security_msg_msg_free(9)

📦 version 7.3.1, in nixpkgs unstable

💖 security_msg_msg_free(9) 💖

okay bestie, welcome to the Kernel API Manual 🎀 — yes that's the manual name, and yes we're absolutely reading kernel LSM docs for fun now. this one's a tiny little function but she's iconic in her own quiet way, iykyk ✨

🌸 NAME 🌸

security_msg_msg_free — free a sysv ipc message LSM blob 🫶

like… that's literally her whole job. she frees the blob. she's a free-er. a liberator. a little cleanup queen 💅

✨ SYNOPSIS ✨

void security_msg_msg_free (struct msg_msg *msg );

note the void — she returns nothing, she's not here to give you answers, she's here to release 🦋

🎀 ARGUMENTS 🎀

  • msg — message structure 💌 (the sysv ipc message thingy whose security blob is getting deallocated, ok)

💜 DESCRIPTION 💜

Deallocate the security structure for this message.

that's it. that's the whole vibe. no cap 🔥 you hand over the message, and the security structure attached to it gets deallocated. clean, simple, one (1) job, main character energy honestly 👑

🦋 SEE ALSO 🦋

okay so this is where it gets unhinged — the cross-reference list is lowkey enormous and we're doing all of it, every single one, no skipping, we don't do that here 💀

kernel file: ./security/security.c 📁

the LSM blob alloc crew ✨:

the binder + ptrace + caps + quota + misc syscall gang 🫶:

superblock besties 🌈:

inode + dentry + path era 🎀:

the inode operations megamix 🔥 (this one's long, hydrate first):

file things 💅:

task + creds 🧚:

more task stuff (yes there's more, she's thorough) 👑:

sysv ipc girlies — this is literally our section, hi bestie 🌸:

attrs + secctx 🦋:

networking era ⭐:

sockets + sk bs (affectionate) 💀:

sctp + mptcp + ib + xfrm (the deep lore) 🙈:

keys + audit + bpf 🍓:

and the final stretch (we made it, I'm proud of us) 🏁:

fr fr that's the whole list, nothing dropped, we ate and left zero crumbs 💅

and that's the page, bestie!! 🌈 this little doc lives down in ./security and it's dated October 2026 — so like, future vibes only 💜 mwah, go free those blobs responsibly 🫶✨

📦 where this page comes from