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USB: serial: mos7840: fix status-register error handling
authorJohan Hovold <johan@kernel.org>
Wed, 4 Jul 2018 15:02:17 +0000 (17:02 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 17 Jul 2018 09:37:52 +0000 (11:37 +0200)
commit7675c7b78e34ece3829e85308f5e37f2fb62c11a
tree0650b53b10c3678d0abb4e11c65edecded6b2ee6tree | snapshot
parent0fdef3142f99430b94f5d394ca2b181d20d87e77commit | diff
USB: serial: mos7840: fix status-register error handling

commit 794744abfffef8b1f3c0c8a4896177d6d13d653d upstream.

Add missing transfer-length sanity check to the status-register
completion handler to avoid leaking bits of uninitialised slab data to
user space.

Fixes: 3f5429746d91 ("USB: Moschip 7840 USB-Serial Driver")
Cc: stable <stable@vger.kernel.org> # 2.6.19
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/serial/mos7840.c diff | blob | history
Domain: System / Kernel;