AZL-106050
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-106050.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-106050
- Upstream
- Published
- 2026-10-06T09:18:19Z
- Modified
- 2026-10-07T14:16:52Z
- Summary
- CVE-2026-98292 affecting package kernel 6.6.157.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: btmtksdio, btmtkuart: validate WMT event length before struct access
btmtksdio.c and btmtkuart.c cast a received WMT event straight to struct btmtk_hci_wmt_evt and read its op/flag fields without checking the event is long enough to contain them, unlike btmtk.c. The FUNC_CTRL case then further casts to struct btmtk_hci_wmt_evt_funcc and reads its 2-byte status field, again without a length check. Firmware that sends a short or malformed WMT event makes both drivers read past the end of the received SKB.
Mirror btmtk.c: validate the base WMT header with skb_pull_data() before touching any of its fields, and when a FUNC_CTRL event turns out to be the short, header-only form (a plain enable/disable ack with no status word), decode the result from the header's own flag byte instead (0 = success, otherwise failure).
Verified setup on MT7920, MT7921, MT7922 and MT7925: no regression.
- References