---
id: CVE-2026-98760
title: 'usb: typec: tipd: fix uninitialized typec_partner_desc in tps6598x_connect()'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  usb: typec: tipd: fix uninitialized typec_partner_desc in tps6598x_connect()

  tps6598x_connect() passes a stack-allocated typec_partner_desc to
  typec_register_partner()…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 0a4c005bd1715d8b32a368ed5516a6ee7e603d18 <
    4b6823ce0e548491cb9663303cba28e18d351096
  - >-
    Linux >= 0a4c005bd1715d8b32a368ed5516a6ee7e603d18 <
    282be6ae8be791762740107c79cecf5121f66063
  - >-
    Linux >= 0a4c005bd1715d8b32a368ed5516a6ee7e603d18 <
    dac0c073c6ad5f1bbb5e9fea9023fc1b4dab5e14
  - >-
    Linux >= 0a4c005bd1715d8b32a368ed5516a6ee7e603d18 <
    c4b27b3605788bbf9e4251f3cd4ab94645ab036f
  - Linux 4.15
published: '2026-10-18'
updated: '2026-10-18'
sourceUpdated: '2026-10-18T15:47:50.759Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-98760'
references:
  - url: 'https://git.kernel.org/stable/c/4b6823ce0e548491cb9663303cba28e18d351096'
  - url: 'https://git.kernel.org/stable/c/282be6ae8be791762740107c79cecf5121f66063'
  - url: 'https://git.kernel.org/stable/c/dac0c073c6ad5f1bbb5e9fea9023fc1b4dab5e14'
  - url: 'https://git.kernel.org/stable/c/c4b27b3605788bbf9e4251f3cd4ab94645ab036f'
tags:
  - cve.org
ingestedAt: '2026-10-18T16:47:32.496Z'
---

## Overview

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

usb: typec: tipd: fix uninitialized typec_partner_desc in tps6598x_connect()

tps6598x_connect() passes a stack-allocated typec_partner_desc to
typec_register_partner() after initializing only usb_pd, accessory and
identity.

typec_register_partner() copies attach and deattach from the descriptor
into the partner. With those fields left unset, garbage function pointers
may be stored and later invoked from typec_partner_link_device() when a USB
device is linked to the port. Uninitialized pd_revision and usb_capability
similarly leak stack data through partner sysfs.

Zero-initialize the descriptor so optional callbacks remain NULL and the
remaining fields are zero.

## Affected

- `Linux >= 0a4c005bd1715d8b32a368ed5516a6ee7e603d18 < 4b6823ce0e548491cb9663303cba28e18d351096`
- `Linux >= 0a4c005bd1715d8b32a368ed5516a6ee7e603d18 < 282be6ae8be791762740107c79cecf5121f66063`
- `Linux >= 0a4c005bd1715d8b32a368ed5516a6ee7e603d18 < dac0c073c6ad5f1bbb5e9fea9023fc1b4dab5e14`
- `Linux >= 0a4c005bd1715d8b32a368ed5516a6ee7e603d18 < c4b27b3605788bbf9e4251f3cd4ab94645ab036f`
- `Linux 4.15`

## Remediation

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