tomoaki/hakmem
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix critical type safety bug: enforce hak_base_ptr_t in tiny_alloc_fast_push

Browse Source 
Root cause: Functions tiny_alloc_fast_push() and front_gate_push_tls() accepted
void* instead of hak_base_ptr_t, allowing implicit conversion of USER pointers
to BASE pointers. This caused memory corruption in TLS SLL operations.

Changes:
- core/tiny_alloc_fast.inc.h:879 - Change parameter type to hak_base_ptr_t
- core/tiny_alloc_fast_push.c:17 - Change parameter type to hak_base_ptr_t
- core/tiny_free_fast.inc.h:46 - Update extern declaration
- core/box/front_gate_box.h:15 - Change parameter type to hak_base_ptr_t
- core/box/front_gate_box.c:68 - Change parameter type to hak_base_ptr_t
- core/box/tls_sll_box.h - Add misaligned next pointer guard and enhanced logging

Result: Zero misaligned next pointer detections in tests. Corruption eliminated.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Moe Charm (CI)
2025-12-04 04:58:22 +09:00
parent f9460752ea
commit abb7512f1e
6 changed files with 42 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
core/tiny_free_fast.inc.h
View File

@ -43,7 +43,7 @@ extern __thread TinyTLSSLL g_tls_sll[TINY_NUM_CLASSES];
extern __thread TinyTLSList g_tls_lists[TINY_NUM_CLASSES];
// Box 5 helper (TLS push)
extern void tiny_alloc_fast_push(int class_idx, void* ptr);
extern void tiny_alloc_fast_push(int class_idx, hak_base_ptr_t ptr);
// ========== Ownership Check ==========