba93c6c62ff81762 · sha256:0a0ba086945bceda… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":9.8,"baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/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:v2:56baede4f7ed34c51db97dacc5973d49b270b3e41e40c77eba93c6c62ff81762 · sha256:0a0ba086945bceda… · /containers/cna/metrics/0/cvssV3_1

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/4a927f670cdb0def226f9f85f42a9f19d9e09c88"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:56baede4f7ed34c51db97dacc5973d49b270b3e41e40c77eba93c6c62ff81762 · sha256:0a0ba086945bceda… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/bd71fb3fea9945987053968f028a948997cba8cc"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:56baede4f7ed34c51db97dacc5973d49b270b3e41e40c77eba93c6c62ff81762 · sha256:0a0ba086945bceda… · /containers/cna/references/1

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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