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5.5
MEDIUM CVSS 3.1
CVE-2024-38618
ALSA: timer: Set lower bound of start tick time
Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: timer: Set lower bound of start tick time Currently ALSA timer doesn't have the lower limit of the start tick time, and it allows a very small size, e.g. 1 tick with 1ns resolution for hrtimer. Such a situation may lead to an unexpected RCU stall, where the callback repeatedly queuing the expire update, as reported by fuzzer. This patch introduces a sanity check of the timer start tick time, so that the system returns an error when a too small start size is set. As of this patch, the lower limit is hard-coded to 100us, which is small enough but can still work somehow.

INFO

Published Date :

June 19, 2024, 2:15 p.m.

Last Modified :

Nov. 4, 2025, 6:16 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2024-38618 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 MEDIUM [email protected]
Solution
A vulnerability in the Linux kernel requires updating the affected packages.
  • Update the affected kernel packages.
  • Update other affected packages.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-38618.

URL Resource
https://git.kernel.org/stable/c/2c95241ac5fc90c929d6c0c023e84bf0d30e84c3 Patch
https://git.kernel.org/stable/c/4a63bd179fa8d3fcc44a0d9d71d941ddd62f0c4e Patch
https://git.kernel.org/stable/c/68396c825c43664b20a3a1ba546844deb2b4e48f Patch
https://git.kernel.org/stable/c/74bfb8d90f2601718ae203faf45a196844c01fa1 Patch
https://git.kernel.org/stable/c/83f0ba8592b9e258fd80ac6486510ab1dcd7ad6e Patch
https://git.kernel.org/stable/c/abb1ad69d98cf1ff25bb14fff0e7c3f66239e1cd Patch
https://git.kernel.org/stable/c/bdd0aa055b8ec7e24bbc19513f3231958741d0ab Patch
https://git.kernel.org/stable/c/ceab795a67dd28dd942d0d8bba648c6c0f7a044b Patch
https://git.kernel.org/stable/c/2c95241ac5fc90c929d6c0c023e84bf0d30e84c3 Patch
https://git.kernel.org/stable/c/4a63bd179fa8d3fcc44a0d9d71d941ddd62f0c4e Patch
https://git.kernel.org/stable/c/68396c825c43664b20a3a1ba546844deb2b4e48f Patch
https://git.kernel.org/stable/c/74bfb8d90f2601718ae203faf45a196844c01fa1 Patch
https://git.kernel.org/stable/c/83f0ba8592b9e258fd80ac6486510ab1dcd7ad6e Patch
https://git.kernel.org/stable/c/abb1ad69d98cf1ff25bb14fff0e7c3f66239e1cd Patch
https://git.kernel.org/stable/c/bdd0aa055b8ec7e24bbc19513f3231958741d0ab Patch
https://git.kernel.org/stable/c/ceab795a67dd28dd942d0d8bba648c6c0f7a044b Patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-38618 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-38618 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-38618 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2024-38618 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 04, 2025

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
  • Initial Analysis by [email protected]

    Oct. 03, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CWE NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.33 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.93 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.161 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.219 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.278 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.19.316 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.9.3
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/2c95241ac5fc90c929d6c0c023e84bf0d30e84c3 Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/2c95241ac5fc90c929d6c0c023e84bf0d30e84c3 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/4a63bd179fa8d3fcc44a0d9d71d941ddd62f0c4e Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/4a63bd179fa8d3fcc44a0d9d71d941ddd62f0c4e Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/68396c825c43664b20a3a1ba546844deb2b4e48f Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/68396c825c43664b20a3a1ba546844deb2b4e48f Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/74bfb8d90f2601718ae203faf45a196844c01fa1 Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/74bfb8d90f2601718ae203faf45a196844c01fa1 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/83f0ba8592b9e258fd80ac6486510ab1dcd7ad6e Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/83f0ba8592b9e258fd80ac6486510ab1dcd7ad6e Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/abb1ad69d98cf1ff25bb14fff0e7c3f66239e1cd Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/abb1ad69d98cf1ff25bb14fff0e7c3f66239e1cd Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/bdd0aa055b8ec7e24bbc19513f3231958741d0ab Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/bdd0aa055b8ec7e24bbc19513f3231958741d0ab Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/ceab795a67dd28dd942d0d8bba648c6c0f7a044b Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/ceab795a67dd28dd942d0d8bba648c6c0f7a044b Types: Patch
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://git.kernel.org/stable/c/2c95241ac5fc90c929d6c0c023e84bf0d30e84c3
    Added Reference https://git.kernel.org/stable/c/4a63bd179fa8d3fcc44a0d9d71d941ddd62f0c4e
    Added Reference https://git.kernel.org/stable/c/68396c825c43664b20a3a1ba546844deb2b4e48f
    Added Reference https://git.kernel.org/stable/c/74bfb8d90f2601718ae203faf45a196844c01fa1
    Added Reference https://git.kernel.org/stable/c/83f0ba8592b9e258fd80ac6486510ab1dcd7ad6e
    Added Reference https://git.kernel.org/stable/c/abb1ad69d98cf1ff25bb14fff0e7c3f66239e1cd
    Added Reference https://git.kernel.org/stable/c/bdd0aa055b8ec7e24bbc19513f3231958741d0ab
    Added Reference https://git.kernel.org/stable/c/ceab795a67dd28dd942d0d8bba648c6c0f7a044b
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Nov. 08, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 CISA-ADP AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 15, 2024

    Action Type Old Value New Value
    Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 27, 2024

    Action Type Old Value New Value
    Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html [No types assigned]
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 19, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: ALSA: timer: Set lower bound of start tick time Currently ALSA timer doesn't have the lower limit of the start tick time, and it allows a very small size, e.g. 1 tick with 1ns resolution for hrtimer. Such a situation may lead to an unexpected RCU stall, where the callback repeatedly queuing the expire update, as reported by fuzzer. This patch introduces a sanity check of the timer start tick time, so that the system returns an error when a too small start size is set. As of this patch, the lower limit is hard-coded to 100us, which is small enough but can still work somehow.
    Added Reference kernel.org https://git.kernel.org/stable/c/68396c825c43664b20a3a1ba546844deb2b4e48f [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/74bfb8d90f2601718ae203faf45a196844c01fa1 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/bdd0aa055b8ec7e24bbc19513f3231958741d0ab [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/83f0ba8592b9e258fd80ac6486510ab1dcd7ad6e [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/ceab795a67dd28dd942d0d8bba648c6c0f7a044b [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/2c95241ac5fc90c929d6c0c023e84bf0d30e84c3 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/abb1ad69d98cf1ff25bb14fff0e7c3f66239e1cd [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/4a63bd179fa8d3fcc44a0d9d71d941ddd62f0c4e [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5.5
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact