CVE-2026-53233 (GCVE-0-2026-53233)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:39 – Updated: 2026-06-25 08:39
VLAI
Title
netdev: fix double-free in netdev_nl_bind_rx_doit()
Summary
In the Linux kernel, the following vulnerability has been resolved: netdev: fix double-free in netdev_nl_bind_rx_doit() Sashiko flags that genlmsg_reply() always consumes the skb. The error path calls nlmsg_free(rsp) so we can't jump directly to it. Let's not unbind, just propagate the error to the user. This is the typical way of handling genlmsg_reply() failures. They shouldn't happen unless user does something silly like calling the kernel with an already-full rcvbuf.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 170aafe35cb98e0f3fbacb446ea86389fbce22ea , < e055ca9205d3eb6aec3e5fe4ecc18abbbf18c599 (git)
Affected: 170aafe35cb98e0f3fbacb446ea86389fbce22ea , < c299321bc6232770ce378d6fa6bc46004d2d7fdb (git)
Affected: 170aafe35cb98e0f3fbacb446ea86389fbce22ea , < 9b019376cbee10c4f9184d1745fa37d156e36f30 (git)
Affected: 170aafe35cb98e0f3fbacb446ea86389fbce22ea , < c849de7d8757a7af801fc4a4058f71d481d367f2 (git)
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Linux Linux Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.12.94 , ≤ 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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          "product": "Linux",
          "programFiles": [
            "net/core/netdev-genl.c"
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              "operator": "OR"
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetdev: fix double-free in netdev_nl_bind_rx_doit()\n\nSashiko flags that genlmsg_reply() always consumes the skb.\nThe error path calls nlmsg_free(rsp) so we can\u0027t jump directly\nto it. Let\u0027s not unbind, just propagate the error to the user.\nThis is the typical way of handling genlmsg_reply() failures.\nThey shouldn\u0027t happen unless user does something silly like\ncalling the kernel with an already-full rcvbuf."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-25T08:39:31.191Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "cveId": "CVE-2026-53233",
    "datePublished": "2026-06-25T08:39:31.191Z",
    "dateReserved": "2026-06-09T07:44:35.393Z",
    "dateUpdated": "2026-06-25T08:39:31.191Z",
    "state": "PUBLISHED"
  },
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      "date": "2026-07-02",
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  }
}


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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.

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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.
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  • 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.


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