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CVE-2026-45851

In the Linux kernel, the following vulnerability has been resolved: efi: Fix reservation of unaccepted memory table The reserve_unaccepted() function incorrectly calculates the size of the memblock reservation for the unaccepted memory table. It aligns the size of the table, but fails to account for cases where the table's starting physical address (efi.unaccepted) is not page-aligned. If the table starts at an offset within a page and its end crosses into a subsequent page that the aligned s
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b8ffe3d2699b2eaf888638f4d51ffcdfbf919597c972a43e9ff3f727330a6b31
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":["drivers/firmware/efi/efi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.6"},{"lessThan":"6.6","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.128","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessTh…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3445dbc11daeae474b123fc06396f425f89bd2f1aca77aa5951a4d35e1322db1 · sha256:cd5dd2a06212e205… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/firmware/efi/efi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b7bc182ec1846be437351e44164089d988f9d0dd","status":"affected","version":"8dbe33956d96c9d066ef15ca933ede30748198b2","versionType":"git"},{"lessThan":"ba6b6f1502fa55621d1db23f253d54322bdbe4e0","status":"affected","version":"8dbe33956d96c9d066ef15ca933ede30748198b2","versionType":"git"},{"lessThan":"9b18bf59977f5c5bc3b11b210520f62500a7adf3","status":"affected","version":"8dbe33956d96c9d066e…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3445dbc11daeae474b123fc06396f425f89bd2f1aca77aa5951a4d35e1322db1 · sha256:cd5dd2a06212e205… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/firmware/efi/efi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.6"},{"lessThan":"6.6","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.128","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.75","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.14","versionType":"semver"},{"lessTh…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3445dbc11daeae474b123fc06396f425f89bd2f1aca77aa5951a4d35e1322db1 · sha256:cd5dd2a06212e205… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/firmware/efi/efi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b7bc182ec1846be437351e44164089d988f9d0dd","status":"affected","version":"8dbe33956d96c9d066ef15ca933ede30748198b2","versionType":"git"},{"lessThan":"ba6b6f1502fa55621d1db23f253d54322bdbe4e0","status":"affected","version":"8dbe33956d96c9d066ef15ca933ede30748198b2","versionType":"git"},{"lessThan":"9b18bf59977f5c5bc3b11b210520f62500a7adf3","status":"affected","version":"8dbe33956d96c9d066e…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3445dbc11daeae474b123fc06396f425f89bd2f1aca77aa5951a4d35e1322db1 · sha256:cd5dd2a06212e205… · /containers/cna/affected/0

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/0862438c90487e79822d5647f854977d50381505"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3445dbc11daeae474b123fc06396f425f89bd2f1aca77aa5951a4d35e1322db1 · sha256:cd5dd2a06212e205… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/9b18bf59977f5c5bc3b11b210520f62500a7adf3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3445dbc11daeae474b123fc06396f425f89bd2f1aca77aa5951a4d35e1322db1 · sha256:cd5dd2a06212e205… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/b7bc182ec1846be437351e44164089d988f9d0dd"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3445dbc11daeae474b123fc06396f425f89bd2f1aca77aa5951a4d35e1322db1 · sha256:cd5dd2a06212e205… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/ba6b6f1502fa55621d1db23f253d54322bdbe4e0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3445dbc11daeae474b123fc06396f425f89bd2f1aca77aa5951a4d35e1322db1 · sha256:cd5dd2a06212e205… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/e649b5916725c68f44ebf45fb396df563c5dbaf2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3445dbc11daeae474b123fc06396f425f89bd2f1aca77aa5951a4d35e1322db1 · sha256:cd5dd2a06212e205… · /containers/cna/references/3

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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