cdrom: fix improper type cast, which can leat to information leak.

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commit e4f3aa2e1e upstream.

There is another cast from unsigned long to int which causes
a bounds check to fail with specially crafted input. The value is
then used as an index in the slot array in cdrom_slot_status().

This issue is similar to CVE-2018-16658 and CVE-2018-10940.

Signed-off-by: Young_X <YangX92@hotmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Young_X 2018-10-03 12:54:29 +00:00 • committed by Greg Kroah-Hartman

parent f9de7e6135

commit c8099dbf49

1 changed files with 1 additions and 1 deletions

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drivers/cdrom/cdrom.c

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