Use-after-free in Linux kernel spi driver

1) Use-after-free

EUVDB-ID: #VU90196

Risk: Low

CVSSv3.1: 7.7 [AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-26866

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the fsl_lpspi_probe() function in drivers/spi/spi-fsl-lpspi.c. A local user can escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

External links

http://git.kernel.org/stable/c/da83ed350e4604b976e94239b08d8e2e7eaee7ea
http://git.kernel.org/stable/c/1543418e82789cc383cd36d41469983c64e3fc7f
http://git.kernel.org/stable/c/996ce839606afd0fef91355627868022aa73eb68
http://git.kernel.org/stable/c/2ae0ab0143fcc06190713ed81a6486ed0ad3c861

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.