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author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2019-03-04 12:33:28 +0100 |
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committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2019-03-06 09:34:03 +0100 |
commit | cd479eccd2e057116d504852814402a1e68ead80 (patch) | |
tree | 4907bc92b607d86fe8b86a21657d85d7186b3f7d /drivers/s390 | |
parent | 3717f613f48df0222311f974cf8a06c8a6c97bae (diff) |
s390: limit brk randomization to 32MB
For a 64-bit process the randomization of the program break is quite
large with 1GB. That is as big as the randomization of the anonymous
mapping base, for a test case started with '/lib/ld64.so.1 <exec>'
it can happen that the heap is placed after the stack. To avoid
this limit the program break randomization to 32MB for 64-bit and
keep 8MB for 31-bit.
Reported-by: Stefan Liebler <stli@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390')
0 files changed, 0 insertions, 0 deletions