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CVE PROGRAM SOURCE RECORD8.8 High

CVE-2026-63947

Bluetooth: HIDP: fix missing length checks in hidp_input_report()

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 1f08a90013e1e632b34321334e861fcefc056505affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < cc3832b19f863e3677c5651f001a2e3795f39eb8affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < d313683d6ccdd8c01e0562270a2ae25b86d8461daffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < d7d6a81b8dd1a8d084a1b755db9406041d53adb5affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 6348dfed5b0f9c6074f14322332e97493d32fef0affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < b83dcacd2ec7fcc5a48be215f82d573759f87ec2affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 2a3ac9ee11dbb9845f3947cef4a79dba658cf6f6affected

Linux Linux

Default version status: affected

  • 2.6.12affected
  • 0 to < 2.6.12unaffected
  • 5.15.210 to ≤ 5.15.*unaffected
  • 6.1.176 to ≤ 6.1.*unaffected
  • 6.6.143 to ≤ 6.6.*unaffected
  • 6.12.93 to ≤ 6.12.*unaffected
  • 6.18.35 to ≤ 6.18.*unaffected
  • 7.0.12 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References