security_sk_free(9)

📦 version 7.3.1, in nixpkgs unstable

💅 security_sk_free ✨

okay so this is security_sk_free, and it lives in the Kernel API Manual, section 9 — yes bestie, section 9, we're in the deep kernel internals now, this is main character energy for LSM girlies 🎀

💖 NAME 💖

security_sk_free — frees the sock's LSM blob 🦋

🌸 SYNOPSIS 🌸

void security_sk_free (struct sock *sk );

✨ ARGUMENTS ✨

  • sk — the sock. that's it. that's the whole argument, bestie 🫶

🎀 DESCRIPTION 🎀

so what does it do? it deallocates the security structure. periodt. no cap, that's the entire description — it's a void function, so nothing comes back to you, it just does its little cleanup moment and leaves 💅

think of it as the goodbye wave for the sock's LSM blob, if you will 👑

🦋 SEE ALSO 🦋

okay bestie, deep breath, because this list is long and I'm not skipping a single one of these. Everything here hangs out in the Kernel file ./security/security.c 🌈

first up, the lsm_* allocator besties:

then the binder girlies 💀

ptrace, capget/capset, the quotactl trio, syslog, settime64 and mem:

bprm things (exec vibes, we love her) 🔥

fs_context + superblock + mount city, buckle up 🧚

okay now the path + inode + dentry saga, this is the longest chapter of the group chat 😭

file hooks next, file girlies rise 🌸

task + cred era 👑

IPC time, msg queue / shm / sem, the whole trio 💜

labels, secctx and procattr, the "what even is a label" corner 🎀

networking arc, aka the socket saga, we're so back 🌈

and here's our own little neighborhood — the sk besties, hi bestie 🫶

infiniband + xfrm, the deep magic 🔮

keys + audit 💀

bpf, locked_down, bdev, perf, uring, initramfs — the grand finale, we ate 🔥

and that's the whole list, bestie, every single one, no skips, no cap 💅✨

ngl this one's short and sweet — it's a void function whose whole personality is "deallocate security structure". but now you know exactly where it lives and everyone it hangs out with 🫶

🌸 okay that's the whole page!! this one comes from ./security and it's dated October 2026 — so go forth and free those sock LSM blobs, icon, you've got this 👑🎀✨

📦 where this page comes from