Pengpeng Hou
52beeed5e5
USB: serial: mxuport: validate firmware header size
...
mxuport_probe() reads version bytes at fixed offsets after
request_firmware() succeeds. Firmware loading success does not prove that
the blob reaches the highest version offset.
Reject short firmware images before reading the version bytes. This is
source-level parser hardening; no affected device or crash was observed.
Reviewed-by: Andrew Lunn <andrew@lunn.ch >
Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn >
Fixes: ee467a1f20 ("USB: serial: add Moxa UPORT 12XX/14XX/16XX driver")
Signed-off-by: Johan Hovold <johan@kernel.org >
2026-07-20 16:24:04 +02:00
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