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CVE-2026-43486

In the Linux kernel, the following vulnerability has been resolved: arm64: contpte: fix set_access_flags() no-op check for SMMU/ATS faults contpte_ptep_set_access_flags() compared the gathered ptep_get() value against the requested entry to detect no-ops. ptep_get() ORs AF/dirty from all sub-PTEs in the CONT block, so a dirty sibling can make the target appear already-dirty. When the gathered value matches entry, the function returns 0 even though the target sub-PTE still has PTE_RDONLY set in
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:47925b79be153695413b9034c989b52497fed70a1f7d2ff4df228d3318cc0427
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":["arch/arm64/mm/contpte.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":"6.12.*","status":"unaffected","version":"6.12.78","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.19","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.9","versionType":"semver"},{"lessThanO…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e11bd94dbfba64c66544e6e561ae858bf3440d7254e8b6adb77af63af84009b · sha256:e9cd987727588def… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/arm64/mm/contpte.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"05d239f2c95e66e27e7fb4e99ee07eb56e3e34b0","status":"affected","version":"4602e5757bcceb231c3a13c36c373ad4a750eddb","versionType":"git"},{"lessThan":"6f92a7a8b48a523f910ef25dd83808710724f59b","status":"affected","version":"4602e5757bcceb231c3a13c36c373ad4a750eddb","versionType":"git"},{"lessThan":"09d620555e59768776090073a2c59d2bc8506eb3","status":"affected","version":"4602e5757bcceb231c3a13…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e11bd94dbfba64c66544e6e561ae858bf3440d7254e8b6adb77af63af84009b · sha256:e9cd987727588def… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["arch/arm64/mm/contpte.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":"6.12.*","status":"unaffected","version":"6.12.78","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.19","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.9","versionType":"semver"},{"lessThanO…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e11bd94dbfba64c66544e6e561ae858bf3440d7254e8b6adb77af63af84009b · sha256:e9cd987727588def… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/arm64/mm/contpte.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"05d239f2c95e66e27e7fb4e99ee07eb56e3e34b0","status":"affected","version":"4602e5757bcceb231c3a13c36c373ad4a750eddb","versionType":"git"},{"lessThan":"6f92a7a8b48a523f910ef25dd83808710724f59b","status":"affected","version":"4602e5757bcceb231c3a13c36c373ad4a750eddb","versionType":"git"},{"lessThan":"09d620555e59768776090073a2c59d2bc8506eb3","status":"affected","version":"4602e5757bcceb231c3a13…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6e11bd94dbfba64c66544e6e561ae858bf3440d7254e8b6adb77af63af84009b · sha256:e9cd987727588def… · /containers/cna/affected/0

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/05d239f2c95e66e27e7fb4e99ee07eb56e3e34b0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6e11bd94dbfba64c66544e6e561ae858bf3440d7254e8b6adb77af63af84009b · sha256:e9cd987727588def… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/09d620555e59768776090073a2c59d2bc8506eb3"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6e11bd94dbfba64c66544e6e561ae858bf3440d7254e8b6adb77af63af84009b · sha256:e9cd987727588def… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/6f92a7a8b48a523f910ef25dd83808710724f59b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6e11bd94dbfba64c66544e6e561ae858bf3440d7254e8b6adb77af63af84009b · sha256:e9cd987727588def… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/97c5550b763171dbef61e6239cab372b9f9cd4a2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6e11bd94dbfba64c66544e6e561ae858bf3440d7254e8b6adb77af63af84009b · sha256:e9cd987727588def… · /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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