#VU90630 NULL pointer dereference in Linux kernel - CVE-2024-26623

Vulnerability identifier: #VU90630

Vulnerability 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-2024-26623

CWE-ID: CWE-476

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 perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the pdsc_setup(), pdsc_stop() and pdsc_fw_down() functions in drivers/net/ethernet/amd/pds_core/core.c, within the pdsc_process_notifyq(), pdsc_process_adminq(), pds_core_intr_credits(), pdsc_adminq_isr(), pdsc_adminq_post() and queue_work() functions in drivers/net/ethernet/amd/pds_core/adminq.c. A local user can perform a denial of service (DoS) attack.

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/22cd6046eb2148b18990257505834dd45c672a1b
https://git.kernel.org/stable/c/5939feb63ea1f011027576c64b68b681cbad31ca
https://git.kernel.org/stable/c/7e82a8745b951b1e794cc780d46f3fbee5e93447

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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.