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git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/commit - drivers/usb/serial/digi_acceleport.c
USB: serial: digi_acceleport: fix OOB data sanity check
Make sure to check for short transfers to avoid underflow in a loop
condition when parsing the receive buffer.
Also fix an off-by-one error in the incomplete sanity check which could
lead to invalid data being parsed.
Fixes: 8c209e6782ca ("USB: make actual_length in struct urb field u32")
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org> # v2.6.30
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>