Linux Privesc Exploiting SUID/SGID Binaries for Linux Privilege Escalation
How attackers abuse SUID/SGID binaries to escalate to root on Linux, plus blue-team detection and hardening.
suid
Linux Privesc 
Linux Privesc PATH Hijacking: Privilege Escalation via Writable PATH Directories and Relative Binaries
How attackers abuse relative paths and writable PATH directories to plant malicious binaries and escalate privileges on Linux.
Linux Privesc Abusing NFS no_root_squash for Local Privilege Escalation
How a misconfigured NFS export with no_root_squash lets a low-priv user plant a root SUID binary and escalate.
Linux Privesc Practical Linux Enumeration with LinPEAS
A hands-on guide to running LinPEAS for fast Linux privilege escalation enumeration, reading its output, and defending against it.