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CVE-2026-64364

In the Linux kernel, the following vulnerability has been resolved: HID: multitouch: fix out-of-bounds bit access on mt_io_flags mt_io_flags is a single unsigned long, but mt_process_slot(), mt_release_pending_palms() and mt_release_contacts() use it as a per-slot bitmap indexed by the slot number. That slot number is only bounded by td->maxcontacts, which is taken from the device's ContactCountMaximum feature report and can be up to 255, not by BITS_PER_LONG. As a result, a multitouch device
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:972716da7fe7039a9bcbf015a1bb31cbd734a23743b168f409fbf446a47e2900
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":["drivers/hid/hid-multitouch.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"12e90656e330ff8bbaf2f29c535fdb8a11cc6f55","status":"affected","version":"fc488f675344931ffab6a51c43691065ec006567","versionType":"git"},{"lessThan":"152983d87387f6a8ae72b73474cfa55fbcf1ec75","status":"affected","version":"77711d850bed75ae7142c3d1f22c1a8b4d049c33","versionType":"git"},{"lessThan":"b5c037d6b807017e74a115288f81bc9cd5a5aab8","status":"affected","version":"6acfe25968913788d…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:512dd7d1c691430ed97004b7d90bef5e04167e60e06b72c4c38388804c376500 · sha256:c18da7958c45165d… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/hid/hid-multitouch.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":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:512dd7d1c691430ed97004b7d90bef5e04167e60e06b72c4c38388804c376500 · sha256:c18da7958c45165d… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/hid/hid-multitouch.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"12e90656e330ff8bbaf2f29c535fdb8a11cc6f55","status":"affected","version":"fc488f675344931ffab6a51c43691065ec006567","versionType":"git"},{"lessThan":"152983d87387f6a8ae72b73474cfa55fbcf1ec75","status":"affected","version":"77711d850bed75ae7142c3d1f22c1a8b4d049c33","versionType":"git"},{"lessThan":"b5c037d6b807017e74a115288f81bc9cd5a5aab8","status":"affected","version":"6acfe25968913788d…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:512dd7d1c691430ed97004b7d90bef5e04167e60e06b72c4c38388804c376500 · sha256:c18da7958c45165d… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/hid/hid-multitouch.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":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:512dd7d1c691430ed97004b7d90bef5e04167e60e06b72c4c38388804c376500 · sha256:c18da7958c45165d… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/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:v2:512dd7d1c691430ed97004b7d90bef5e04167e60e06b72c4c38388804c376500 · sha256:c18da7958c45165d… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/12e90656e330ff8bbaf2f29c535fdb8a11cc6f55"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:512dd7d1c691430ed97004b7d90bef5e04167e60e06b72c4c38388804c376500 · sha256:c18da7958c45165d… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/152983d87387f6a8ae72b73474cfa55fbcf1ec75"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:512dd7d1c691430ed97004b7d90bef5e04167e60e06b72c4c38388804c376500 · sha256:c18da7958c45165d… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/37daa8c96bd563d03150e23f094cb60703594a6d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:512dd7d1c691430ed97004b7d90bef5e04167e60e06b72c4c38388804c376500 · sha256:c18da7958c45165d… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/6493ebf9489efef0105078377b973ab33d51af22"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:512dd7d1c691430ed97004b7d90bef5e04167e60e06b72c4c38388804c376500 · sha256:c18da7958c45165d… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/8813b0612275cc61fe9e6603d0ee019247ade6be"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:512dd7d1c691430ed97004b7d90bef5e04167e60e06b72c4c38388804c376500 · sha256:c18da7958c45165d… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/a6d5ce2e1a2d7bf189bde8a659d04b65f0b0725d"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:512dd7d1c691430ed97004b7d90bef5e04167e60e06b72c4c38388804c376500 · sha256:c18da7958c45165d… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/b5c037d6b807017e74a115288f81bc9cd5a5aab8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:512dd7d1c691430ed97004b7d90bef5e04167e60e06b72c4c38388804c376500 · sha256:c18da7958c45165d… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/e24918ee67c4dc3d20d4670750e46e9b160365f4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:512dd7d1c691430ed97004b7d90bef5e04167e60e06b72c4c38388804c376500 · sha256:c18da7958c45165d… · /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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