[SECURITY] USB: serial: io_ti: fix div-by-zero in set_termios (CVE-2017-18360)#131
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Mifacopy wants to merge 1 commit intofacebookincubator:oculus-go-kernel-masterfrom
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[SECURITY] USB: serial: io_ti: fix div-by-zero in set_termios (CVE-2017-18360)#131Mifacopy wants to merge 1 commit intofacebookincubator:oculus-go-kernel-masterfrom
Mifacopy wants to merge 1 commit intofacebookincubator:oculus-go-kernel-masterfrom
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Fix CVE-2017-18360.
Upstream commit: 6aeb75e6adfaed16e58780309613a578fe1ee90b
In drivers/usb/serial/io_ti.c, requesting an excessively high baud rate could
result in a zero divisor and trigger a division-by-zero in the port settings
path (set_termios / change_port_settings), causing a local denial-of-service.
Cap the requested baud rate to avoid a zero divisor (and prevent firmware
crashes observed with a zero divisor).
Reference: CVE-2017-18360