CVE-2026-99060
UnknownSummary
In the Linux kernel, the mt76 Wi-Fi driver for mt7603 publishes a driver-private global station WCID without first calling mt76_wcid_init(). The first frame injected through a monitor interface reaches __skb_queue_tail() with an uninitialized sk_buff_head and dereferences a NULL prev pointer, causing an oops.
Risk Assessment
Injecting a frame through a monitor interface can trigger a kernel oops and reset the Wi-Fi device, causing denial of service. This requires the ability to inject frames (e.g. monitor mode privileges).
Recommendation
Update the Linux kernel to a version containing the fix that initializes the WCID before publishing it.
Other vulnerabilities in Linux kernel
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- CVE-2026-58829High
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- CVE-2026-58828High
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- CVE-2026-58827High
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- CVE-2026-58826High
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- CVE-2026-99242Unknown
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- CVE-2026-99241Unknown
In the Linux kernel, a missing lock in ntfs_filemap_page_mkwrite() was fixed; it called iomap_page_mkwrite() without holding mapping->invalidate_lock. A concurrent truncate or fallocate could be invalidating pagecache and rewriting the runlist while the write fault mapped blocks and dirtied the folio.
- CVE-2026-99240Unknown
In the Linux kernel, the DAMON subsystem (mm/damon/core) has a division-by-zero bug when a DAMOS quota goal has a target_value of zero. The fix moves handling of this corner case to the core layer by adding validation in damos_commit_quota_goal(), which now returns an error for zero target values.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS