Answer in brief
CVE-2026-63947 records a High severity (CVSS 8.8) vulnerability in Bluetooth: HIDP: fix missing length checks in hidp_input_report(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.12:-:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1f08a90013e1e632b34321334e861fcefc056505 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cc3832b19f863e3677c5651f001a2e3795f39eb8 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d313683d6ccdd8c01e0562270a2ae25b86d8461d || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d7d6a81b8dd1a8d084a1b755db9406041d53adb5 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6348dfed5b0f9c6074f14322332e97493d32fef0 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <b83dcacd2ec7fcc5a48be215f82d573759f87ec2 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2a3ac9ee11dbb9845f3947cef4a79dba658cf6f6 | 1f08a90013e1e632b34321334e861fcefc056505, cc3832b19f863e3677c5651f001a2e3795f39eb8, d313683d6ccdd8c01e0562270a2ae25b86d8461d, d7d6a81b8dd1a8d084a1b755db9406041d53adb5, 6348dfed5b0f9c6074f14322332e97493d32fef0, b83dcacd2ec7fcc5a48be215f82d573759f87ec2, 2a3ac9ee11dbb9845f3947cef4a79dba658cf6f6 |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
Jul 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.