A potential bug in drivers/tty/serial/jsm/jsm.ko

From	Pavel Andrianov <andrianov@ispras.ru>
Newsgroups	linux.kernel
Subject	A potential bug in drivers/tty/serial/jsm/jsm.ko
Date	2016-09-05 11:20 +0200
Message-ID	<sdYel-1Lf-1@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Hi!

There is a potential bug in drivers/tty/serial/jsm/jsm.ko.
In neo_parse_isr, line 764 a field ch->ch_flags is updated under 
spinlock protection. In neo_copy_data_from_uart_to_queue the same values 
are written to the field without any protection, as the function is 
always called without locks.
Should the same lock be used in these cases?
-- 
Pavel Andrianov
Linux Verification Center, ISPRAS
web: http://linuxtesting.org
e-mail: andrianov@ispras.ru

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A potential bug in drivers/tty/serial/jsm/jsm.ko Pavel Andrianov <andrianov@ispras.ru> - 2016-09-05 11:20 +0200

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