#VU97781 Use-after-free in Linux kernel - CVE-2024-46849

Vulnerability identifier: #VU97781

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-2024-46849

CWE-ID: CWE-416

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 escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the axg_card_add_tdm_loopback() function in sound/soc/meson/axg-card.c. A local user can escalate privileges on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/e1a199ec31617242e1a0ea8f312341e682d0c037
https://git.kernel.org/stable/c/e43364f578cdc2f8083abbc0cb743ea55e827c29
https://git.kernel.org/stable/c/7d318166bf55e9029d56997c3b134f4ac2ae2607
https://git.kernel.org/stable/c/4f9a71435953f941969a4f017e2357db62d85a86

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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.