CVE-2026-43020
Published: May 1, 2026
Modified: May 11, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate LTK enc_size on load Load Long Term Keys stores the user-provided enc_size and later uses it to size fixed-size stack operations when replying to LE LTK requests. An enc_size larger than the 16-byte key buffer can therefore overflow the reply stack buffer. Reject oversized enc_size values while validating the management LTK record so invalid keys never reach the stored key state.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 346af67b8d116f01ef696fd47959a55deb2db8b6 - < 0f37d1e65c6d71ad94ccfb5c602163c525db789daffected 346af67b8d116f01ef696fd47959a55deb2db8b6 - < 257cdb960d8ff6d60bb6461b03c814b6cf0c9e64affected 346af67b8d116f01ef696fd47959a55deb2db8b6 - < c34577f517b556fb6ca173d45bf7e766ae2564ceaffected 346af67b8d116f01ef696fd47959a55deb2db8b6 - < f71695e81f4cb428f3c7e2138eae88199005b52caffected 346af67b8d116f01ef696fd47959a55deb2db8b6 - < 82f342b3b006ca1d65f4890c05f2ec32fcb808b6+3 more versions |
Linux | Linux | affected 3.4unaffected 0 - < 3.4unaffected 5.10.253 - <= 5.10.*unaffected 5.15.203 - <= 5.15.*unaffected 6.1.168 - <= 6.1.*+5 more versions |
References
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