High 7.8Published Jun 25, 2026

CVE-2026-53157net: phonet: free phonet_device after RCU grace period

Updated under an hour ago (Oct 26, 2026, 10:30 PM ET)

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Exploited in the last 30 days

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.

CVSS: 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Jul 4, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 before d59794337ea496042288c7c68356d9b9ca7f46a9; from eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 before 6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763; from eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 before 2ec8011cce0cd0fc7a5068585d867fc08d508578; from eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 before 09c9b92c2010481160245244ea8fa1d06d5d4ae0; from eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 before bd2ab4d800fc26814d89328d87b5f97ef6aa906a; from eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 before 52b8f5ef82c886f7cd24617915e4b1579ddfd001; from eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 before bff309ea51f1395c1ef8be8b75ce62d28a319113; from eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 before 71de0177b28da751f407581a4515cf4d762f6296	CNA record
linux linux_kernel linux:linux_kernel	from 2.6.33 before 5.10.260; from 5.11 before 5.15.211; from 5.16 before 6.1.177; from 6.2 before 6.6.144; from 6.7 before 6.12.95; from 6.13 before 6.18.36; from 6.19 before 7.0.13; 7.1; and 6 more ranges	NVD

References

References

https://git.kernel.org/stable/c/d59794337ea496042288c7c68356d9b9ca7f46a9	patch
https://git.kernel.org/stable/c/6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763	patch
https://git.kernel.org/stable/c/2ec8011cce0cd0fc7a5068585d867fc08d508578	patch
https://git.kernel.org/stable/c/09c9b92c2010481160245244ea8fa1d06d5d4ae0	patch
https://git.kernel.org/stable/c/bd2ab4d800fc26814d89328d87b5f97ef6aa906a	patch
https://git.kernel.org/stable/c/52b8f5ef82c886f7cd24617915e4b1579ddfd001	patch
https://git.kernel.org/stable/c/bff309ea51f1395c1ef8be8b75ce62d28a319113	patch
https://git.kernel.org/stable/c/71de0177b28da751f407581a4515cf4d762f6296	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.