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| author | Kees Cook <[email protected]> | 2023-09-22 17:51:02 +0000 |
|---|---|---|
| committer | Kees Cook <[email protected]> | 2023-10-09 05:46:04 +0000 |
| commit | 51a71ab21f61ceb104aad2c9d29cd7e445adf1c5 (patch) | |
| tree | 60840d0882abb68b2827d8b04adfdf3e1ca6532d /scripts/gcc-plugins/randomize_layout_plugin.c | |
| parent | hwmon: Annotate struct gsc_hwmon_platform_data with __counted_by (diff) | |
| download | kernel-51a71ab21f61ceb104aad2c9d29cd7e445adf1c5.tar.gz kernel-51a71ab21f61ceb104aad2c9d29cd7e445adf1c5.zip | |
virt: acrn: Annotate struct vm_memory_region_batch with __counted_by
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
(for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
As found with Coccinelle[1], add __counted_by for struct vm_memory_region_batch.
Additionally, since the element count member must be set before accessing
the annotated flexible array member, move its initialization earlier.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Fei Li <[email protected]>
Reviewed-by: "Gustavo A. R. Silva" <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Kees Cook <[email protected]>
Diffstat (limited to 'scripts/gcc-plugins/randomize_layout_plugin.c')
0 files changed, 0 insertions, 0 deletions