7.8
High
CVE-2026-23372 In the Linux kernel, the following vulnerability has been resolved: nfc: rawsock: cancel tx_work before socket…
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.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux 7.0 | earliest → < 7.0 | 7.0 |
| Linux 6.19 | earliest → < 6.19.7 | 6.19.7 |
| Linux 6.18 | earliest → < 6.18.17 | 6.18.17 |
| Linux 6.12 | earliest → < 6.12.77 | 6.12.77 |
| Linux 6.6 | earliest → < 6.6.130 | 6.6.130 |
| Linux 6.1 | earliest → < 6.1.167 | 6.1.167 |
| Linux 5.15 | earliest → < 5.15.203 | 5.15.203 |
| Linux 5.10 | earliest → < 5.10.253 | 5.10.253 |
| Linux | 3.1 | No fix stated |
Show the other branch Hide the other branch
| Product | Affected versions | Fixed in |
|---|---|---|
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | Versions not published |
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