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CVE-2026-72024 (GCVE-0-2026-72024)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:51 – Updated: 2026-08-17 05:39
VLAI
Title
mac802154: remove interfaces with RCU list deletion
Summary
In the Linux kernel, the following vulnerability has been resolved: mac802154: remove interfaces with RCU list deletion Queue wake, stop, and disable paths walk local->interfaces under RCU. The bulk hardware teardown path removes entries with list_del(), so an asynchronous transmit completion can follow a poisoned list node in ieee802154_wake_queue(). Use list_del_rcu() as in the single-interface removal path. The following unregister_netdevice() waits for in-flight RCU readers before freeing the netdevice, so no separate grace-period wait is needed.
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: 592dfbfc72f5352437c883aa11ab579d10cdb595 , < 72ac5af9ad09662bd0ea91cb8845d490c8ef9c01 (git)
Affected: 592dfbfc72f5352437c883aa11ab579d10cdb595 , < 2039f27b1a0c997137a5de7f8a3cee0e80fbf952 (git)
Affected: 592dfbfc72f5352437c883aa11ab579d10cdb595 , < 4bf231f459b542414629b64f63d5cad6701bd07c (git)
Affected: 592dfbfc72f5352437c883aa11ab579d10cdb595 , < b91e5248dd7af09b500879a46d22a36b60db3a57 (git)
Affected: 592dfbfc72f5352437c883aa11ab579d10cdb595 , < c7c031b75218b3ba3014a0f6b9849888994528d6 (git)
Affected: 592dfbfc72f5352437c883aa11ab579d10cdb595 , < 77caf2d6eba7cb94a7ecd7b369a5974fd7d7c054 (git)
Affected: 592dfbfc72f5352437c883aa11ab579d10cdb595 , < d8b5b66388a51febe4b8505b0ecd9da15b4ba639 (git)
Affected: 592dfbfc72f5352437c883aa11ab579d10cdb595 , < 539dfcf69105d8d3d4d677b71de6e5ede2e6dfa0 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.19
Unaffected: 0 , < 3.19 (semver)
Unaffected: 5.10.261 , ≤ 5.10.* (semver)
Unaffected: 5.15.212 , ≤ 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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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmac802154: remove interfaces with RCU list deletion\n\nQueue wake, stop, and disable paths walk local-\u003einterfaces under RCU.\nThe bulk hardware teardown path removes entries with list_del(), so an\nasynchronous transmit completion can follow a poisoned list node in\nieee802154_wake_queue().\n\nUse list_del_rcu() as in the single-interface removal path. The following\nunregister_netdevice() waits for in-flight RCU readers before freeing the\nnetdevice, so no separate grace-period wait is needed."
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              "value": "AV:L - Exploitation requires local syscalls to transmit on an IEEE 802.15.4 interface and concurrently tear down the mac802154 hardware (e.g., mac802154_hwsim DEL_RADIO or driver unregister); remote 802.15.4 frames do not reach ieee802154_remove_interfaces().\nAC:L - The attacker controls both sides of the race by concurrently sending traffic (sendmmsg on AF_IEEE802154) while deleting the radio/hardware; syzbot reliably reproduced the crash without external timing dependencies.\nPR:L - With mac802154_hwsim loaded, CAP_NET_ADMIN in a user namespace suffices to bring up wpan interfaces, transmit packets, and issue MAC802154_HWSIM_CMD_DEL_RADIO (GENL_UNS_ADMIN_PERM); AF_IEEE802154 sockets also require only namespace CAP_NET_ADMIN/CAP_NET_RAW.\nUI:N - No victim interaction is required; the attacker triggers the race entirely through their own netlink and socket operations without needing another user to perform any action.\nS:U - Impact is confined to kernel memory corruption and privilege boundaries within the same kernel; this is not a VM escape, IOMMU bypass, or cross-security-authority boundary violation.\nC:H - The RCU list walk in ieee802154_wake_queue() dereferences poisoned/freed list nodes (KASAN wild-memory-access at dead000000000218), constituting use-after-free class memory corruption that can expose adjacent kernel heap contents.\nI:H - Corrupted list traversal can pass attacker-influenced sdata/netdev pointers into netif_wake_queue(), enabling heap corruption primitives and potential control-flow hijacking beyond a simple crash.\nA:H - The syzbot reproducer causes a general protection fault kernel oops in ieee802154_release_queue(); the use-after-free class bug can panic or hang the system even when not fully exploited for code execution."
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    "dateReserved": "2026-08-09T03:40:39.900Z",
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-17T17:47:47+00:00",
      "cve": "CVE-2026-72024",
      "id": "CVE-2026-72024",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_affected": "232",
      "product_status:known_not_affected": "42",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: mac802154: remove interfaces with RCU list deletion",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-72024.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.