net: phonet: free phonet_device after RCU grace period

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-53157
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-25 09:16:33 UTC
Updated2026-07-07 18:54:28 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

EPSS: 0.001840000 probability, percentile 0.081890000 (date 2026-07-05)

Problem Types: CWE-416

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 d59794337ea496042288c7c68356d9b9ca7f46a9 git Not specified
CNA Linux Linux affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763 git Not specified
CNA Linux Linux affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 2ec8011cce0cd0fc7a5068585d867fc08d508578 git Not specified
CNA Linux Linux affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 09c9b92c2010481160245244ea8fa1d06d5d4ae0 git Not specified
CNA Linux Linux affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 bd2ab4d800fc26814d89328d87b5f97ef6aa906a git Not specified
CNA Linux Linux affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 52b8f5ef82c886f7cd24617915e4b1579ddfd001 git Not specified
CNA Linux Linux affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 bff309ea51f1395c1ef8be8b75ce62d28a319113 git Not specified
CNA Linux Linux affected eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 71de0177b28da751f407581a4515cf4d762f6296 git Not specified
CNA Linux Linux affected 2.6.33 Not specified
CNA Linux Linux unaffected 2.6.33 semver Not specified
CNA Linux Linux unaffected 5.10.260 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.211 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.177 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.144 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.95 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.36 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.13 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/2ec8011cce0cd0fc7a5068585d867fc08d508578 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/09c9b92c2010481160245244ea8fa1d06d5d4ae0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/52b8f5ef82c886f7cd24617915e4b1579ddfd001 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/71de0177b28da751f407581a4515cf4d762f6296 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/bff309ea51f1395c1ef8be8b75ce62d28a319113 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/bd2ab4d800fc26814d89328d87b5f97ef6aa906a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/d59794337ea496042288c7c68356d9b9ca7f46a9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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