CVE-2026-53157

net: phonet: free phonet_device after RCU grace period

State: Published
Severity: Not scored
Published: Jun 25, 2026
Updated: Jul 4, 2026
Reserved: Jun 9, 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 to before d59794337ea496042288c7c68356d9b9ca7f46a9Affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 to before 6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763Affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 to before 2ec8011cce0cd0fc7a5068585d867fc08d508578Affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 to before 09c9b92c2010481160245244ea8fa1d06d5d4ae0Affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 to before bd2ab4d800fc26814d89328d87b5f97ef6aa906aAffected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 to before 52b8f5ef82c886f7cd24617915e4b1579ddfd001Affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 to before bff309ea51f1395c1ef8be8b75ce62d28a319113Affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 to before 71de0177b28da751f407581a4515cf4d762f6296Affected
LinuxLinux	2.6.33Affected before 2.6.33Not affected 5.10.260 through 5.10.Not affected 5.15.211 through 5.15.Not affected 6.1.177 through 6.1.Not affected 6.6.144 through 6.6.Not affected 6.12.95 through 6.12.Not affected 6.18.36 through 6.18.Not affected 7.0.13 through 7.0.*Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 to before d59794337ea496042288c7c68356d9b9ca7f46a9Affected
eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 to before 6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763Affected
eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 to before 2ec8011cce0cd0fc7a5068585d867fc08d508578Affected
eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 to before 09c9b92c2010481160245244ea8fa1d06d5d4ae0Affected
eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 to before bd2ab4d800fc26814d89328d87b5f97ef6aa906aAffected
eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 to before 52b8f5ef82c886f7cd24617915e4b1579ddfd001Affected
eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 to before bff309ea51f1395c1ef8be8b75ce62d28a319113Affected
eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 to before 71de0177b28da751f407581a4515cf4d762f6296Affected

LinuxLinux

2.6.33Affected
before 2.6.33Not affected
5.10.260 through 5.10.*Not affected
5.15.211 through 5.15.*Not affected
6.1.177 through 6.1.*Not affected
6.6.144 through 6.6.*Not affected
6.12.95 through 6.12.*Not affected
6.18.36 through 6.18.*Not affected
7.0.13 through 7.0.*Not affected
7.1 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.