Bug#241903: grub: Should ignore PPP & friends' traffic over the serial line

[Jan Minar]

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Package: grub
Version: 0.91-2
Severity: normal

Hi!

I have pppd connected to the serial terminal line on the client side, and have
to switch it off and fire up minicom by hand.  When minicom is started, I find
the grub in the menu or at the commandline (I presume this is because of the
random bash pppd sends).

I fear some valid PPP data might actually command grub to do something silly,
like wiping out a MBR or the like.

Maybe there is a similar issue with SLIP and/or other serial line protocols?

Grub should recognize the other end is a pppd and should ignore any data such
pppd sends.

Cheers,
Jan.

-- System Information
Debian Release: 3.0
Kernel Version: Linux kontryhel 2.4.25-jan #2 SMP Fri Feb 20 15:23:11 CET 2004 i686 unknown

Versions of the packages grub depends on:
ii  libc6          2.2.5-11.5     GNU C Library: Shared libraries and Timezone
ii  libncurses5    5.2.20020112a- Shared libraries for terminal handling

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