CVE-2026-98759usb: typec: tipd: fix uninitialized typec_partner_desc in cd321x_update_work()
Updated under an hour ago ()
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In the Linux kernel, the following vulnerability has been resolved: usb: typec: tipd: fix uninitialized typec_partner_desc in cd321x_update_work() cd321x_update_work() 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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
Linux Linux linux:linux (from the name) | 82432bbfb9e83b7e81d04660fe129b99a29b2ac2 builds before 75dc6cb377efd2f4428b7f76d3a590a0bbc10399; from 82432bbfb9e83b7e81d04660fe129b99a29b2ac2 before 5414144e202a32437e3eb436cd3f5f00d79ad86e; 82432bbfb9e83b7e81d04660fe129b99a29b2ac2 builds before 88c7e458af53ff781a3f1051708395892b325576 | CNA record |
References
- https://git.kernel.org/stable/c/75dc6cb377efd2f4428b7f76d3a590a0bbc10399
- https://git.kernel.org/stable/c/5414144e202a32437e3eb436cd3f5f00d79ad86e
- https://git.kernel.org/stable/c/88c7e458af53ff781a3f1051708395892b325576
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.