---
id: CVE-2024-50205
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size()

  The step variable is initialized to zero
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size()

  The step variable is initialized to zero. It is changed in the loop,
  but if it's not changed i…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-369
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 4.20, < 5.4.285'
  - 'linux_kernel >= 5.5, < 5.10.229'
  - 'linux_kernel >= 5.11, < 5.15.170'
  - 'linux_kernel >= 5.16, < 6.1.115'
  - 'linux_kernel >= 6.2, < 6.6.59'
  - 'linux_kernel >= 6.7, < 6.11.6'
  - linux_kernel = 6.12
patched:
  - linux_kernel 6.11.6
published: '2024-11-08'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T01:19:10.287'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-50205'
references:
  - url: 'https://git.kernel.org/stable/c/3452d39c4704aa12504e4190298c721fb01083c3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/4bdc21506f12b2d432b1f2667e5ff4c75eee58e3'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/5e431f85c87bbffd93a9830d5a576586f9855291'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/72cafe63b35d06b5cfbaf807e90ae657907858da'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7d4eb9e22131ec154e638cbd56629195c9bcbe9a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d2826873db70a6719cdd9212a6739f3e6234cfc4'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d575414361630b8b0523912532fcd7c79e43468c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-265688.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.00229
epssPercentile: 0.12779
ingestedAt: '2026-10-15T03:30:12.766Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2025-10-01T20:17:39.245341Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size()

The step variable is initialized to zero. It is changed in the loop,
but if it's not changed it will remain zero. Add a variable check
before the division.

The observed behavior was introduced by commit 826b5de90c0b
("ALSA: firewire-lib: fix insufficient PCM rule for period/buffer size"),
and it is difficult to show that any of the interval parameters will
satisfy the snd_interval_test() condition with data from the
amdtp_rate_table[] table.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

## Affected

- `linux_kernel >= 4.20, < 5.4.285`
- `linux_kernel >= 5.5, < 5.10.229`
- `linux_kernel >= 5.11, < 5.15.170`
- `linux_kernel >= 5.16, < 6.1.115`
- `linux_kernel >= 6.2, < 6.6.59`
- `linux_kernel >= 6.7, < 6.11.6`
- `linux_kernel = 6.12`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.11.6`