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
No CVSS data available.
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)
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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)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: phonet: free phonet_device after RCU grace period\n\nphonet_device_destroy() removes a phonet_device from the per-net device\nlist with list_del_rcu(), but frees it immediately. RCU readers walking\nthe same list can still hold a pointer to the object after it has been\nremoved, leading to a slab-use-after-free.\n\nUse kfree_rcu(), matching the lifetime rule already used by\nphonet_address_del() for the same object type."
        }
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      "providerMetadata": {
        "dateUpdated": "2026-07-04T11:50:55.214Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "datePublished": "2026-06-25T08:38:40.132Z",
    "dateReserved": "2026-06-09T07:44:35.388Z",
    "dateUpdated": "2026-07-04T11:50:55.214Z",
    "state": "PUBLISHED"
  },
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      "date": "2026-07-06",
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  }
}


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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.