Messages in this thread | | | Date | Wed, 9 Dec 2020 11:52:45 +0100 | From | Greg KH <> | Subject | Re: [PATCH] USB: serial: option: add interface-number sanity check to flag handling |
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On Wed, Dec 09, 2020 at 11:42:21AM +0100, Johan Hovold wrote: > Add an interface-number sanity check before testing the device flags to > avoid relying on undefined behaviour when left shifting in case a device > uses an interface number greater than or equal to BITS_PER_LONG (i.e. 64 > or 32). > > Reported-by: syzbot+8881b478dad0a7971f79@syzkaller.appspotmail.com > Fixes: c3a65808f04a ("USB: serial: option: reimplement interface masking") > Cc: stable@vger.kernel.org > Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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