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Bluetooth: L2CAP: Fix accepting connection request for invalid SPSM
The Bluetooth spec states that the valid range for SPSM is from
0x0001-0x00ff so it is invalid to accept values outside of this range:
BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 3, Part A
page 1059:
Table 4.15: L2CAP_LE_CREDIT_BASED_CONNECTION_REQ SPSM ranges
CVE: CVE-2022-42896
CC: [email protected]
Reported-by: Tamás Koczka <[email protected]>
Signed-off-by: Luiz Augusto von Dentz <[email protected]>
Reviewed-by: Tedd Ho-Jeong An <[email protected]>
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