Local denial of service in Linux kernel hda device driver
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-46926 |
| CWE-ID | CWE-399 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Linux kernel Operating systems & Components / Operating system |
| Vendor |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Resource management error
EUVDB-ID: #VU89253
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-46926
CWE-ID:
CWE-399 - Resource Management Errors
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within the sdw_intel_acpi_cb() function in sound/hda/intel-sdw-acpi.c. A local user can perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsLinux kernel: before 5.15.13
External linkshttp://git.kernel.org/stable/c/cce476954401e3421afafb25bbaa926050688b1d
http://git.kernel.org/stable/c/385f287f9853da402d94278e59f594501c1d1dad
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
