GHSA-PVVM-R88X-762C
Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-17 06:33In the Linux kernel, the following vulnerability has been resolved:
wifi: rt2x00: avoid full teardown before work setup in probe
rt2x00lib_probe_dev() uses the full rt2x00lib_remove_dev() teardown for all probe failures. However, drv_data allocation and workqueue allocation can fail before intf_work, autowakeup_work and sleep_work have been initialized.
Do not enter the full remove path until the probe has reached the point where those work items are set up. Return directly for drv_data allocation failure, and use a small early cleanup path for workqueue allocation failure.
This issue was found by our static analysis tool and then confirmed by manual review of rt2x00lib_probe_dev() and rt2x00lib_remove_dev(). The early probe exits should not call a common teardown path that assumes the later work setup has already completed.
A QEMU PoC forced alloc_ordered_workqueue() to fail before the work initializers are reached. The resulting fail path entered rt2x00lib_remove_dev(), and DEBUG_OBJECTS reported invalid work drains with rt2x00lib_probe_dev() and rt2x00lib_remove_dev() in the stack.
{
"affected": [],
"aliases": [
"CVE-2026-72005"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-15T06:20:59Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rt2x00: avoid full teardown before work setup in probe\n\nrt2x00lib_probe_dev() uses the full rt2x00lib_remove_dev() teardown for\nall probe failures. However, drv_data allocation and workqueue allocation\ncan fail before intf_work, autowakeup_work and sleep_work have been\ninitialized.\n\nDo not enter the full remove path until the probe has reached the point\nwhere those work items are set up. Return directly for drv_data allocation\nfailure, and use a small early cleanup path for workqueue allocation\nfailure.\n\nThis issue was found by our static analysis tool and then confirmed by\nmanual review of rt2x00lib_probe_dev() and rt2x00lib_remove_dev(). The\nearly probe exits should not call a common teardown path that assumes the\nlater work setup has already completed.\n\nA QEMU PoC forced alloc_ordered_workqueue() to fail before the work\ninitializers are reached. The resulting fail path entered\nrt2x00lib_remove_dev(), and DEBUG_OBJECTS reported invalid work drains with\nrt2x00lib_probe_dev() and rt2x00lib_remove_dev() in the stack.",
"id": "GHSA-pvvm-r88x-762c",
"modified": "2026-08-17T06:33:04Z",
"published": "2026-08-15T06:32:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72005"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3c0427d719bddb33caf18ff4ffb77cb47de7eb00"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/536fb3d739d75a03cb318c0c6fe799425cfea501"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/56994852d704535ea354a4627ca667b1b4fa0deb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/59afe6148927395cf86f9429900e029a48b1d42b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/66bd9b1a72de7c2f5141b02d796048aafaed8a49"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/816559409e340acaa5c9d868291dab30d8c80263"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8b58d1f1356df6a7d2de3f55bb665b18b04ffda0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/eb7474d0253bb2de4793e1d3ce833e8564bbe732"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.