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CVE-2026-53109

In the Linux kernel, the following vulnerability has been resolved: powerpc/pgtable-frag: Fix bad page state in pte_frag_destroy powerpc uses pt_frag_refcount as a reference counter for tracking it's pte and pmd page table fragments. For PTE table, in case of Hash with 64K pagesize, we have 16 fragments of 4K size in one 64K page. Patch series [1] "mm: free retracted page table by RCU" added pte_free_defer() to defer the freeing of PTE tables when retract_page_tables() is called for madvise M
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9b79304a4b73a5156ede9077d7c3802f63b5ec9f18acb30504b6125f4a9a2f4f
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/powerpc/mm/pgtable-frag.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":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:12398f6577cf9d49af190ed695b1f41cd6923118381a65eebbeb1e04427ecd6a · sha256:3796ce72c344a7de… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/powerpc/mm/pgtable-frag.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c8b710655012a2993a9567873fb71a8a51f8459c","status":"affected","version":"32cc0b7c9d508efde8946a82eb3c4acfa8dfed15","versionType":"git"},{"lessThan":"a32db6fca3c74b4eb8bae5470f0680deb4cbac6f","status":"affected","version":"32cc0b7c9d508efde8946a82eb3c4acfa8dfed15","versionType":"git"},{"lessThan":"fda4d71651f71c44b35829d13f3c8bf920032f77","status":"affected","version":"32cc0b7c9d508ef…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:12398f6577cf9d49af190ed695b1f41cd6923118381a65eebbeb1e04427ecd6a · sha256:3796ce72c344a7de… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["arch/powerpc/mm/pgtable-frag.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":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:12398f6577cf9d49af190ed695b1f41cd6923118381a65eebbeb1e04427ecd6a · sha256:3796ce72c344a7de… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["arch/powerpc/mm/pgtable-frag.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c8b710655012a2993a9567873fb71a8a51f8459c","status":"affected","version":"32cc0b7c9d508efde8946a82eb3c4acfa8dfed15","versionType":"git"},{"lessThan":"a32db6fca3c74b4eb8bae5470f0680deb4cbac6f","status":"affected","version":"32cc0b7c9d508efde8946a82eb3c4acfa8dfed15","versionType":"git"},{"lessThan":"fda4d71651f71c44b35829d13f3c8bf920032f77","status":"affected","version":"32cc0b7c9d508ef…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:12398f6577cf9d49af190ed695b1f41cd6923118381a65eebbeb1e04427ecd6a · sha256:3796ce72c344a7de… · /containers/cna/affected/0

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/a32db6fca3c74b4eb8bae5470f0680deb4cbac6f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:12398f6577cf9d49af190ed695b1f41cd6923118381a65eebbeb1e04427ecd6a · sha256:3796ce72c344a7de… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/c8b710655012a2993a9567873fb71a8a51f8459c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:12398f6577cf9d49af190ed695b1f41cd6923118381a65eebbeb1e04427ecd6a · sha256:3796ce72c344a7de… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/fda4d71651f71c44b35829d13f3c8bf920032f77"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:12398f6577cf9d49af190ed695b1f41cd6923118381a65eebbeb1e04427ecd6a · sha256:3796ce72c344a7de… · /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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