In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free rx_data_reassembly skb on NCI device cleanup rx_data_reassembly skb is stored during NCI data exchange for processing fragmented packets. It is dropped only when the last fragment is processed or when an NTF packet with NCI_OP_RF_DEACTIVATE_NTF opcode is received. However, the NCI device may be deallocated before that which leads to skb leak. As by design the rx_data_reassembly skb is bound to the NCI device and nothing prevents the device to be freed before the skb is processed in some way and cleaned, free it on the NCI device cleanup. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

ID	Name	Product	Family	Severity
197101	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6766-2)	Nessus	Ubuntu Local Security Checks	high
197056	SUSE SLES15 / openSUSE 15 Security Update : kernel (SUSE-SU-2024:1644-1)	Nessus	SuSE Local Security Checks	high
196947	Ubuntu 20.04 LTS : Linux kernel (BlueField) vulnerabilities (USN-6767-2)	Nessus	Ubuntu Local Security Checks	high
195135	Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-6767-1)	Nessus	Ubuntu Local Security Checks	high
195134	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6766-1)	Nessus	Ubuntu Local Security Checks	high
195025	Debian dsa-5681 : affs-modules-5.10.0-29-4kc-malta-di - security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2024-26825

medium

Tenable Plugins

high

high

high

high

high

high