CVE-2026-90224

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-90224

Key Details

CVE	CVE-2026-90224
CVSS Score / Version	7.5 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is adjacent; attack complexity is high; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

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

nfc: nci: fix double completion race in nci_data_exchange_complete

nci_close_device() and nci_rx_work can both call

nci_data_exchange_complete() concurrently. After commit 4527025d440ce8

("nfc: nci: fix circular locking dependency in nci_close_device") moved

flush_workqueue(ndev->rx_wq) after mutex_unlock(&ndev->req_lock),

rx_work is no longer serialized with the explicit completion call in the

close path. Both callers read the non-NULL callback pointer and invoke

rawsock_data_exchange_complete(), which calls sock_put() -- but only one

sock_hold() was taken, so the second sock_put() underflows the refcount

and frees the socket while it is still in use.

Replace the bare clear_bit(NCI_DATA_EXCHANGE) with

test_and_clear_bit() so that only the first caller proceeds to invoke

the callback. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-90224
CVE	https://www.cve.org/CVERecord?id=CVE-2026-90224

Source

Reference

NVD

CVE