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CVE-2026-64053

In the Linux kernel, the following vulnerability has been resolved: block: don't overwrite bip_vcnt in bio_integrity_copy_user() bio_integrity_add_page() already sets bip_vcnt to 1 for the bounce segment. Overwriting it with nr_vecs breaks bip_vcnt <= bip_max_vcnt on WRITE (bip_max_vcnt is 1), so the gap-merge checks in block/blk.h read past the bip_vec[] flex array. On READ the read is in bounds but lands on a saved user bvec instead of the bounce. The line was added for split propagation, b
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1e8daaeb7e1acd4bf325d2a51a2762c10a46f1d9664e5ab26bf70c44825a2450
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":["block/bio-integrity.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d18160c9525c63c203656fefd847e94b538cd4a4","status":"affected","version":"3991657ae7074c3c497bf095093178bed37ea1b4","versionType":"git"},{"lessThan":"0d48654af4d1390c888389206cc13b51b82c30e6","status":"affected","version":"3991657ae7074c3c497bf095093178bed37ea1b4","versionType":"git"},{"lessThan":"066be1439593a381b1a29663becfcfe0c92363e7","status":"affected","version":"3991657ae7074c3c497bf095…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:70710bd046e17b3c736fe9548f8caf67bb9e9d7dcc59bc3fd75d5c17d90ac612 · sha256:47fe47a40476572f… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["block/bio-integrity.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.11"},{"lessThan":"6.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.92","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.34","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOr…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:70710bd046e17b3c736fe9548f8caf67bb9e9d7dcc59bc3fd75d5c17d90ac612 · sha256:47fe47a40476572f… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["block/bio-integrity.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d18160c9525c63c203656fefd847e94b538cd4a4","status":"affected","version":"3991657ae7074c3c497bf095093178bed37ea1b4","versionType":"git"},{"lessThan":"0d48654af4d1390c888389206cc13b51b82c30e6","status":"affected","version":"3991657ae7074c3c497bf095093178bed37ea1b4","versionType":"git"},{"lessThan":"066be1439593a381b1a29663becfcfe0c92363e7","status":"affected","version":"3991657ae7074c3c497bf095…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:70710bd046e17b3c736fe9548f8caf67bb9e9d7dcc59bc3fd75d5c17d90ac612 · sha256:47fe47a40476572f… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["block/bio-integrity.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.11"},{"lessThan":"6.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.92","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.34","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","versionType":"semver"},{"lessThanOr…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:70710bd046e17b3c736fe9548f8caf67bb9e9d7dcc59bc3fd75d5c17d90ac612 · sha256:47fe47a40476572f… · /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:v2:70710bd046e17b3c736fe9548f8caf67bb9e9d7dcc59bc3fd75d5c17d90ac612 · sha256:47fe47a40476572f… · /containers/cna/metrics/0/cvssV3_1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/066be1439593a381b1a29663becfcfe0c92363e7"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:70710bd046e17b3c736fe9548f8caf67bb9e9d7dcc59bc3fd75d5c17d90ac612 · sha256:47fe47a40476572f… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/0d48654af4d1390c888389206cc13b51b82c30e6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:70710bd046e17b3c736fe9548f8caf67bb9e9d7dcc59bc3fd75d5c17d90ac612 · sha256:47fe47a40476572f… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/637ad3a56a3b889527d1dacea6fea2a8bd648140"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:70710bd046e17b3c736fe9548f8caf67bb9e9d7dcc59bc3fd75d5c17d90ac612 · sha256:47fe47a40476572f… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/d18160c9525c63c203656fefd847e94b538cd4a4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:70710bd046e17b3c736fe9548f8caf67bb9e9d7dcc59bc3fd75d5c17d90ac612 · sha256:47fe47a40476572f… · /containers/cna/references/0

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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