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CVE-2026-31600

In the Linux kernel, the following vulnerability has been resolved: arm64: mm: Handle invalid large leaf mappings correctly It has been possible for a long time to mark ptes in the linear map as invalid. This is done for secretmem, kfence, realm dma memory un/share, and others, by simply clearing the PTE_VALID bit. But until commit a166563e7ec37 ("arm64: mm: support large block mapping when rodata=full") large leaf mappings were never made invalid in this way. It turns out various parts of th
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e25e4a252675df7e793f2ea1bd27d74be87a73747166d51f367bb89be7654f7b
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":["arch/arm64/include/asm/pgtable-prot.h","arch/arm64/include/asm/pgtable.h","arch/arm64/mm/mmu.c","arch/arm64/mm/pageattr.c","arch/arm64/mm/trans_pgd.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"8140b21d19015227a28c255404462f2d3e6edc9a","status":"affected","version":"a166563e7ec375b38a0fd3a58f7b77e50a6bc6a8","versionType":"git"},{"lessThan":"747b6482e4e227fd351197dde6f64a97107a9e52","status":"affected","version":"a166563e7ec375b38a0fd3a58f7b77e50a6bc6a8","ve…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:070b1b34df16d0c0e698cd0a52cc1d90b831e94c9e84d08461183db09ffa92e9 · sha256:93973760144cbce2… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["arch/arm64/include/asm/pgtable-prot.h","arch/arm64/include/asm/pgtable.h","arch/arm64/mm/mmu.c","arch/arm64/mm/pageattr.c","arch/arm64/mm/trans_pgd.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.24","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.14",…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:070b1b34df16d0c0e698cd0a52cc1d90b831e94c9e84d08461183db09ffa92e9 · sha256:93973760144cbce2… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/arm64/include/asm/pgtable-prot.h","arch/arm64/include/asm/pgtable.h","arch/arm64/mm/mmu.c","arch/arm64/mm/pageattr.c","arch/arm64/mm/trans_pgd.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"8140b21d19015227a28c255404462f2d3e6edc9a","status":"affected","version":"a166563e7ec375b38a0fd3a58f7b77e50a6bc6a8","versionType":"git"},{"lessThan":"747b6482e4e227fd351197dde6f64a97107a9e52","status":"affected","version":"a166563e7ec375b38a0fd3a58f7b77e50a6bc6a8","ve…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:070b1b34df16d0c0e698cd0a52cc1d90b831e94c9e84d08461183db09ffa92e9 · sha256:93973760144cbce2… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["arch/arm64/include/asm/pgtable-prot.h","arch/arm64/include/asm/pgtable.h","arch/arm64/mm/mmu.c","arch/arm64/mm/pageattr.c","arch/arm64/mm/trans_pgd.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.24","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.14",…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:070b1b34df16d0c0e698cd0a52cc1d90b831e94c9e84d08461183db09ffa92e9 · sha256:93973760144cbce2… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:070b1b34df16d0c0e698cd0a52cc1d90b831e94c9e84d08461183db09ffa92e9 · sha256:93973760144cbce2… · /containers/cna/metrics/0/cvssV3_1

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/15bfba1ad77fad8e45a37aae54b3c813b33fe27c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:070b1b34df16d0c0e698cd0a52cc1d90b831e94c9e84d08461183db09ffa92e9 · sha256:93973760144cbce2… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/747b6482e4e227fd351197dde6f64a97107a9e52"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:070b1b34df16d0c0e698cd0a52cc1d90b831e94c9e84d08461183db09ffa92e9 · sha256:93973760144cbce2… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/8140b21d19015227a28c255404462f2d3e6edc9a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:070b1b34df16d0c0e698cd0a52cc1d90b831e94c9e84d08461183db09ffa92e9 · sha256:93973760144cbce2… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/cbea627ea634f41c79d18f0c6d20db66fa93514c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:070b1b34df16d0c0e698cd0a52cc1d90b831e94c9e84d08461183db09ffa92e9 · sha256:93973760144cbce2… · /containers/cna/references/2

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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