wifi: cfg80211: cancel sched scan results work on unregister
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: cancel sched scan results work on unregister cfg80211_sched_scan_results() can queue rdev->sched_scan_res_wk from a driver result notification while a scheduled scan request is present. The work callback recovers the containing cfg80211_registered_device and then locks the wiphy and walks the scheduled-scan request list. wiphy_unregister() already makes the wiphy unreachable and drains rdev work items before cfg80211_dev_free() can release the object, but it does not drain sched_scan_res_wk. A queued or running result work item can therefore cross the unregister/free boundary and access freed rdev state. The buggy scenario involves two paths, with each column showing the order within that path: scheduled-scan result path: unregister/free path: 1. cfg80211_sched_scan_results() 1. interface teardown stops and queues rdev->sched_scan_res_wk. removes the scheduled scan request. 2. cfg80211_wq starts the work 2. wiphy_unregister() drains other item and recovers rdev. rdev work items. 3. The worker locks rdev->wiphy 3. cfg80211_dev_free() destroys and and walks rdev state. frees rdev. Cancel sched_scan_res_wk in wiphy_unregister() alongside the other rdev work items. cancel_work_sync() removes a pending result notification and waits for an already running callback, so cfg80211_dev_free() cannot free rdev while this work item is still active. Validation reproduced this kernel report: BUG: KASAN: use-
CVE-2026-68414
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-68414
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "807f8a8c300435d5483e8d78df9dcdbc27333166",
"lessThan": "c0fa1f3a4b021a5c6373169fd6c9bb4261d676a0",
"versionType": "git"
},
{
"status": "affected",
"version": "807f8a8c300435d5483e8d78df9dcdbc27333166",
"lessThan": "b51b42b974461fd0f688baad85f10e2b8ab215c5",
"versionType": "git"
},
{
"status": "affected",
"version": "807f8a8c300435d5483e8d78df9dcdbc27333166",
"lessThan": "3368457b4871ae8f0f88d19c9a3e6270e850ede6",
"versionType": "git"
},
{
"status": "affected",
"version": "807f8a8c300435d5483e8d78df9dcdbc27333166",
"lessThan": "308ffdf575560d7e7b8b21f1e3ca6276630f73bf",
"versionType": "git"
},
{
"status": "affected",
"version": "807f8a8c300435d5483e8d78df9dcdbc27333166",
"lessThan": "9293574ac208d18c11073538851fb69355beb3b5",
"versionType": "git"
},
{
"status": "affected",
"version": "807f8a8c300435d5483e8d78df9dcdbc27333166",
"lessThan": "b119c70b24776c8ab2a2c0515397b3b0ad4e66cd",
"versionType": "git"
},
{
"status": "affected",
"version": "807f8a8c300435d5483e8d78df9dcdbc27333166",
"lessThan": "edf0730be33696a1bd142792830d392129e495cc",
"versionType": "git"
}
],
"programFiles": [
"net/wireless/core.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.216",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.183",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.148",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.101",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.42",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.6",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/wireless/core.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-68414
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #41719 · Revision 1
- Added to Heist Feed
- Publisher date