About Me

My name is Junxi Qian. I am currently pursuing my Master's degree in Network and Information Security at the University of Chinese Academy of Sciences (UCAS). I completed my undergraduate studies in Computer Science and Technology at South China Normal University (SCNU), where I was the captain of the Sloth and participated in CTFs through union teams W&M and S1uM4i.

My research interests encompass software security, operating system security, and AI for security. Meanwhile, I am actively learning about post‑training techniques for large language models, such as fine‑tuning, reinforcement learning, and model alignment, with an eye toward integrating them into security research.

Education

University of Chinese Academy of Sciences (UCAS)   2026 – Present
MSc in Network and Information Security
South China Normal University (SCNU)   2022 – 2026
BSc in Computer Science

Some Open‑Source and Proprietary Project Contributions

Linux Kernel Report and Patch

  • CVE-2026-43186: ipv6: ioam: fix heap buffer overflow in __ioam6_fill_trace_data()   [report/patch]
  • CVE-2026-31774: io_uring/net: fix slab-out-of-bounds read in io_bundle_nbufs()   [report/patch]
  • CVE-2026-46183: mm/damon/sysfs-schemes: protect path kfree() with damon_sysfs_lock   [report/patch]
  • CVE-2026-46121: mm/damon/sysfs-schemes: protect memcg_path kfree() with damon_sysfs_lock   [report/patch]
  • CVE-2026-53011: net/sched: taprio: fix use-after-free in advance_sched() on schedule switch   [report]
  • CVE-2026-31629: nfc: llcp: add missing return after LLCP_CLOSED checks   [report/patch]
  • commit: io_uring: protect remaining lockless ctx->rings accesses with RCU   [report/test]
  • commit: fuse: fix writeback array overflow when max_pages is one   [report/patch]
    • . . . . . .

Windows Kernel CVE

CVE-2026-32195: ntoskrnl.exe    CVE-2026-45638: afd.sys    CVE-2026-49184: ntfs.sys

Awards

  • The 1st Prize of Qiangwang Cup Final, 2025
  • The 🥉 of XCTF Final, 2025
  • The 5th of AliCTF, 2025
  • 37 Interactive Entertainment University Empowerment Scholarship, 2025
  • The 🏆 Champion of CISCN (South China Division), 2024
  • The 1st Prize of Guangdong University Students Cybersecurity Attack and Defense Competition, 2024

Student Leadership Experience

South China Normal University, School of Computer Science
Youth League Committee – Science and Technology Research Department
  • Vice Minister (Jul 2023 – Jul 2024)
  • Member (Oct 2022 – Jul 2023)
South China Normal University
Cybersecurity Team "Sloth"
  • Captain (Jul 2024 – Jul 2025)
  • Member (Apr 2023 – Jul 2024; Jul 2025 – Jun 2026)

Contact

📧 Email: qjx1298677004 [AT] gmail.com 🐙 Github: github.com/qanux 🐧 QQ: MTI5ODY3NzAwNA== 💬 WeChat: ZWF0U29tZVFhbnV4