#VU93124 NULL pointer dereference in Linux kernel - CVE-2024-37021

Vulnerability identifier: #VU93124

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-2024-37021

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 ATTRIBUTE_GROUPS(), fpga_mgr_dev_match(), EXPORT_SYMBOL_GPL(), fpga_mgr_unlock(), fpga_mgr_register_full(), ERR_PTR(), fpga_mgr_register(), devm_fpga_mgr_unregister(), devm_fpga_mgr_register_full() and devm_fpga_mgr_register() functions in drivers/fpga/fpga-mgr.c, within the fpga_mgr_register() and fpga_mgr_register_full() functions in Documentation/driver-api/fpga/fpga-mgr.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
http://git.kernel.org/stable/c/2da62a139a6221a345db4eb9f4f1c4b0937c89ad
http://git.kernel.org/stable/c/62ac496a01c9337a11362cea427038ba621ca9eb
http://git.kernel.org/stable/c/4d4d2d4346857bf778fafaa97d6f76bb1663e3c9

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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.