[ 0.000000] Linux version 6.12.13-fl1tz (root@fl1tz) #1 SMP PREEMPT_DYNAMIC FL1TZ 6.12.13-1fl1tz1

[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-6.12.13-fl1tz root=/dev/mapper/m0rpheus--vg-root ro quiet

[ 0.218311] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers'

[ 1.104562] EXT4-fs (dm-0): mounted filesystem with ordered data mode. Quota mode: none.

[ 1.387020] systemd[1]: systemd 257.2-3 running in system mode

[ OK ] Started systemd-journald.service - Journal Service.

[ OK ] Mounted writeups.mount - /writeups (12 entries).

[ OK ] Mounted projects.mount - /projects (1 entry).

[ OK ] Started NetworkManager.service - Network Manager.

[ OK ] Reached target network-online.target - Network is Online.

[ OK ] Started rain.service - Digital Rain Wallpaper.

[ OK ] Started ssh.service - OpenBSD Secure Shell server.

[ OK ] Reached target multi-user.target - Multi-User System.

FL1TZ GNU/Linux Rolling m0rpheus tty1

m0rpheus login: M0rPh39s_

Research

Vulnerabilities I've found in open-source code, with how they were reported and fixed.

Heap overflow in json.h when it writes back what it just read

JSONH-01 · October 2026 · CWE-787, CWE-125 · Fixed upstream · no CVE assigned

The parser accepts InfinityNaN as one number. On the way back out, the pass that measures the buffer counts it as 0 bytes and the pass that fills it writes 11.