CVEvulnerability
CVE-2026-72352
7.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-15
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
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.
References
- https://git.kernel.org/stable/c/2d044049421dd48212b28646a850749d4a2d57fa git.kernel.org
- https://git.kernel.org/stable/c/61a959b82f1aecd6d2d35c208013dd077cac9d10 git.kernel.org
- https://git.kernel.org/stable/c/ca373549140dfb386aa2de38364b58441b1f4885 git.kernel.org
- https://git.kernel.org/stable/c/f72176bde0cc0e709e41ab170c71e8f229232af6 git.kernel.org
- https://git.kernel.org/stable/c/f81bc5a709dcbaf2a3bbef4ca7167f93900cc39f git.kernel.org