From: Victoria Dye <redacted>

Avoid size_t overflow when reporting the available disk space in
'get_disk_info' by casting the block size and available block count to
'uint64_t' before multiplying them. Without this change, 'st_mult' would
(correctly) report size_t overflow on 32-bit systems at or exceeding 2^32
bytes of available space.

Signed-off-by: Victoria Dye <redacted>
---
 builtin/bugreport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/builtin/bugreport.c b/builtin/bugreport.c
index 35b1fc48bf1..720889a37ad 100644
--- a/builtin/bugreport.c
+++ b/builtin/bugreport.c

@@ -258,7 +258,7 @@ static int get_disk_info(struct strbuf *out)
 	}
 
 	strbuf_addf(out, "Available space on '%s': ", buf.buf);
-	strbuf_humanise_bytes(out, st_mult(stat.f_bsize, stat.f_bavail));
+	strbuf_humanise_bytes(out, (uint64_t)stat.f_bsize * (uint64_t)stat.f_bavail);
 	strbuf_addf(out, " (mount flags 0x%lx)\n", stat.f_flag);
 	strbuf_release(&buf);
 #endif

-- 
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