GHSA-64QP-9XF4-2PCH
Vulnerability from github – Published: 2024-10-21 18:30 – Updated: 2025-11-04 00:31In the Linux kernel, the following vulnerability has been resolved:
wifi: cfg80211: Set correct chandef when starting CAC
When starting CAC in a mode other than AP mode, it return a "WARNING: CPU: 0 PID: 63 at cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]" caused by the chandef.chan being null at the end of CAC.
Solution: Ensure the channel definition is set for the different modes when starting CAC to avoid getting a NULL 'chan' at the end of CAC.
Call Trace: ? show_regs.part.0+0x14/0x16 ? __warn+0x67/0xc0 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? report_bug+0xa7/0x130 ? exc_overflow+0x30/0x30 ? handle_bug+0x27/0x50 ? exc_invalid_op+0x18/0x60 ? handle_exception+0xf6/0xf6 ? exc_overflow+0x30/0x30 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? exc_overflow+0x30/0x30 ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211] ? regulatory_propagate_dfs_state.cold+0x1b/0x4c [cfg80211] ? cfg80211_propagate_cac_done_wk+0x1a/0x30 [cfg80211] ? process_one_work+0x165/0x280 ? worker_thread+0x120/0x3f0 ? kthread+0xc2/0xf0 ? process_one_work+0x280/0x280 ? kthread_complete_and_exit+0x20/0x20 ? ret_from_fork+0x19/0x24
[shorten subject, remove OCB, reorder cases to match previous list]
{
"affected": [],
"aliases": [
"CVE-2024-49937"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-21T18:15:15Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: Set correct chandef when starting CAC\n\nWhen starting CAC in a mode other than AP mode, it return a\n\"WARNING: CPU: 0 PID: 63 at cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]\"\ncaused by the chandef.chan being null at the end of CAC.\n\nSolution: Ensure the channel definition is set for the different modes\nwhen starting CAC to avoid getting a NULL \u0027chan\u0027 at the end of CAC.\n\n Call Trace:\n ? show_regs.part.0+0x14/0x16\n ? __warn+0x67/0xc0\n ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]\n ? report_bug+0xa7/0x130\n ? exc_overflow+0x30/0x30\n ? handle_bug+0x27/0x50\n ? exc_invalid_op+0x18/0x60\n ? handle_exception+0xf6/0xf6\n ? exc_overflow+0x30/0x30\n ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]\n ? exc_overflow+0x30/0x30\n ? cfg80211_chandef_dfs_usable+0x20/0xaf [cfg80211]\n ? regulatory_propagate_dfs_state.cold+0x1b/0x4c [cfg80211]\n ? cfg80211_propagate_cac_done_wk+0x1a/0x30 [cfg80211]\n ? process_one_work+0x165/0x280\n ? worker_thread+0x120/0x3f0\n ? kthread+0xc2/0xf0\n ? process_one_work+0x280/0x280\n ? kthread_complete_and_exit+0x20/0x20\n ? ret_from_fork+0x19/0x24\n\n[shorten subject, remove OCB, reorder cases to match previous list]",
"id": "GHSA-64qp-9xf4-2pch",
"modified": "2025-11-04T00:31:42Z",
"published": "2024-10-21T18:30:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49937"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/04053e55dd50741cf6c59b9bbaa4238218c05c70"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/20361712880396e44ce80aaeec2d93d182035651"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/95f32191e50b75e0f75fae1bb925cdf51d8df0a3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c628026563f4ea9e0413dd4b69429e4a1db240b1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f4dbfda159e43d49b43003cc3c2914751939035f"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.