---
id: CVE-2026-72352
title: 'HID: bpf: Fix hid_bpf_get_data() range check'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  HID: bpf: Fix hid_bpf_get_data() range check

  hid_bpf_get_data() returns a pointer into the HID-BPF context data when
  the caller-provided offset and size fit inside ctx…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-787
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 658ee5a64fcfbbf758447fa3af425729eaabb0dc <
    f72176bde0cc0e709e41ab170c71e8f229232af6
  - >-
    Linux >= 658ee5a64fcfbbf758447fa3af425729eaabb0dc <
    ca373549140dfb386aa2de38364b58441b1f4885
  - >-
    Linux >= 658ee5a64fcfbbf758447fa3af425729eaabb0dc <
    61a959b82f1aecd6d2d35c208013dd077cac9d10
  - >-
    Linux >= 658ee5a64fcfbbf758447fa3af425729eaabb0dc <
    f81bc5a709dcbaf2a3bbef4ca7167f93900cc39f
  - >-
    Linux >= 658ee5a64fcfbbf758447fa3af425729eaabb0dc <
    2d044049421dd48212b28646a850749d4a2d57fa
  - Linux 6.3
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-16T18:47:53.495070Z'
published: '2026-08-15'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T12:44:39.607Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-72352'
references:
  - url: 'https://git.kernel.org/stable/c/f72176bde0cc0e709e41ab170c71e8f229232af6'
  - url: 'https://git.kernel.org/stable/c/ca373549140dfb386aa2de38364b58441b1f4885'
  - url: 'https://git.kernel.org/stable/c/61a959b82f1aecd6d2d35c208013dd077cac9d10'
  - url: 'https://git.kernel.org/stable/c/f81bc5a709dcbaf2a3bbef4ca7167f93900cc39f'
  - url: 'https://git.kernel.org/stable/c/2d044049421dd48212b28646a850749d4a2d57fa'
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72352.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-72352'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2516733'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-72352'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-72352'
  - url: >-
      https://lore.kernel.org/linux-cve-announce/2026081512-CVE-2026-72352-9ba2@gregkh/T
tags:
  - cve.org
  - csaf
  - vex
  - red-hat
  - score-dispute
epss: 0.00175
epssPercentile: 0.06993
scores:
  cna: 7.8
  vendor: 5.5
ingestedAt: '2026-10-16T19:46:24.405Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

HID: bpf: Fix hid_bpf_get_data() range check

hid_bpf_get_data() returns a pointer into the HID-BPF context data when
the caller-provided offset and size fit inside ctx->allocated_size.

The current check adds rdwr_buf_size and offset before comparing the
result against ctx->allocated_size. Since both values are unsigned, a
very large size can wrap the sum below ctx->allocated_size and make the
helper return a pointer even though the requested range is not contained
in the backing buffer.

Use check_add_overflow() to reject wrapped range ends before comparing
the requested range end against ctx->allocated_size.

## Affected

- `Linux >= 658ee5a64fcfbbf758447fa3af425729eaabb0dc < f72176bde0cc0e709e41ab170c71e8f229232af6`
- `Linux >= 658ee5a64fcfbbf758447fa3af425729eaabb0dc < ca373549140dfb386aa2de38364b58441b1f4885`
- `Linux >= 658ee5a64fcfbbf758447fa3af425729eaabb0dc < 61a959b82f1aecd6d2d35c208013dd077cac9d10`
- `Linux >= 658ee5a64fcfbbf758447fa3af425729eaabb0dc < f81bc5a709dcbaf2a3bbef4ca7167f93900cc39f`
- `Linux >= 658ee5a64fcfbbf758447fa3af425729eaabb0dc < 2d044049421dd48212b28646a850749d4a2d57fa`
- `Linux 6.3`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72352.json)