selinux_net...e_invalidate(9)

💅 selinux_netlbl_cache_invalidate — the Kernel API Manual, bestie edition 🎀

Okay so real talk, this one's from the Kernel API Manual and it's a whole mood: tiny function, big job. Let's get into it ✨

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🌸 NAME 🌸

selinux_netlbl_cache_invalidate — literally just invalidates the NetLabel cache, that's it, that's the whole gig 💖

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✨ SYNOPSIS ✨

void selinux_netlbl_cache_invalidate (void );

No cap, that's the entire signature. It returns void and it takes void. Iconic minimalism 👑

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🦋 ARGUMENTS 🦋

• void — no arguments, bestie. None. Zero. Nada. She doesn't want anything from you 🫶

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💜 DESCRIPTION 💜

So what does she actually do? She invalidates the NetLabel security attribute mapping cache. That's the vibe check she's running — the cache gets told "girl, you're expired" and that's the entire function 💅

Not me being obsessed with how short this is 😭

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🌈 SEE ALSO 🌈

The kernel file she lives in:

• ./security/selinux/netlabel.c

And her whole friend group (all of them, no gatekeeping, iykyk):

• selinux_netlbl_sidlookup_cached(9)
• selinux_netlbl_sock_genattr(9)
• selinux_netlbl_sock_getattr(9)
• selinux_netlbl_err(9)
• selinux_netlbl_sk_security_free(9)
• selinux_netlbl_sk_security_reset(9)
• selinux_netlbl_skbuff_getsid(9)
• selinux_netlbl_skbuff_setsid(9)
• selinux_netlbl_sctp_assoc_request(9)
• selinux_netlbl_inet_conn_request(9)
• selinux_netlbl_inet_csk_clone(9)
• selinux_netlbl_sctp_sk_clone(9)
• selinux_netlbl_socket_post_create(9)
• selinux_netlbl_sock_rcv_skb(9)
• selinux_netlbl_option(9)
• selinux_netlbl_socket_setsockopt(9)
• selinux_netlbl_socket_connect_helper(9)
• selinux_netlbl_socket_connect_locked(9)
• selinux_netlbl_socket_connect(9)

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Fr fr, go read the whole squad, they're all in the same file and they all slay in their own way 💀💖

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Later, bestie 🫶 this lil page came from ./security/selinux and it's dated October 2026 — mwah, catch you in the next manpage 💋 ✨🎀💜