CVE-2026-53157 (GCVE-0-2026-53157)
Vulnerability from cvelistv5
Published
2026-06-25 08:38
Modified
2026-07-04 11:50
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: eeb74a9d45f781ec6f47b9e0a75a6a427b53f165
Version: eeb74a9d45f781ec6f47b9e0a75a6a427b53f165
Version: eeb74a9d45f781ec6f47b9e0a75a6a427b53f165
Version: eeb74a9d45f781ec6f47b9e0a75a6a427b53f165
Version: eeb74a9d45f781ec6f47b9e0a75a6a427b53f165
Version: eeb74a9d45f781ec6f47b9e0a75a6a427b53f165
Version: eeb74a9d45f781ec6f47b9e0a75a6a427b53f165
Version: eeb74a9d45f781ec6f47b9e0a75a6a427b53f165
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{
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          "programFiles": [
            "net/phonet/pn_dev.c"
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              "version": "0",
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-04T11:50:55.214Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d59794337ea496042288c7c68356d9b9ca7f46a9"
        },
        {
          "url": "https://git.kernel.org/stable/c/6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763"
        },
        {
          "url": "https://git.kernel.org/stable/c/2ec8011cce0cd0fc7a5068585d867fc08d508578"
        },
        {
          "url": "https://git.kernel.org/stable/c/09c9b92c2010481160245244ea8fa1d06d5d4ae0"
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        {
          "url": "https://git.kernel.org/stable/c/bd2ab4d800fc26814d89328d87b5f97ef6aa906a"
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          "url": "https://git.kernel.org/stable/c/52b8f5ef82c886f7cd24617915e4b1579ddfd001"
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          "url": "https://git.kernel.org/stable/c/bff309ea51f1395c1ef8be8b75ce62d28a319113"
        },
        {
          "url": "https://git.kernel.org/stable/c/71de0177b28da751f407581a4515cf4d762f6296"
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      ],
      "title": "net: phonet: free phonet_device after RCU grace period",
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53157",
    "datePublished": "2026-06-25T08:38:40.132Z",
    "dateReserved": "2026-06-09T07:44:35.388Z",
    "dateUpdated": "2026-07-04T11:50:55.214Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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