gdb: Fix CVE-2023-39128

Note: The Fix needs to be pushed in gdb rather than bintuils-gdb as we are
disabling gdb in binutils configure.

Upstream-Status: Backport from [https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=033bc52bb6190393c8eed80925fa78cc35b40c6d

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CVE: CVE-2023-39128
Signed-off-by: Siddharth Doshi <sdoshi@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>