wifi: mt76: mt7603: initialize global station WCID
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7603: initialize global station WCID mt7603 uses a driver-private global station WCID for frames that have neither a station nor a vif, including frames injected through a monitor interface. Unlike the core global WCID initialized by mt76_register_device(), this WCID is published without ever being passed to mt76_wcid_init(). Since commit 0335c034e726 ("wifi: mt76: fix race condition related to checking tx queue fill status"), mt76_tx() queues every such frame on the WCID's tx_pending or tx_offchannel queue and links its tx_list. The first injected frame therefore reaches __skb_queue_tail() with an uninitialized sk_buff_head and dereferences a NULL prev pointer. Initialize the WCID before publishing it. The fix was tested on an MT7603 PCIe device. Three wildcard probe requests were injected through a monitor interface. The hardware queue head and tail advanced from 0 to 3 and a second radio captured the third request over the air. No oops or reset occurred. After restoring AP mode, a 150 MB transfer also completed without a reset.
CVE-2026-99060
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-2026-99060
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": "d2defcddfe90b3be0cfccc2482495ab1fb759586",
"lessThan": "99b8bd6323e6fc69615af828522878b7acb77bff",
"versionType": "git"
},
{
"status": "affected",
"version": "0335c034e7265d36d956e806f33202c94a8a9860",
"lessThan": "e454ec553996f21085657c96c8a605e2d89a81a6",
"versionType": "git"
},
{
"status": "affected",
"version": "0335c034e7265d36d956e806f33202c94a8a9860",
"lessThan": "dd117d17e8aa2e89f857fb708e5b770709fb81cb",
"versionType": "git"
},
{
"status": "affected",
"version": "0335c034e7265d36d956e806f33202c94a8a9860",
"lessThan": "19d6fa087dcf242223645828b8282d4040bad168",
"versionType": "git"
},
{
"status": "affected",
"version": "0335c034e7265d36d956e806f33202c94a8a9860",
"lessThan": "456de496b53ae73e6e3020fec815dbdc88aa7c07",
"versionType": "git"
},
{
"status": "affected",
"version": "6.6.48",
"lessThan": "6.6.160",
"versionType": "semver"
}
],
"programFiles": [
"drivers/net/wireless/mediatek/mt76/mt7603/init.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.7"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.7",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.113",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.11",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/wireless/mediatek/mt76/mt7603/init.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-99060
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #52884 · Revision 1
- Added to Heist Feed
- Publisher date