Description

In the Linux kernel, the following vulnerability has been resolved: nfc: rawsock: cancel tx_work before socket teardown In rawsock_release(), cancel any pending tx_work and purge the write queue before orphaning the socket. rawsock_tx_work runs on the system workqueue and calls nfc_data_exchange which dereferences the NCI device. Without synchronization, tx_work can race with socket and device teardown when a process is killed (e.g. by SIGKILL), leading to use-after-free or leaked references. Set SEND_SHUTDOWN first so that if tx_work is already running it will see the flag and skip transmitting, then use cancel_work_sync to wait for any in-progress execution to finish, and finally purge any remaining queued skbs.

INFO

Published Date :

2026-03-25T10:27:53.308Z

Last Modified :

2026-03-25T10:27:53.308Z

Source :

Linux
AFFECTED PRODUCTS

The following products are affected by CVE-2026-23372 vulnerability.

Vendors Products
Linux
  • Linux Kernel

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