CVEvulnerability
CVE-2026-98760
- Status
- Received
- Published
- 2026-10-18
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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.
References
- https://git.kernel.org/stable/c/282be6ae8be791762740107c79cecf5121f66063 git.kernel.org
- https://git.kernel.org/stable/c/4b6823ce0e548491cb9663303cba28e18d351096 git.kernel.org
- https://git.kernel.org/stable/c/a39d53f70e637ff3970046c32106a0e64fca62cd git.kernel.org
- https://git.kernel.org/stable/c/c4b27b3605788bbf9e4251f3cd4ab94645ab036f git.kernel.org
- https://git.kernel.org/stable/c/dac0c073c6ad5f1bbb5e9fea9023fc1b4dab5e14 git.kernel.org