proc_pid_seccomp(5)

💖 NAME 💖

/proc/pid/seccomp — secure computing mode, bestie 💅

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🦋 DESCRIPTION 🦋

/proc/pid/seccomp (Linux 2.6.12 to Linux 2.6.22)

Okay so listen, this file was the girl for reading and changing your process's secure computing (seccomp) mode setting. Like, it's giving very simple, very demure, only two moods fr fr:

• It holds the value 0 if the process is not in seccomp mode
• It holds the value 1 if the process is in strict seccomp mode (peep seccomp(2) for the lore 👀)

And here's the part where you gotta pay attention, no cap: writing 1 to this file drops the process into strict seccomp mode and it is irreversible. Like, permanent permanent. No undo, no take-backs, no "wait bestie I changed my mind" 😭

Further attempts to write to the file fail with the EPERM error. The door is closed, the lights are off, the vibe is sealed 💀

Then in Linux 2.6.23? This file went away. Gone. It got replaced by the prctl(2) PR_GET_SECCOMP and PR_SET_SECCOMP operations — and later on, by seccomp(2) and the Seccomp field in /proc/pid/status. She served her era and passed the torch 👑✨

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🌸 SEE ALSO 🌸

• proc(5)

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that's the whole page, babe — short, iconic, and fully historical 🎀

This was brought to you by Linux man-pages 6.20, dated 2026-02-08, and it lived in the File Formats Manual section as proc_pid_seccomp(5). mwah 💋🫶