Linux Kernel up to 5.18.2 snd_jack_report null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 5.18.2. The affected element is the function snd_jack_report. The manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2022-49538. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.18.2 and classified as critical. This issue affects the function snd_jack_report. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: ALSA: jack: Access input_dev under mutex It is possible when using ASoC that input_dev is unregistered while calling snd_jack_report, which causes NULL pointer dereference. In order to prevent this serialize access to input_dev using mutex lock.

The advisory is shared at git.kernel.org. The identification of this vulnerability is CVE-2022-49538 since 02/26/2025. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 234545 (SUSE SLES12 Security Update : kernel (SUSE-SU-2025:1293-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.9.318, 4.14.283, 4.19.247, 5.4.198, 5.10.121, 5.15.46, 5.17.14 or 5.18.3 eliminates this vulnerability. Applying the patch 74bab3bcf422593c582e47130aa8eb41ebb2dc09/8487a88136d54a1a4d3f26f1399685db648ab879/c093b62c40027c21d649c5534ad7aa3605a99b00/f68bed124c7699e23ffb4ce4fcc84671e9193cde/e2b8681769f6e205382f026b907d28aa5ec9d59a/5cc6f623f4818c7d7e9e966a45ebf324901ca9c5/9e6a73b0c0f2014eb89249fb1640c5a3d58221c4/582aea6084cc59fec881204f026816d1219f2348/1b6a6fc5280e97559287b61eade2d4b363e836f2 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (234545). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 234545
Nessus Name: SUSE SLES12 Security Update : kernel (SUSE-SU-2025:1293-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.9.318/4.14.283/4.19.247/5.4.198/5.10.121/5.15.46/5.17.14/5.18.3
Patch: 74bab3bcf422593c582e47130aa8eb41ebb2dc09/8487a88136d54a1a4d3f26f1399685db648ab879/c093b62c40027c21d649c5534ad7aa3605a99b00/f68bed124c7699e23ffb4ce4fcc84671e9193cde/e2b8681769f6e205382f026b907d28aa5ec9d59a/5cc6f623f4818c7d7e9e966a45ebf324901ca9c5/9e6a73b0c0f2014eb89249fb1640c5a3d58221c4/582aea6084cc59fec881204f026816d1219f2348/1b6a6fc5280e97559287b61eade2d4b363e836f2

Timelineinfo

02/26/2025 🔍
02/26/2025 +0 days 🔍
02/26/2025 +0 days 🔍
04/17/2025 +50 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-49538 (🔍)
GCVE (CVE): GCVE-0-2022-49538
GCVE (VulDB): GCVE-100-297149

Entryinfo

Created: 02/26/2025 10:33
Updated: 04/17/2025 17:14
Changes: 02/26/2025 10:33 (58), 03/11/2025 06:56 (11), 04/17/2025 17:14 (2)
Complete: 🔍
Cache ID: 216::103

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