CVE-2026-63947 (GCVE-0-2026-63947)

Vulnerability from cvelistv5 – Published: 2026-07-19 14:55 – Updated: 2026-07-20 13:41
VLAI
Title
Bluetooth: HIDP: fix missing length checks in hidp_input_report()
Summary
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HIDP: fix missing length checks in hidp_input_report() hidp_input_report() reads keyboard and mouse payload data from an skb without first verifying that skb->len contains enough data. hidp_recv_intr_frame() pulls the 1-byte HIDP header before dispatching to hidp_input_report(). If a paired device sends a truncated packet, the handler reads beyond the valid skb data, resulting in an out-of-bounds read of skb data. The OOB bytes may be interpreted as phantom key presses or spurious mouse movement. Replace the open-coded length tracking and pointer arithmetic with skb_pull_data() calls. skb_pull_data() returns NULL if the requested bytes are not present, eliminating the need for a manual size variable and the separate skb->len guard.
Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1f08a90013e1e632b34321334e861fcefc056505 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < cc3832b19f863e3677c5651f001a2e3795f39eb8 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d313683d6ccdd8c01e0562270a2ae25b86d8461d (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d7d6a81b8dd1a8d084a1b755db9406041d53adb5 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6348dfed5b0f9c6074f14322332e97493d32fef0 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b83dcacd2ec7fcc5a48be215f82d573759f87ec2 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2a3ac9ee11dbb9845f3947cef4a79dba658cf6f6 (git)
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Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 5.15.210 , ≤ 5.15.* (semver)
Unaffected: 6.1.176 , ≤ 6.1.* (semver)
Unaffected: 6.6.143 , ≤ 6.6.* (semver)
Unaffected: 6.12.93 , ≤ 6.12.* (semver)
Unaffected: 6.18.35 , ≤ 6.18.* (semver)
Unaffected: 7.0.12 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.