kmemdup_nul(9)

💅 kmemdup_nul — Kernel API Manual, bestie edition ✨

okay so welcome to the Kernel API Manual page for kmemdup_nul, the little function with main-character energy for turning unterminated data into a NUL-terminated string. no cap, that's literally the vibe check. 🫶

🎀 NAME 🎀

kmemdup_nul — Create a NUL-terminated string from unterminated data 💖

🌸 SYNOPSIS 🌸

char * kmemdup_nul (const char *s , size_t len , gfp_t gfp );

🦋 ARGUMENTS 🦋

• s — The data to stringify. 🍓
• len — The size of the data. 🌸
• gfp — the GFP mask used in the kmalloc call when allocating memory. ✨

💖 RETURN 💖

You get a newly allocated copy of s with NUL-termination, or NULL in case of error. periodt. 🫶

👑 SEE ALSO 👑

Kernel file ./mm/util.c — plus the whole SEE ALSO friend group:

• kfree_const(9)
• __kmemdup_nul(9)
• kstrdup(9)
• kstrdup_const(9)
• kstrndup(9)
• kmemdup(9)
• kmemdup_array(9)
• kvmemdup(9)
• memdup_user(9)
• vmemdup_user(9)
• strndup_user(9)
• memdup_user_nul(9)
• randomize_page(9)
• __account_locked_vm(9)
• account_locked_vm(9)
• __vmalloc_array(9)
• vmalloc_array(9)
• __vcalloc(9)
• vcalloc(9)
• folio_mapping(9)
• folio_copy(9)
• get_cmdline(9)
• mem_dump_obj(9)
• compat_set_desc_from_vma(9)
• __compat_vma_mmap(9)
• compat_vma_mmap(9)
• snapshot_page(9)
• mmap_action_prepare(9)
• mmap_action_complete(9)
• folio_pte_batch(9)
• page_range_contiguous(9)

whew, that's the page 💅 source/version: ./mm; date: October 2026; page: kmemdup_nul(9) — signing off, bestie 🫶✨