CVE-2026-23372

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.

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 3% of CVEs (scores of 2026-10-25)

Published

2026-03-25

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/3ae592ed91bb4b6b51df256b51045c13d2656049
• https://git.kernel.org/stable/c/722a28b635ec281bb08a23885223526d8e7d6526
• https://git.kernel.org/stable/c/78141b8832e16d80d09cbefb4258612db0777a24
• https://git.kernel.org/stable/c/9b2d23cd09e1cb56bdf0e4d5614703094159f16c
• https://git.kernel.org/stable/c/cdeed45ce8c92defd057f7d67ee9a69374d8fa16

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