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CVE-2026-31648

In the Linux kernel, the following vulnerability has been resolved: mm: filemap: fix nr_pages calculation overflow in filemap_map_pages() When running stress-ng on my Arm64 machine with v7.0-rc3 kernel, I encountered some very strange crash issues showing up as "Bad page state": " [ 734.496287] BUG: Bad page state in process stress-ng-env pfn:415735fb [ 734.496427] page: refcount:0 mapcount:1 mapping:0000000000000000 index:0x4cf316 pfn:0x415735fb [ 734.496434] flags: 0x57fffe000000800(own
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1df023f4ab4a898389595fdd864d4459cb10dee31fb6d7f9defc1912195558cd
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":["mm/filemap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"88591194df736a508dd5461ab2167a61e98caac1","status":"affected","version":"fe601b70eac6cd266e8d7d55030e90a73ed0e339","versionType":"git"},{"lessThan":"633ab680c405ac390e6bec5b74aaf46197c837b6","status":"affected","version":"743a2753a02e805347969f6f89f38b736850d808","versionType":"git"},{"lessThan":"576543bedd616254032d4ebe54a90076f9e31740","status":"affected","version":"743a2753a02e805347969f6f89f38b736…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ab12fc9ac97221171a402d8bd7fcab65085dc9524a59b67e3c349605282bcf10 · sha256:e3b4e61b8fea65f7… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["mm/filemap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.12"},{"lessThan":"6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.135","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.82","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.23","versionType":"semver"},{"lessThanOrEqual":"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ab12fc9ac97221171a402d8bd7fcab65085dc9524a59b67e3c349605282bcf10 · sha256:e3b4e61b8fea65f7… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["mm/filemap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"88591194df736a508dd5461ab2167a61e98caac1","status":"affected","version":"fe601b70eac6cd266e8d7d55030e90a73ed0e339","versionType":"git"},{"lessThan":"633ab680c405ac390e6bec5b74aaf46197c837b6","status":"affected","version":"743a2753a02e805347969f6f89f38b736850d808","versionType":"git"},{"lessThan":"576543bedd616254032d4ebe54a90076f9e31740","status":"affected","version":"743a2753a02e805347969f6f89f38b736…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ab12fc9ac97221171a402d8bd7fcab65085dc9524a59b67e3c349605282bcf10 · sha256:e3b4e61b8fea65f7… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["mm/filemap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.12"},{"lessThan":"6.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.135","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.82","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.23","versionType":"semver"},{"lessThanOrEqual":"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ab12fc9ac97221171a402d8bd7fcab65085dc9524a59b67e3c349605282bcf10 · sha256:e3b4e61b8fea65f7… · /containers/cna/affected/1

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:ab12fc9ac97221171a402d8bd7fcab65085dc9524a59b67e3c349605282bcf10 · sha256:e3b4e61b8fea65f7… · /containers/cna/metrics/0/cvssV3_1

Source references

5 source assertions
{"url":"https://git.kernel.org/stable/c/576543bedd616254032d4ebe54a90076f9e31740"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ab12fc9ac97221171a402d8bd7fcab65085dc9524a59b67e3c349605282bcf10 · sha256:e3b4e61b8fea65f7… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/633ab680c405ac390e6bec5b74aaf46197c837b6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ab12fc9ac97221171a402d8bd7fcab65085dc9524a59b67e3c349605282bcf10 · sha256:e3b4e61b8fea65f7… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/88591194df736a508dd5461ab2167a61e98caac1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ab12fc9ac97221171a402d8bd7fcab65085dc9524a59b67e3c349605282bcf10 · sha256:e3b4e61b8fea65f7… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/9316a820b9aae07d44469d6485376dad824c5b3f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ab12fc9ac97221171a402d8bd7fcab65085dc9524a59b67e3c349605282bcf10 · sha256:e3b4e61b8fea65f7… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/f58df566524ebcdfa394329c64f47e3c9257516e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ab12fc9ac97221171a402d8bd7fcab65085dc9524a59b67e3c349605282bcf10 · sha256:e3b4e61b8fea65f7… · /containers/cna/references/4

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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