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| author | Dmitry Vyukov <dvyukov@google.com> | 2020-04-18 14:43:29 +0200 |
|---|---|---|
| committer | Dmitry Vyukov <dvyukov@google.com> | 2020-04-18 14:43:29 +0200 |
| commit | 365fba2440cee3aed74c774867a1f43e3e2f7aac (patch) | |
| tree | d148c5d3f2e417b31d3dca1ae0e5d9c77da847b9 /pkg/ast | |
| parent | 6fe0f49646813924a072d786e080ab7bf4f9ab65 (diff) | |
executor: surround the data mapping with PROT_NONE pages
Surround the main data mapping with PROT_NONE pages to make virtual address layout more consistent
across different configurations (static/non-static build) and C repros.
One observed case before: executor had a mapping above the data mapping (output region),
while C repros did not have that mapping above, as the result in one case VMA had next link,
while in the other it didn't and it caused a bug to not reproduce with the C repro.
The bug that reproduces only with the mapping above:
https://lkml.org/lkml/2020/4/17/819
Diffstat (limited to 'pkg/ast')
0 files changed, 0 insertions, 0 deletions