mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-07-14 21:43:02 +02:00
commita251963f76upstream. 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:c3a65808f0("USB: serial: option: reimplement interface masking") Cc: stable@vger.kernel.org Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>