NULL pointer dereference in Linux kernel firmware arm_scmi driver



| Updated: 2025-05-14
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-26893
CWE-ID CWE-476
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) NULL pointer dereference

EUVDB-ID: #VU90577

Risk: Low

CVSSv4.0: 4.3 [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-2024-26893

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

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 smc_chan_free() function in drivers/firmware/arm_scmi/smc.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.1 - 6.8.1

CPE2.3 External links

https://git.kernel.org/stable/c/0d276d9f335f41d6524258d58c0c0241ef9a83a4
https://git.kernel.org/stable/c/857f56db8c3a71f9871922b6984ff74ad588cb2c
https://git.kernel.org/stable/c/8ffaa17ccb1eb1b65cf85db63225a3581c303773
https://git.kernel.org/stable/c/ead445dd3d681020af333649a27306160eee761d
https://git.kernel.org/stable/c/f1d71576d2c9ec8fdb822173fa7f3de79475e9bd
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.83
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.23
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.11
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.2


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.



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