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CVE-2026-45894

In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Clear Present bit before tearing down PASID entry The Intel VT-d Scalable Mode PASID table entry consists of 512 bits (64 bytes). When tearing down an entry, the current implementation zeros the entire 64-byte structure immediately using multiple 64-bit writes. Since the IOMMU hardware may fetch these 64 bytes using multiple internal transactions (e.g., four 128-bit bursts), updating or zeroing the entire entry wh
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:57f8c2f621a195a4c09a7b3dcf271c91cba8ddccafb3e52ed8db8b9a8781767e
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/iommu/intel/pasid.c","drivers/iommu/intel/pasid.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.0"},{"lessThan":"5.0","status":"unaffected","version":"0","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":"6.19.*","status":"unaffected","version":"6.19.4","…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3e76dfdfd9a53a6ca9f7684c5115e885889dd13656562204a2de561fe7312a1a · sha256:77cf7132c27702d9… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/iommu/intel/pasid.c","drivers/iommu/intel/pasid.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a84d30e8d2bacd21782a6481158b7c9c552f4868","status":"affected","version":"0bbeb01a4fafbf8422e5c8882d461d6ac4f71e15","versionType":"git"},{"lessThan":"821807c167b7b48a41b95b6607c6b9f97600f7d9","status":"affected","version":"0bbeb01a4fafbf8422e5c8882d461d6ac4f71e15","versionType":"git"},{"lessThan":"949d71666e9dd19f21e7b4b53a88cd2c5b902858","status":"affected"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3e76dfdfd9a53a6ca9f7684c5115e885889dd13656562204a2de561fe7312a1a · sha256:77cf7132c27702d9… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/iommu/intel/pasid.c","drivers/iommu/intel/pasid.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.0"},{"lessThan":"5.0","status":"unaffected","version":"0","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":"6.19.*","status":"unaffected","version":"6.19.4","…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3e76dfdfd9a53a6ca9f7684c5115e885889dd13656562204a2de561fe7312a1a · sha256:77cf7132c27702d9… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/iommu/intel/pasid.c","drivers/iommu/intel/pasid.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a84d30e8d2bacd21782a6481158b7c9c552f4868","status":"affected","version":"0bbeb01a4fafbf8422e5c8882d461d6ac4f71e15","versionType":"git"},{"lessThan":"821807c167b7b48a41b95b6607c6b9f97600f7d9","status":"affected","version":"0bbeb01a4fafbf8422e5c8882d461d6ac4f71e15","versionType":"git"},{"lessThan":"949d71666e9dd19f21e7b4b53a88cd2c5b902858","status":"affected"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3e76dfdfd9a53a6ca9f7684c5115e885889dd13656562204a2de561fe7312a1a · sha256:77cf7132c27702d9… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3e76dfdfd9a53a6ca9f7684c5115e885889dd13656562204a2de561fe7312a1a · sha256:77cf7132c27702d9… · /containers/cna/metrics/0/cvssV3_1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/75ed00055c059dedc47b5daaaa2f8a7a019138ff"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e76dfdfd9a53a6ca9f7684c5115e885889dd13656562204a2de561fe7312a1a · sha256:77cf7132c27702d9… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/821807c167b7b48a41b95b6607c6b9f97600f7d9"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e76dfdfd9a53a6ca9f7684c5115e885889dd13656562204a2de561fe7312a1a · sha256:77cf7132c27702d9… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/949d71666e9dd19f21e7b4b53a88cd2c5b902858"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e76dfdfd9a53a6ca9f7684c5115e885889dd13656562204a2de561fe7312a1a · sha256:77cf7132c27702d9… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/a84d30e8d2bacd21782a6481158b7c9c552f4868"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3e76dfdfd9a53a6ca9f7684c5115e885889dd13656562204a2de561fe7312a1a · sha256:77cf7132c27702d9… · /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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