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| author | Kees Cook <keescook@chromium.org> | 2024-02-17 09:25:44 +0300 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2024-04-24 22:20:35 +0300 |
| commit | 2a5eb9995528441447d33838727f6ec1caf08139 (patch) | |
| tree | 1d19fdfcfa64b5c240fcb35a24dab852c9490c80 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | a9c3475dd67bd828d999e95d0ba985e7ac4cbbb7 (diff) | |
| download | linux-2a5eb9995528441447d33838727f6ec1caf08139.tar.xz | |
binfmt_elf: Leave a gap between .bss and brk
Currently the brk starts its randomization immediately after .bss,
which means there is a chance that when the random offset is 0, linear
overflows from .bss can reach into the brk area. Leave at least a single
page gap between .bss and brk (when it has not already been explicitly
relocated into the mmap range).
Reported-by: <y0un9n132@gmail.com>
Closes: https://lore.kernel.org/linux-hardening/CA+2EKTVLvc8hDZc+2Yhwmus=dzOUG5E4gV7ayCbu0MPJTZzWkw@mail.gmail.com/
Link: https://lore.kernel.org/r/20240217062545.1631668-2-keescook@chromium.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions