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CVE-2026-45858

In the Linux kernel, the following vulnerability has been resolved: ext4: don't zero the entire extent if EXT4_EXT_DATA_PARTIAL_VALID1 When allocating initialized blocks from a large unwritten extent, or when splitting an unwritten extent during end I/O and converting it to initialized, there is currently a potential issue of stale data if the extent needs to be split in the middle. 0 A B N [UUUUUUUUUUUU] U: unwritten extent [--DDDDDDDD--] D: valid data
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1f230fc104454cadaf3a02a6b0c584daef49d5d53ac90098a70239978d456504
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/ext4/extents.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.7"},{"lessThan":"3.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f1a92715b819ecff3c112b7b81eb66c94e893bb0f576e0bd05286953d9e57820 · sha256:421b5904c083e89c… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/ext4/extents.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"58ddae5d77b1db3a27b891c75a8fa120239ac092","status":"affected","version":"dee1f973ca341c266229faa5a1a5bb268bed3531","versionType":"git"},{"lessThan":"d17857b4fb9ba5745b59be0ef38fd532991fccbf","status":"affected","version":"dee1f973ca341c266229faa5a1a5bb268bed3531","versionType":"git"},{"lessThan":"d67c8ecf3d8fda9b8ef80e6f665d84b6d6ac9d88","status":"affected","version":"dee1f973ca341c266229faa5a1a5…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f1a92715b819ecff3c112b7b81eb66c94e893bb0f576e0bd05286953d9e57820 · sha256:421b5904c083e89c… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/ext4/extents.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.7"},{"lessThan":"3.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessThanOrEqual…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f1a92715b819ecff3c112b7b81eb66c94e893bb0f576e0bd05286953d9e57820 · sha256:421b5904c083e89c… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/ext4/extents.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"58ddae5d77b1db3a27b891c75a8fa120239ac092","status":"affected","version":"dee1f973ca341c266229faa5a1a5bb268bed3531","versionType":"git"},{"lessThan":"d17857b4fb9ba5745b59be0ef38fd532991fccbf","status":"affected","version":"dee1f973ca341c266229faa5a1a5bb268bed3531","versionType":"git"},{"lessThan":"d67c8ecf3d8fda9b8ef80e6f665d84b6d6ac9d88","status":"affected","version":"dee1f973ca341c266229faa5a1a5…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f1a92715b819ecff3c112b7b81eb66c94e893bb0f576e0bd05286953d9e57820 · sha256:421b5904c083e89c… · /containers/cna/affected/0

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/1bf6974822d1dba86cf11b5f05498581cf3488a2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f1a92715b819ecff3c112b7b81eb66c94e893bb0f576e0bd05286953d9e57820 · sha256:421b5904c083e89c… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/58ddae5d77b1db3a27b891c75a8fa120239ac092"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f1a92715b819ecff3c112b7b81eb66c94e893bb0f576e0bd05286953d9e57820 · sha256:421b5904c083e89c… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/7015fcf473796e1d2d876f241bd9e0c36f3d4eef"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f1a92715b819ecff3c112b7b81eb66c94e893bb0f576e0bd05286953d9e57820 · sha256:421b5904c083e89c… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/d17857b4fb9ba5745b59be0ef38fd532991fccbf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f1a92715b819ecff3c112b7b81eb66c94e893bb0f576e0bd05286953d9e57820 · sha256:421b5904c083e89c… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/d67c8ecf3d8fda9b8ef80e6f665d84b6d6ac9d88"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f1a92715b819ecff3c112b7b81eb66c94e893bb0f576e0bd05286953d9e57820 · sha256:421b5904c083e89c… · /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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