CVE-2026-72024 (GCVE-0-2026-72024)
Vulnerability from cvelistv5
Published
2026-08-15 05:51
Modified
2026-08-17 05:39
Severity ?
VLAI Severity ?
EPSS score ?
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.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 592dfbfc72f5352437c883aa11ab579d10cdb595 Version: 592dfbfc72f5352437c883aa11ab579d10cdb595 Version: 592dfbfc72f5352437c883aa11ab579d10cdb595 Version: 592dfbfc72f5352437c883aa11ab579d10cdb595 Version: 592dfbfc72f5352437c883aa11ab579d10cdb595 Version: 592dfbfc72f5352437c883aa11ab579d10cdb595 Version: 592dfbfc72f5352437c883aa11ab579d10cdb595 Version: 592dfbfc72f5352437c883aa11ab579d10cdb595 |
||
{
"containers": {
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"product": "Linux",
"programFiles": [
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"vendor": "Linux",
"versions": [
{
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"version": "3.19"
},
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "5.10.261",
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{
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"status": "unaffected",
"version": "5.15.212",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.178",
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},
{
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"status": "unaffected",
"version": "6.6.145",
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},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.97",
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},
{
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"version": "6.18.40",
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},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.5",
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},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
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}
],
"cpeApplicability": [
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"nodes": [
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],
"negate": false,
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],
"descriptions": [
{
"lang": "en",
"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."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"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."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-17T05:39:32.685Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"references": [
{
"url": "https://git.kernel.org/stable/c/72ac5af9ad09662bd0ea91cb8845d490c8ef9c01"
},
{
"url": "https://git.kernel.org/stable/c/2039f27b1a0c997137a5de7f8a3cee0e80fbf952"
},
{
"url": "https://git.kernel.org/stable/c/4bf231f459b542414629b64f63d5cad6701bd07c"
},
{
"url": "https://git.kernel.org/stable/c/b91e5248dd7af09b500879a46d22a36b60db3a57"
},
{
"url": "https://git.kernel.org/stable/c/c7c031b75218b3ba3014a0f6b9849888994528d6"
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{
"url": "https://git.kernel.org/stable/c/77caf2d6eba7cb94a7ecd7b369a5974fd7d7c054"
},
{
"url": "https://git.kernel.org/stable/c/d8b5b66388a51febe4b8505b0ecd9da15b4ba639"
},
{
"url": "https://git.kernel.org/stable/c/539dfcf69105d8d3d4d677b71de6e5ede2e6dfa0"
}
],
"title": "mac802154: remove interfaces with RCU list deletion",
"x_generator": {
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}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-72024",
"datePublished": "2026-08-15T05:51:49.270Z",
"dateReserved": "2026-08-09T03:40:39.900Z",
"dateUpdated": "2026-08-17T05:39:32.685Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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