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USB: serial: io_edgeport: fix slab-out-of-bounds read in edge_interrupt_callback
authorQiujun Huang <hqjagain@gmail.com>
Wed, 25 Mar 2020 07:52:37 +0000 (15:52 +0800)
committerJohan Hovold <johan@kernel.org>
Thu, 26 Mar 2020 09:22:15 +0000 (10:22 +0100)
commit57aa9f294b09463492f604feaa5cc719beaace32
tree4cbf781beae88192a47ac1501d54c93879773a42tree | snapshot
parentdfee7e2f478346b12ea651d5c28b069f6a4af563commit | diff
USB: serial: io_edgeport: fix slab-out-of-bounds read in edge_interrupt_callback

Fix slab-out-of-bounds read in the interrupt-URB completion handler.

The boundary condition should be (length - 1) as we access
data[position + 1].

Reported-and-tested-by: syzbot+37ba33391ad5f3935bbd@syzkaller.appspotmail.com
Signed-off-by: Qiujun Huang <hqjagain@gmail.com>
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
drivers/usb/serial/io_edgeport.c diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)