CVE-2026-53157

Published: June 27, 2026Last modified: June 27, 2026

Description

In the Linux kernel, the following vulnerability has been resolved: net: phonet: free phonet_device after RCU grace period phonet_device_destroy() removes a phonet_device from the per-net device list with list_del_rcu(), but frees it immediately. RCU readers walking the same list can still hold a pointer to the object after it has been removed, leading to a slab-use-after-free. Use kfree_rcu(), matching the lifetime rule already used by phonet_address_del() for the same object type.

Status

References

• https://git.kernel.org/stable/c/52b8f5ef82c886f7cd24617915e4b1579ddfd001
• https://git.kernel.org/stable/c/71de0177b28da751f407581a4515cf4d762f6296
• https://git.kernel.org/stable/c/bff309ea51f1395c1ef8be8b75ce62d28a319113