cap_settime(9)

💅 cap_settime(9) — a Kernel API Manual moment

okay bestie, welcome to the Kernel API Manual entry for cap_settime, and honestly? it's giving "short and iconic." let's get into it ✨

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🌸 NAME

cap_settime — figure out whether the current process is even allowed to set the system clock 🕰️

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🦋 SYNOPSIS

int cap_settime (const struct timespec64 *ts , const struct timezone *tz
);

like yes, that's the whole thing. no cap, that's it. 🔥

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🎀 ARGUMENTS

• ts — the time you wanna set, bestie ⏰
• tz — the timezone you wanna set 🌍

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💜 DESCRIPTION

so basically this one does a vibe check on the current process: may it set the system clock and the timezone info or not? it returns 0 if permission is granted 🫶, and -ve if it's denied 💀 (yes, negative — that's the no-fun answer).

literally that's the whole function. short queen behavior 👑.

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⭐ SEE ALSO

fr fr go read these next, they're all in the kernel file ./security/commoncap.c:

• cap_capable_helper(9)
• cap_capable(9)
• cap_ptrace_access_check(9)
• cap_ptrace_traceme(9)
• cap_capget(9)
• cap_capset(9)
• cap_inode_need_killpriv(9)
• cap_inode_killpriv(9)
• kuid_root_in_ns(9)
• rootid_from_xattr(9)
• cap_convert_nscap(9)
• get_vfs_caps_from_disk(9)
• cap_bprm_creds_from_file(9)
• cap_inode_setxattr(9)
• cap_inode_removexattr(9)
• cap_task_fix_setuid(9)
• cap_task_setscheduler(9)
• cap_task_setioprio(9)
• cap_task_setnice(9)
• cap_task_prctl(9)
• cap_vm_enough_memory(9)
• cap_mmap_addr(9)

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lowkey obsessed with how many of these there are. collect them all like stickers 🍓

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mwah 💋 that's the page! this lil entry lives under ./security in the Kernel API Manual, and the version/date stamp on it is October 2026 — cap_settime(9), periodt. 🧚‍♀️🌈