wifi: mt76: mt7603: initialize global station WCID
Summary
| CVE | CVE-2026-99060 |
|---|
| State | PUBLISHED |
|---|
| Assigner | Linux |
|---|
| Source Priority | CVE Program / NVD first with legacy fallback |
|---|
| Published | 2026-10-23 13:17:29 UTC |
|---|
| Updated | 2026-10-23 13:17:29 UTC |
|---|
| Description | 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. |
|---|
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|
| CNA |
Linux |
Linux |
affected d2defcddfe90b3be0cfccc2482495ab1fb759586 99b8bd6323e6fc69615af828522878b7acb77bff git |
Not specified |
| CNA |
Linux |
Linux |
affected 0335c034e7265d36d956e806f33202c94a8a9860 e454ec553996f21085657c96c8a605e2d89a81a6 git |
Not specified |
| CNA |
Linux |
Linux |
affected 0335c034e7265d36d956e806f33202c94a8a9860 dd117d17e8aa2e89f857fb708e5b770709fb81cb git |
Not specified |
| CNA |
Linux |
Linux |
affected 0335c034e7265d36d956e806f33202c94a8a9860 19d6fa087dcf242223645828b8282d4040bad168 git |
Not specified |
| CNA |
Linux |
Linux |
affected 0335c034e7265d36d956e806f33202c94a8a9860 456de496b53ae73e6e3020fec815dbdc88aa7c07 git |
Not specified |
| CNA |
Linux |
Linux |
affected 6.6.48 6.6.160 semver |
Not specified |
| CNA |
Linux |
Linux |
affected 6.7 |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.7 semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.6.160 6.6.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.12.113 6.12.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.18.57 6.18.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 7.2.11 7.2.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 7.3 * original_commit_for_fix |
Not specified |
References
| Reference | Source | Link | Tags |
|---|
| git.kernel.org/stable/c/19d6fa087dcf242223645828b8282d4040bad168 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/dd117d17e8aa2e89f857fb708e5b770709fb81cb |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/99b8bd6323e6fc69615af828522878b7acb77bff |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/e454ec553996f21085657c96c8a605e2d89a81a6 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/456de496b53ae73e6e3020fec815dbdc88aa7c07 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| CVE Program record |
CVE.ORG |
www.cve.org |
canonical |
| NVD vulnerability detail |
NVD |
nvd.nist.gov |
canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.