CVE-2026-53157 (GCVE-0-2026-53157)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:38 – Updated: 2026-07-04 11:50
VLAI
Title
net: phonet: free phonet_device after RCU grace period
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 , < d59794337ea496042288c7c68356d9b9ca7f46a9 (git)
Affected: eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 , < 6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763 (git)
Affected: eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 , < 2ec8011cce0cd0fc7a5068585d867fc08d508578 (git)
Affected: eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 , < 09c9b92c2010481160245244ea8fa1d06d5d4ae0 (git)
Affected: eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 , < bd2ab4d800fc26814d89328d87b5f97ef6aa906a (git)
Affected: eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 , < 52b8f5ef82c886f7cd24617915e4b1579ddfd001 (git)
Affected: eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 , < bff309ea51f1395c1ef8be8b75ce62d28a319113 (git)
Affected: eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 , < 71de0177b28da751f407581a4515cf4d762f6296 (git)
Create a notification for this product.
Linux Linux Affected: 2.6.33
Unaffected: 0 , < 2.6.33 (semver)
Unaffected: 5.10.260 , ≤ 5.10.* (semver)
Unaffected: 5.15.211 , ≤ 5.15.* (semver)
Unaffected: 6.1.177 , ≤ 6.1.* (semver)
Unaffected: 6.6.144 , ≤ 6.6.* (semver)
Unaffected: 6.12.95 , ≤ 6.12.* (semver)
Unaffected: 6.18.36 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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    "redhat_vex": {
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      "current_release_date": "2026-07-07T19:06:06+00:00",
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      "initial_release_date": "2026-06-25T00:00:00+00:00",
      "product_status:known_affected": "14",
      "product_status:known_not_affected": "260",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: phonet: free phonet_device after RCU grace period",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53157.json",
      "version": "3"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.