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author | Gustavo A. R. Silva <gustavoars@kernel.org> | 2023-10-09 15:30:17 -0600 |
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committer | Bjorn Andersson <andersson@kernel.org> | 2023-10-16 11:45:17 -0700 |
commit | ba21d6367cc2cca8f25fff3bc94b1b8df55fc261 (patch) | |
tree | 3e0e66fbb0b7052cb0f808281c5857cf15f331d9 /drivers/firmware/Kconfig | |
parent | f86955f2b1ff9fbc7ae4f6595112b2f896885366 (diff) |
soc: qcom: apr: Add __counted_by for struct apr_rx_buf 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.
Signed-off-by: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Reviewed-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/ZSRw6RNi3Crhd32H@work
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Diffstat (limited to 'drivers/firmware/Kconfig')
0 files changed, 0 insertions, 0 deletions