CVE-2026-63947

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.

• CWE-125
• CWE-125

• https://git.kernel.org/stable/c/1f08a90013e1e632b34321334e861fcefc056505Patch
• https://git.kernel.org/stable/c/2a3ac9ee11dbb9845f3947cef4a79dba658cf6f6Patch
• https://git.kernel.org/stable/c/6348dfed5b0f9c6074f14322332e97493d32fef0Patch
• https://git.kernel.org/stable/c/b83dcacd2ec7fcc5a48be215f82d573759f87ec2Patch
• https://git.kernel.org/stable/c/cc3832b19f863e3677c5651f001a2e3795f39eb8Patch
• https://git.kernel.org/stable/c/d313683d6ccdd8c01e0562270a2ae25b86d8461dPatch
• https://git.kernel.org/stable/c/d7d6a81b8dd1a8d084a1b755db9406041d53adb5Patch

Published

Jul 19, 2026

Last Modified

Oct 28, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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