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Limit the hexencode and bubblebabble results by RB_LEN_MAX #157

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Merged
hsbt merged 1 commit into from
Oct 12, 2026
Merged

Limit the hexencode and bubblebabble results by RB_LEN_MAX #157

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6 changes: 5 additions & 1 deletion ext/digest/bubblebabble/bubblebabble.c
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,10 @@
#include <ruby/ruby.h>
#include "../digest.h"

#ifndef HAVE_RB_LEN_T
# define RB_LEN_MAX LONG_MAX
#endif

static ID id_digest;

static VALUE
Expand All @@ -36,7 +40,7 @@ bubblebabble_str_new(VALUE str_digest)
digest = RSTRING_PTR(str_digest);
digest_len = RSTRING_LEN(str_digest);

if ((LONG_MAX - 2) / 3 < (digest_len | 1)) {
if ((RB_LEN_MAX - 2) / 3 < (digest_len | 1)) {
rb_raise(rb_eRuntimeError, "digest string too long");
}

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3 changes: 2 additions & 1 deletion ext/digest/digest.c
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@
#include "digest.h"

#ifndef HAVE_RB_LEN_T
# define RB_LEN_MAX LONG_MAX
# define LEN2NUM LONG2NUM
#endif

Expand Down Expand Up @@ -116,7 +117,7 @@ hexencode_str_new(VALUE str_digest)
digest = RSTRING_PTR(str_digest);
digest_len = RSTRING_LEN(str_digest);

if (LONG_MAX / 2 < digest_len) {
if (RB_LEN_MAX / 2 < digest_len) {
rb_raise(rb_eRuntimeError, "digest string too long");
}

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