Use-after-free in Linux kernel spi driver

1) Use-after-free

EUVDB-ID: #VU97782

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/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-2024-46853

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 nxp_fspi_fill_txfifo() function in drivers/spi/spi-nxp-fspi.c. A local user can escalate privileges on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

External links

http://git.kernel.org/stable/c/09af8b0ba70072be831f3ec459f4063d570f9e24
http://git.kernel.org/stable/c/af9ca9ca3e44f48b2a191e100d452fbf850c3d87
http://git.kernel.org/stable/c/d1a1dfcec77c57b1181da93d11a3db1bc4eefa97
http://git.kernel.org/stable/c/2a8787c1cdc7be24fdd8953ecd1a8743a1006235

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.