vmemdup_array_user(9)

💅 vmemdup_array_user(9) 💅

okay bestie, welcome to the Kernel API Manual — yes we're reading kernel docs together, this is our bonding time now 🫶

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✨ NAME ✨

vmemdup_array_user — duplicate an array from user space 🌸 like, take that array and give it a little twin

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🦋 SYNOPSIS 🦋

void * vmemdup_array_user (const void __user *src , size_t n , size_t size );

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🎀 ARGUMENTS 🎀

• src — the source address, and it lives in user space, so be normal about it 💫
• n — how many array members you wanna copy, aka the headcount 🧚
• size — the size of one single array member, one (1) lil guy 💅

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🔥 RETURN 🔥

on failure you get an ERR_PTR 😭 and ngl, the result may not be physically contiguous — it's giving "spiritually contiguous at best" 💀

free it with kvfree, that's the whole vibe check, no cap 👑

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⭐ SEE ALSO ⭐

• Kernel file ./include/linux/string.h
• memdup_array_user(9)
• strscpy(9)
• strscpy_pad(9)
• mem_is_zero(9)
• sysfs_match_string(9)
• memzero_explicit(9)
• kbasename(9)
• strtomem_pad(9)
• strtomem(9)
• memtostr(9)
• memtostr_pad(9)
• memset_after(9)
• memset_startat(9)
• str_has_prefix(9)
• strstarts(9)
• strends(9)

go read those next, iykyk 📚✨

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lowkey a whole reading list, but you got this bestie 💖

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and that's the page!! brought to you by the fine folks at ./include/linux, dated October 2026, answering to the name vmemdup_array_user(9) — slay, periodt, see you in the next man page 🎀🌈💜