Re: UBSAN whinge in ihci-hub.c

[Greg Kroah-Hartman]

On Tue, May 17, 2016 at 05:52:40PM -0400, Valdis Kletnieks wrote:
> So, not content in the amount of breakage I generate already, I
> compiled with UBSAN enabled...
> 
> The immediately relevant part:
> 
> [    2.418576] ================================================================================
> [    2.418579] UBSAN: Undefined behaviour in drivers/usb/host/ehci-hub.c:877:47
> [    2.418582] index -1 is out of range for type 'u32 [1]'

<snip>

It's a known bug in ubsan, please see the linux-usb archives for the
details :(