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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 09:39:26 +0000 (11:39 +0200)
commit82b9cb4d3f062aa80f15a4f2a2f567b93e2d0739
tree53e97222b893cd0de74eaa59b73c9d1e9d53dbdftree | snapshot (tar.gz zip)
parent90f2a76ccd37cce2530df49335bcea6cd0e23797commit | 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 | blame | history