CVE-2026-23150

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The Linux kernel contained a memory leak in the NFC LLCP (Logical Link Control Protocol) implementation, specifically within the nfc llcp send ui frame() function. The issue stemmed from a lack of synchronization between the function and the local cleanup() routine, leading to potential memory leaks when an skb (socket buffer) was queued into the local->tx queue after being purged during cleanup. The syzbot fuzzer identified this issue through reports of memory leaks related to NFC structures like nfc llcp sock, sk buff, and nfc dev. The root cause was that nfc llcp send ui frame() could attempt to allocate a skb after the socket had been released, resulting in a memory leak.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.