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CVE-2026-53157

net: phonet: free phonet_device after RCU grace period PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 before d59794337ea496042288c7c68356d9b9ca7f46a9; affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 before 6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763; affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 before 2ec8011cce0cd0fc7a5068585d867fc08d508578; affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 before 09c9b92c2010481160245244ea8fa1d06d5d4ae0; affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 before bd2ab4d800fc26814d89328d87b5f97ef6aa906a; affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 before 52b8f5ef82c886f7cd24617915e4b1579ddfd001; affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 before bff309ea51f1395c1ef8be8b75ce62d28a319113; affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 before 71de0177b28da751f407581a4515cf4d762f6296
Linux / Linuxaffected 2.6.33; unaffected 0 before 2.6.33; unaffected 5.10.260 through 5.10.*; unaffected 5.15.211 through 5.15.*; unaffected 6.1.177 through 6.1.*; unaffected 6.6.144 through 6.6.*; unaffected 6.12.95 through 6.12.*; unaffected 6.18.36 through 6.18.*; unaffected 7.0.13 through 7.0.*; unaffected 7.1 through *

CWE

No CWE identifiers supplied.

References