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CVE-2026-72058 (GCVE-0-2026-72058)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:52 – Updated: 2026-08-23 12:46
VLAI
Title
net: ixp4xx_hss: fix duplicate HDLC netdev allocation
Summary
In the Linux kernel, the following vulnerability has been resolved: net: ixp4xx_hss: fix duplicate HDLC netdev allocation ixp4xx_hss_probe() allocates two HDLC netdevs. The first one is stored in ndev, initialized, and registered with register_hdlc_device(). The second one is stored in port->netdev and later used by the remove path for unregister_hdlc_device() and free_netdev(). This means that the registered netdev is not the same object that is unregistered and freed on remove. It also leaks the first allocation if the second alloc_hdlcdev() call fails, and the first allocation is not checked before ndev is used. Older code allocated the HDLC netdev only once and stored the same object in both the local variable and port->netdev. The buggy conversion split this into two alloc_hdlcdev() calls. A later rename changed the local variable name to ndev, but the underlying mismatch remained. Fix this by allocating the HDLC netdev only once and assigning the same object to port->netdev.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 99ebe65eb9c0ada015931d239d9f2d1dc8897fee , < 77d925b948ee594a79afe66f85bb94b67940140b (git)
Affected: 99ebe65eb9c0ada015931d239d9f2d1dc8897fee , < 8f4c3c384092becbf4835a3f8ed8a3df1f544578 (git)
Affected: 99ebe65eb9c0ada015931d239d9f2d1dc8897fee , < fd0b939ebd1eee29945a539c5ed65c35dddac8d6 (git)
Affected: 99ebe65eb9c0ada015931d239d9f2d1dc8897fee , < ffba16e6f55948d94b7f16aa113d587c1c4c0643 (git)
Affected: 99ebe65eb9c0ada015931d239d9f2d1dc8897fee , < 3f85fcd520aa703824b1958f35169925ddae2558 (git)
Affected: 99ebe65eb9c0ada015931d239d9f2d1dc8897fee , < 91850f582783098415a334f8bd0a84c87ff15a8c (git)
Affected: 99ebe65eb9c0ada015931d239d9f2d1dc8897fee , < db818b0e8af7bac16860116a19c341a63d6677b4 (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.14
Unaffected: 0 , < 5.14 (semver)
Unaffected: 5.15.217 , ≤ 5.15.* (semver)
Unaffected: 6.1.178 , ≤ 6.1.* (semver)
Unaffected: 6.6.145 , ≤ 6.6.* (semver)
Unaffected: 6.12.97 , ≤ 6.12.* (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-17T19:22:05+00:00",
      "cve": "CVE-2026-72058",
      "id": "CVE-2026-72058",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: ixp4xx_hss: fix duplicate HDLC netdev allocation",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72058.json",
      "version": "3"
    }
  }
}



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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.