common_perm_cond(9)

💖 common_perm_cond(9) 💖

okay bestie, welcome to the Kernel API Manual ✨ this is common_perm_cond, and honestly it's lowkey the permission bouncer of the inode world 🫶 it's the common permission wrapper around inode cond, periodt.

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🌸 NAME 🌸

common_perm_cond — the common permission wrapper around inode cond 💅 like, it wraps the permission check so you don't have to, iykyk.

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✨ SYNOPSIS ✨

int common_perm_cond (const char *op , const struct path *path , u32
mask );

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🎀 ARGUMENTS 🎀

• op — the operation being checked 👀 literally the "what are we even doing here" string.
• path — the location to check, and bestie this one is NOT NULL 🚨 like do not come for this function with a NULL path, it's not the vibe.
• mask — the requested permissions mask 🔥 the actual list of perms you're asking for.

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💀 RETURN 💀

0 if you're slaying ✅ — otherwise an error code if there's an error or permission was denied 🙈 no in-between, no wiggle room.

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🦋 SEE ALSO 🦋

the kernel file is ./security/apparmor/lsm.c and it's the main character here 👑 — go read these too, they're all part of the same friend group:

• common_perm(9)
• common_perm_dir_dentry(9)
• common_perm_rm(9)
• common_perm_create(9)
• apparmor_uring_override_creds(9)
• apparmor_uring_sqpoll(9)
• apparmor_bprm_committing_creds(9)
• apparmor_bprm_committed_creds(9)
• apparmor_sk_clone_security(9)
• apparmor_unix_stream_connect(9)
• apparmor_unix_may_send(9)
• apparmor_socket_post_create(9)
• apparmor_socket_bind(9)
• apparmor_socket_getpeersec_stream(9)
• apparmor_socket_getpeersec_dgram(9)
• apparmor_sock_graft(9)
• apparmor_socket_sock_rcv_skb(9)
• set_init_ctx(9)

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ngl bestie, remember: path is NOT NULL. that's not a suggestion, that's the whole vibe check. 💅

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okay that's the page!! 🎀 this one came from ./security/apparmor 🌈, dated October 2026 ⭐ — mwah, go touch some inodes, ily 🫶💖🧚