Add the __counted_by() compiler attribute to the flexible array member buf to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE.
No functional changes intended. Signed-off-by: Thorsten Blum <[email protected]> --- Changes in v2: - struct_size() changes should be a separate patch as suggested by Ingo - Link to v1: https://lore.kernel.org/r/[email protected]/ --- arch/x86/events/intel/bts.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/events/intel/bts.c b/arch/x86/events/intel/bts.c index 8f78b0c900ef..c7be60c0b94f 100644 --- a/arch/x86/events/intel/bts.c +++ b/arch/x86/events/intel/bts.c @@ -58,7 +58,7 @@ struct bts_buffer { local_t head; unsigned long end; void **data_pages; - struct bts_phys buf[]; + struct bts_phys buf[] __counted_by(nr_bufs); }; static struct pmu bts_pmu; -- 2.48.1
