USB: iowarrior: fix oops with malicious USB descriptors

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[ Upstream commit 4ec0ef3a82 ]

The iowarrior driver expects at least one valid endpoint.  If given
malicious descriptors that specify 0 for the number of endpoints,
it will crash in the probe function.  Ensure there is at least
one endpoint on the interface before using it.

The full report of this issue can be found here:
http://seclists.org/bugtraq/2016/Mar/87

Reported-by: Ralf Spenneberg <ralf@spenneberg.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

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Josh Boyer 2016-03-14 10:42:38 -04:00 • committed by Sasha Levin

parent 3496f12f95

commit 7e28ea3b89

1 changed files with 6 additions and 0 deletions

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drivers/usb/misc/iowarrior.c

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