USB: serial: mos7840: fix another NULL-deref at open

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commit 5182c2cf2a upstream.

Fix another NULL-pointer dereference at open should a malicious device
lack an interrupt-in endpoint.

Note that the driver has a broken check for an interrupt-in endpoint
which means that an interrupt URB has never even been submitted.

Fixes: 3f5429746d ("USB: Moschip 7840 USB-Serial Driver")
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

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Johan Hovold 2017-02-09 12:11:41 +01:00 • committed by Ben Hutchings

parent a5a095239b

commit 3d9ff65abd

1 changed files with 3 additions and 1 deletions

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drivers/usb/serial/mos7840.c

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