NULL pointer dereference in Linux kernel driver-api fpga

1) NULL pointer dereference

EUVDB-ID: #VU93124

Risk: Low

CVSSv3.1: 4.8 [AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-37021

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 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

CPE2.3

External links

http://git.kernel.org/stable/c/2da62a139a6221a345db4eb9f4f1c4b0937c89ad
http://git.kernel.org/stable/c/62ac496a01c9337a11362cea427038ba621ca9eb
http://git.kernel.org/stable/c/4d4d2d4346857bf778fafaa97d6f76bb1663e3c9

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.