Searched hist:"75 f5f60b" (Results 1 – 2 of 2) sorted by relevance
/openbmc/linux/fs/btrfs/ |
H A D | delayed-inode.h | 75f5f60b Mon Oct 09 15:44:54 CDT 2023 Gustavo A. R. Silva <gustavoars@kernel.org> btrfs: add __counted_by for struct btrfs_delayed_item and use struct_size()
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 via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions).
While there, use struct_size() helper, instead of the open-coded version, to calculate the size for the allocation of the whole flexible structure, including of course, the flexible-array member.
This code was found with the help of Coccinelle, and audited and fixed manually.
Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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H A D | delayed-inode.c | 75f5f60b Mon Oct 09 15:44:54 CDT 2023 Gustavo A. R. Silva <gustavoars@kernel.org> btrfs: add __counted_by for struct btrfs_delayed_item and use struct_size()
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 via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions).
While there, use struct_size() helper, instead of the open-coded version, to calculate the size for the allocation of the whole flexible structure, including of course, the flexible-array member.
This code was found with the help of Coccinelle, and audited and fixed manually.
Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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