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.
References
Configurations
Configuration 1 (hide)
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History
No history.
Information
Published : 2026-03-25 11:16
Updated : 2026-06-17 10:21
NVD link : CVE-2026-23372
Mitre link : CVE-2026-23372
CVE.ORG link : CVE-2026-23372
JSON object : View
Products Affected
linux
- linux_kernel
CWE
