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CVE-2026-64512

In the Linux kernel, the following vulnerability has been resolved: ACPI: CPPC: Suppress UBSAN warning caused by field misuse The definition of reg->access_width changes depending on the reg->space_id type. Type ACPI_ADR_SPACE_PLATFORM_COMM uses access_width to indicate the PCC region, which can result in a UBSAN if the value is greater than 4. For example: UBSAN: shift-out-of-bounds in drivers/acpi/cppc_acpi.c:1090:9 shift exponent 32 is too large for 32-bit type 'int' CPU: 61 UID: 0 PI
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2a6e36ddaa1c8a5adc9930e1b3e1a5c74ee285fffd1d5799940fa392f8ad26d0
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/acpi/cppc_acpi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.9"},{"lessThan":"6.9","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.155","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThan…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:70d5c18da14ad716785f20a7896c5054d1b5fb8fe1a9018b5138ede72cf19de0 · sha256:613a2677a1765349… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/acpi/cppc_acpi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b54c4632946ae42f2b39ed38abd909bbf78cbcc2","status":"affected","version":"4949affd5288b867cdf115f5b08d6166b2027f87","versionType":"git"},{"lessThan":"e904596ba6dd108534ffa15e3e46b2fe245145e2","status":"affected","version":"01fc53be672acae37e611c80cc0b4f3939584de3","versionType":"git"},{"lessThan":"2fb80e962029000959f651665baa4838cc92eb99","status":"affected","version":"1b890ae474d19800a6be1…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:70d5c18da14ad716785f20a7896c5054d1b5fb8fe1a9018b5138ede72cf19de0 · sha256:613a2677a1765349… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/acpi/cppc_acpi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.9"},{"lessThan":"6.9","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.155","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThan…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:70d5c18da14ad716785f20a7896c5054d1b5fb8fe1a9018b5138ede72cf19de0 · sha256:613a2677a1765349… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/acpi/cppc_acpi.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b54c4632946ae42f2b39ed38abd909bbf78cbcc2","status":"affected","version":"4949affd5288b867cdf115f5b08d6166b2027f87","versionType":"git"},{"lessThan":"e904596ba6dd108534ffa15e3e46b2fe245145e2","status":"affected","version":"01fc53be672acae37e611c80cc0b4f3939584de3","versionType":"git"},{"lessThan":"2fb80e962029000959f651665baa4838cc92eb99","status":"affected","version":"1b890ae474d19800a6be1…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:70d5c18da14ad716785f20a7896c5054d1b5fb8fe1a9018b5138ede72cf19de0 · sha256:613a2677a1765349… · /containers/cna/affected/0

Source references

7 source assertions
{"url":"https://git.kernel.org/stable/c/1b1acf2dada0cc3931bb2cb9ff8832edfbee46a1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:70d5c18da14ad716785f20a7896c5054d1b5fb8fe1a9018b5138ede72cf19de0 · sha256:613a2677a1765349… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/2fb80e962029000959f651665baa4838cc92eb99"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:70d5c18da14ad716785f20a7896c5054d1b5fb8fe1a9018b5138ede72cf19de0 · sha256:613a2677a1765349… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/37f28bf8f14672dfa395994e41fd778a63f0bf5c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:70d5c18da14ad716785f20a7896c5054d1b5fb8fe1a9018b5138ede72cf19de0 · sha256:613a2677a1765349… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/b54c4632946ae42f2b39ed38abd909bbf78cbcc2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:70d5c18da14ad716785f20a7896c5054d1b5fb8fe1a9018b5138ede72cf19de0 · sha256:613a2677a1765349… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/dc066bd13c860bb27d6ace511210e18b8064c1d9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:70d5c18da14ad716785f20a7896c5054d1b5fb8fe1a9018b5138ede72cf19de0 · sha256:613a2677a1765349… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/e904596ba6dd108534ffa15e3e46b2fe245145e2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:70d5c18da14ad716785f20a7896c5054d1b5fb8fe1a9018b5138ede72cf19de0 · sha256:613a2677a1765349… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/f29dc6132d4968e39d8fa575d1a12e2c718ce57b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:70d5c18da14ad716785f20a7896c5054d1b5fb8fe1a9018b5138ede72cf19de0 · sha256:613a2677a1765349… · /containers/cna/references/4

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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