$ cat writeup.md…
$ cat writeup.md…
volgactf2026
Task: Heap exploitation on glibc 2.42 with 2-byte overflow, limited allocations (16), limited overflows (4), no UAF read, no output primitive. Solution: Corrupt tcache_perthread_struct via overlapping chunks to bypass safe-linking, partial overwrite stdout for leak (12-bit brute force), then House of Apple 2 for RCE.
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