From: riel@redhat.com
To: linux-kernel@vger.kernel.org
Cc: akpm@linux-foundation.org, mingo@kernel.org, will.deacon@arm.com,
danielmicay@gmail.com, benh@kernel.crashing.org,
hughd@google.com
Subject: [PATCH 0/3] properly account for stack randomization and guard gap
Date: Thu, 22 Jun 2017 16:00:30 -0400 [thread overview]
Message-ID: <20170622200033.25714-1-riel@redhat.com> (raw)
When RLIMIT_STACK is larger than the minimum gap enforced by
mmap_base(), it is possible for the kernel to place the mmap
area where the stack wants to grow, resulting in the stack
not being able to use the space that should have been allocated
to it through RLIMIT_STACK.
This series ensures that x86, ARM64, and PPC have at least
RLIMIT_STACK + stack randomization + the stack guard gap
space available for the stack.
s390 seems to be ok. I have not checked other architectures.
next reply other threads:[~2017-06-22 20:01 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-22 20:00 riel [this message]
2017-06-22 20:00 ` [PATCH 1/3] x86/mmap: properly account for stack randomization in mmap_base riel
2017-06-22 20:00 ` [PATCH 2/3] arm64/mmap: " riel
2017-06-22 20:00 ` [PATCH 3/3] powerpc,mmap: " riel
2017-06-23 8:35 ` [PATCH 0/3] properly account for stack randomization and guard gap Ingo Molnar
2017-06-23 15:13 ` Rik van Riel
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