Re: lib/48324: ld.elf_so - tty.c memcpy overwrites tcb for tls variant 2

[Nick Hudson <nick.hudson%gmx.co.uk@localhost>]

The following reply was made to PR lib/48324; it has been noted by GNATS.

From: Nick Hudson <nick.hudson%gmx.co.uk@localhost>
To: gnats-bugs%NetBSD.org@localhost, lib-bug-people%netbsd.org@localhost, 
 gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost
Cc: 
Subject: Re: lib/48324: ld.elf_so - tty.c memcpy overwrites tcb for tls variant
 2
Date: Sat, 19 Oct 2013 11:17:29 +0100

 On 19/10/2013 00:05, nathanialsloss%yahoo.com.au@localhost wrote:
 >> Number:         48324
 >> Synopsis:       ld.elf_so - tty.c memcpy overwrites tcb for tls variant 2
 [...]
 
 >> -                   q = p - obj->tlsoffset;
 >> +                   q = p - obj->tlsoffset - obj->tlsinitsize;
 >>
 I'm not convinced this is correct.
 
 I've just committed some debug code to ld.elf_so to help understand 
 what's going on here. Can you build a -DDEBUG -DRTLD_DEBUG ld.elf_so and 
 run your test problem against it (the environment variable LD_DEBUG 
 needs to be set)
 
 Typically I create a ld.dbg_so and point the program at that so I don't 
 hose my system.
 
 Thanks,
 Nick