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CVE-2026-31449

In the Linux kernel, the following vulnerability has been resolved: ext4: validate p_idx bounds in ext4_ext_correct_indexes ext4_ext_correct_indexes() walks up the extent tree correcting index entries when the first extent in a leaf is modified. Before accessing path[k].p_idx->ei_block, there is no validation that p_idx falls within the valid range of index entries for that level. If the on-disk extent header contains a corrupted or crafted eh_entries value, p_idx can point past the end of th
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:36e0cbe4a7d6ed7d1f18b3b68eea1afae00135468acd178cd0a522392a404f2a
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/ext4/extents.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"39d6e2b67651614bac0dc6592fa9836321910067","status":"affected","version":"a86c61812637c7dd0c57e29880cffd477b62f2e7","versionType":"git"},{"lessThan":"c5839b34704c9c2f47f079451bdbb22de0da1ed1","status":"affected","version":"a86c61812637c7dd0c57e29880cffd477b62f2e7","versionType":"git"},{"lessThan":"10242e640b36b91ad03d25f3dc77854bbdff8358","status":"affected","version":"a86c61812637c7dd0c57e29880cf…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bffc6ad923dedad449a9099b3341ae72ce4eb8466cc576cdd0347290a589c5e5 · sha256:0b17a9300dbfcf8b… · /containers/cna/affected/0

{"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":"2.6.19"},{"lessThan":"2.6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessTha…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bffc6ad923dedad449a9099b3341ae72ce4eb8466cc576cdd0347290a589c5e5 · sha256:0b17a9300dbfcf8b… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"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":"39d6e2b67651614bac0dc6592fa9836321910067","status":"affected","version":"a86c61812637c7dd0c57e29880cffd477b62f2e7","versionType":"git"},{"lessThan":"c5839b34704c9c2f47f079451bdbb22de0da1ed1","status":"affected","version":"a86c61812637c7dd0c57e29880cffd477b62f2e7","versionType":"git"},{"lessThan":"10242e640b36b91ad03d25f3dc77854bbdff8358","status":"affected","version":"a86c61812637c7dd0c57e29880cf…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bffc6ad923dedad449a9099b3341ae72ce4eb8466cc576cdd0347290a589c5e5 · sha256:0b17a9300dbfcf8b… · /containers/cna/affected/0
{"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":"2.6.19"},{"lessThan":"2.6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessTha…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bffc6ad923dedad449a9099b3341ae72ce4eb8466cc576cdd0347290a589c5e5 · sha256:0b17a9300dbfcf8b… · /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:N/UI:R/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:bffc6ad923dedad449a9099b3341ae72ce4eb8466cc576cdd0347290a589c5e5 · sha256:0b17a9300dbfcf8b… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/01bf1e0b997d82c0e353b51ed74ef99698043c33"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bffc6ad923dedad449a9099b3341ae72ce4eb8466cc576cdd0347290a589c5e5 · sha256:0b17a9300dbfcf8b… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/10242e640b36b91ad03d25f3dc77854bbdff8358"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bffc6ad923dedad449a9099b3341ae72ce4eb8466cc576cdd0347290a589c5e5 · sha256:0b17a9300dbfcf8b… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/2acb5c12ebd860f30e4faf67e6cc8c44ddfe5fe8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bffc6ad923dedad449a9099b3341ae72ce4eb8466cc576cdd0347290a589c5e5 · sha256:0b17a9300dbfcf8b… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/39d6e2b67651614bac0dc6592fa9836321910067"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bffc6ad923dedad449a9099b3341ae72ce4eb8466cc576cdd0347290a589c5e5 · sha256:0b17a9300dbfcf8b… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/407c944f217c17d4343148011acafebc604d55e1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bffc6ad923dedad449a9099b3341ae72ce4eb8466cc576cdd0347290a589c5e5 · sha256:0b17a9300dbfcf8b… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/4d08401aa13f1531216f1a7ae281ca4806e90a5c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bffc6ad923dedad449a9099b3341ae72ce4eb8466cc576cdd0347290a589c5e5 · sha256:0b17a9300dbfcf8b… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/93f2e975ed658ce09db4d4c2877ca2c06540df83"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bffc6ad923dedad449a9099b3341ae72ce4eb8466cc576cdd0347290a589c5e5 · sha256:0b17a9300dbfcf8b… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/c5839b34704c9c2f47f079451bdbb22de0da1ed1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bffc6ad923dedad449a9099b3341ae72ce4eb8466cc576cdd0347290a589c5e5 · sha256:0b17a9300dbfcf8b… · /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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