#VU91671 Integer underflow in Linux kernel - CVE-2024-26927

Vulnerability identifier: #VU91671

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-26927

CWE-ID: CWE-191

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to integer underflow within the sof_ipc3_fw_parse_ext_man() function in sound/soc/sof/ipc3-loader.c. A local user can execute arbitrary code.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

---

External links
https://git.kernel.org/stable/c/d133d67e7e724102d1e53009c4f88afaaf3e167c
https://git.kernel.org/stable/c/ced7df8b3c5c4751244cad79011e86cf1f809153
https://git.kernel.org/stable/c/044e220667157fb9d59320341badec59cf45ba48
https://git.kernel.org/stable/c/9eeb8e1231f6450c574c1db979122e171a1813ab
https://git.kernel.org/stable/c/98f681b0f84cfc3a1d83287b77697679e0398306

---

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.