CVE-2026-53157

high

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.

References

https://git.kernel.org/stable/c/d59794337ea496042288c7c68356d9b9ca7f46a9

https://git.kernel.org/stable/c/bff309ea51f1395c1ef8be8b75ce62d28a319113

https://git.kernel.org/stable/c/bd2ab4d800fc26814d89328d87b5f97ef6aa906a

https://git.kernel.org/stable/c/71de0177b28da751f407581a4515cf4d762f6296

https://git.kernel.org/stable/c/6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763

https://git.kernel.org/stable/c/52b8f5ef82c886f7cd24617915e4b1579ddfd001

https://git.kernel.org/stable/c/2ec8011cce0cd0fc7a5068585d867fc08d508578

https://git.kernel.org/stable/c/09c9b92c2010481160245244ea8fa1d06d5d4ae0

Details

Source: Mitre, NVD

Published: 2026-06-25

Updated: 2026-07-07

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

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

Severity: High

EPSS

EPSS: 0.00173