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CVE-2026-63950

In the Linux kernel, the following vulnerability has been resolved: mm/rmap: initialize nr_pages to 1 at loop start in try_to_unmap_one Initialize nr_pages to 1 at the start of each loop iteration, like folio_referenced_one() does. Without this, nr_pages computed by a previous folio_unmap_pte_batch() call can be reused on a later iteration that does not run folio_unmap_pte_batch() again. mmap a 64K large folio with MAP_ANONYMOUS | MAP_DROPPABLE, then call madvise(MADV_FREE), then make the la
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:c7e1a545d131522599ebc5f6984aa9bd412815d316a8938921404a2790285501
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":["mm/rmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.35","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:19911f09549765bf0a9ae55c337f871a6a3a8b5fc6bf51834bbfa870b0146001 · sha256:4b79191cf700daaa… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/rmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0fcc34d0d8fefca4fea349e45c10e3a3d90350eb","status":"affected","version":"354dffd29575cdf13154e8fb787322354aa9efc4","versionType":"git"},{"lessThan":"f611db9b771b2b6775357555d2517af044fca4f0","status":"affected","version":"354dffd29575cdf13154e8fb787322354aa9efc4","versionType":"git"},{"lessThan":"3f8968e9cbf95d5d87d32218906cab0b9b9eddbe","status":"affected","version":"354dffd29575cdf13154e8fb787322354aa9…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:19911f09549765bf0a9ae55c337f871a6a3a8b5fc6bf51834bbfa870b0146001 · sha256:4b79191cf700daaa… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["mm/rmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.35","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:19911f09549765bf0a9ae55c337f871a6a3a8b5fc6bf51834bbfa870b0146001 · sha256:4b79191cf700daaa… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/rmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0fcc34d0d8fefca4fea349e45c10e3a3d90350eb","status":"affected","version":"354dffd29575cdf13154e8fb787322354aa9efc4","versionType":"git"},{"lessThan":"f611db9b771b2b6775357555d2517af044fca4f0","status":"affected","version":"354dffd29575cdf13154e8fb787322354aa9efc4","versionType":"git"},{"lessThan":"3f8968e9cbf95d5d87d32218906cab0b9b9eddbe","status":"affected","version":"354dffd29575cdf13154e8fb787322354aa9…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:19911f09549765bf0a9ae55c337f871a6a3a8b5fc6bf51834bbfa870b0146001 · sha256:4b79191cf700daaa… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:19911f09549765bf0a9ae55c337f871a6a3a8b5fc6bf51834bbfa870b0146001 · sha256:4b79191cf700daaa… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/0fcc34d0d8fefca4fea349e45c10e3a3d90350eb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:19911f09549765bf0a9ae55c337f871a6a3a8b5fc6bf51834bbfa870b0146001 · sha256:4b79191cf700daaa… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/3f8968e9cbf95d5d87d32218906cab0b9b9eddbe"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:19911f09549765bf0a9ae55c337f871a6a3a8b5fc6bf51834bbfa870b0146001 · sha256:4b79191cf700daaa… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/f611db9b771b2b6775357555d2517af044fca4f0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:19911f09549765bf0a9ae55c337f871a6a3a8b5fc6bf51834bbfa870b0146001 · sha256:4b79191cf700daaa… · /containers/cna/references/1

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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