USB: serial: ssu100: fix baud rate overflow

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The requested baud rate is incorrectly truncated to 16 bits so that
line speeds above 65535 bps cannot be set.

Use 32 bits for the rate and remainder while rejecting rates outside of
[50,460800] to avoid having the divisor or remainder overflow.

This issue was flagged by an LLM.

Fixes: 52af954599 ("USB: add USB serial ssu100 driver")
Cc: stable@vger.kernel.org	# 2.6.36
Cc: Bill Pemberton <wfp5p@virginia.edu>
Assisted-by: LLM
Signed-off-by: Johan Hovold <johan@kernel.org>

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This commit is contained in:

Johan Hovold 2026-09-15 14:40:11 +02:00

parent d84e27d877

commit afc235a217

1 changed files with 16 additions and 2 deletions

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18

drivers/usb/serial/ssu100.c

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