#VU104600 NULL pointer dereference in Linux kernel - CVE-2022-49538
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104600
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-49538
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the snd_jack_dev_disconnect(), snd_jack_dev_register(), snd_jack_new(), EXPORT_SYMBOL() and snd_jack_report() functions in sound/core/jack.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/1b6a6fc5280e97559287b61eade2d4b363e836f2
- https://git.kernel.org/stable/c/582aea6084cc59fec881204f026816d1219f2348
- https://git.kernel.org/stable/c/5cc6f623f4818c7d7e9e966a45ebf324901ca9c5
- https://git.kernel.org/stable/c/74bab3bcf422593c582e47130aa8eb41ebb2dc09
- https://git.kernel.org/stable/c/8487a88136d54a1a4d3f26f1399685db648ab879
- https://git.kernel.org/stable/c/9e6a73b0c0f2014eb89249fb1640c5a3d58221c4
- https://git.kernel.org/stable/c/c093b62c40027c21d649c5534ad7aa3605a99b00
- https://git.kernel.org/stable/c/e2b8681769f6e205382f026b907d28aa5ec9d59a
- https://git.kernel.org/stable/c/f68bed124c7699e23ffb4ce4fcc84671e9193cde
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.198