#VU93123 NULL pointer dereference in Linux kernel - CVE-2024-36479

Vulnerability identifier: #VU93123

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-2024-36479

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 fpga_bridge_disable(), of_fpga_bridge_get(), fpga_bridge_dev_match(), fpga_bridge_get(), fpga_bridge_put(), ATTRIBUTE_GROUPS(), fpga_bridge_register() and ERR_PTR() functions in drivers/fpga/fpga-bridge.c, within the fpga_bridge_register() function in Documentation/driver-api/fpga/fpga-bridge.rst. 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/d7c4081c54a1d4068de9440957303a76f9e5c95b
https://git.kernel.org/stable/c/6896b6b2e2d9ec4e1b0acb4c1698a75a4b34d125
https://git.kernel.org/stable/c/1da11f822042eb6ef4b6064dc048f157a7852529

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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.