kmsan_init_shadow(9)

💅 kmsan_init_shadow — Kernel API Manual ✨

okay so bestie, welcome to the kmsan_init_shadow(9)</p> page 💖 this one lives in the Kernel API Manual and honestly? it's a short one, but it's lowkey iconic.

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🌸 NAME 🌸

kmsan_init_shadow — bestie, this is the one that initializes the KMSAN shadow at boot time. that's it. that's the whole gig 🎀

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✨ SYNOPSIS ✨

void kmsan_init_shadow (void );

like, that's the entire signature. no parameters, no drama, no crumbs. periodt 💅

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🦋 ARGUMENTS 🦋

• void — no arguments. zero. none. nothing. not a single little guy gets passed in here 🙈

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🔥 DESCRIPTION 🔥

so what's she actually doing? she allocates and initializes the KMSAN metadata that's needed for early allocations. that's the vibe — the early-boot era needs its metadata set up, and this function is the one who shows up and does it ✨

no cap, that's the entire description. sometimes the main character energy is just doing your one job correctly 👑

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🌈 SEE ALSO 🌈

okay this is where it pops off, because the crossover episode is LONG. go check these out, fr fr:

• the kernel file ./include/linux/kmsan.h 🍓
• kmsan_task_create(9)
• kmsan_task_exit(9)
• kmsan_init_runtime(9)
• kmsan_memblock_free_pages(9)
• kmsan_alloc_page(9)
• kmsan_free_page(9)
• kmsan_copy_page_meta(9)
• kmsan_slab_alloc(9)
• kmsan_slab_free(9)
• kmsan_kmalloc_large(9)
• kmsan_kfree_large(9)
• kmsan_ioremap_page_range(9)
• kmsan_iounmap_page_range(9)
• kmsan_handle_dma(9)
• kmsan_handle_dma_sg(9)
• kmsan_handle_urb(9)
• kmsan_unpoison_entry_regs(9)
• kmsan_get_metadata(9)
• kmsan_enable_current(9)
• kmsan_disable_current(9)
• memset_no_sanitize_memory(9)

that's the whole friend group and honestly they all ate 💜

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ngl, if you're reading this page you're probably deep in kernel sanitizer territory, and honestly? slay. that's a flex 🫶

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so yeah — this page is brought to you by the source/version ./include/linux, dated October 2026 ⭐ mwah, hope that helped, toodles bestie 😭💖🎀