linux-kernel - PROBLEM: getpid() returning same value as getppid()

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <4BFD33F0.1060908@univ-mlv.fr>
Date:	Wed, 26 May 2010 16:45:04 +0200
From:	Sébastien Paumier 
	<sebastien.paumier@...v-mlv.fr>
To:	linux-kernel@...r.kernel.org
Subject: PROBLEM: getpid() returning same value as getppid()

Hi,
here is a bug that occurs on my kernel 2.6.31-21, maybe with older ones. 
  If a C program contains a function with the constructor attribute that 
calls getpid(), then, a call to syscall(SYS_fork) produces a son that 
obtains the same value calling getpid() or getppid().

Best regards,
Sébastien Paumier

View attachment "test.c" of type "text/x-csrc" (511 bytes)