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  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Sat, 19 Jul 2014 18:31:26 +0200
From:	David Herrmann <>
To:	Hugh Dickins <>
Cc:	linux-kernel <>,
	Michael Kerrisk <>,
	Ryan Lortie <>,
	Linus Torvalds <>,
	Andrew Morton <>,
	linux-mm <>,
	linux-fsdevel <>,
	Linux API <>,
	Greg Kroah-Hartman <>,
	John Stultz <>,
	Lennart Poettering <>,
	Daniel Mack <>, Kay Sievers <>,
	Tony Battersby <>,
	Andy Lutomirski <>
Subject: Re: [PATCH v3 4/7] selftests: add memfd_create() + sealing tests


On Wed, Jul 16, 2014 at 12:07 PM, Hugh Dickins <> wrote:
> On Fri, 13 Jun 2014, David Herrmann wrote:
>> Some basic tests to verify sealing on memfds works as expected and
>> guarantees the advertised semantics.
>> Signed-off-by: David Herrmann <>
> Thanks for whatever the fix was, I didn't hit any problem running
> this version repeatedly, on 64-bit and on 32-bit.

glibc does pid-caching so getpid() can be skipped once called. fork()
and clone() have to update it, though. Therefore, you shouldn't mix
fork() and clone() in the same process. I replaced my fork() call with
a simple clone() and the bug was gone.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists