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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
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 CPE status
Linux Linux Affected: 170aafe35cb98e0f3fbacb446ea86389fbce22ea , < e055ca9205d3eb6aec3e5fe4ecc18abbbf18c599 (git)
Affected: 170aafe35cb98e0f3fbacb446ea86389fbce22ea , < c299321bc6232770ce378d6fa6bc46004d2d7fdb (git)
Affected: 170aafe35cb98e0f3fbacb446ea86389fbce22ea , < 9b019376cbee10c4f9184d1745fa37d156e36f30 (git)
Affected: 170aafe35cb98e0f3fbacb446ea86389fbce22ea , < c849de7d8757a7af801fc4a4058f71d481d367f2 (git)
guessed Create a notification for this product.
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)
guessed Create a notification for this product.
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{
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      "affected": [
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/core/netdev-genl.c"
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    "redhat_vex": {
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      "cve": "CVE-2026-53233",
      "id": "CVE-2026-53233",
      "initial_release_date": "2026-06-25T00:00:00+00:00",
      "product_status:known_affected": "76",
      "product_status:known_not_affected": "198",
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      "status": "final",
      "title": "kernel: netdev: fix double-free in netdev_nl_bind_rx_doit()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53233.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-09-10T16:56:37Z",
      "cve": "CVE-2026-53233",
      "id": "CVE-2026-53233",
      "initial_release_date": "2026-06-26T02:09:14Z",
      "product_status:first_fixed": "2",
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      "product_status:recommended": "209",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-53233",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-53233.json",
      "version": "13"
    }
  }
}



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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.

Sightings

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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.
  • 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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.