NULL pointer dereference in Linux kernel spi driver

1) NULL pointer dereference

EUVDB-ID: #VU104580

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-2022-49475

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 fsl_qspi_probe() function in drivers/spi/spi-fsl-qspi.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.10 - 5.19 rc6

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:5.10:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.10:rc1:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.10:rc2:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.10:rc3:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.10:rc4:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.10:rc5:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.10:rc7:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.10.1:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.10.2:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:5.10.3:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/10f537219629769498ecb8515e096be213224c24
https://git.kernel.org/stable/c/33dda87d04598ac5d9a849218a373443f7d3de66
https://git.kernel.org/stable/c/560dcbe1c7a78f597f2167371ebdbe2bca3d0735
https://git.kernel.org/stable/c/9d9c84825c3ec359b165c762a424cfdefe87fdd7
https://git.kernel.org/stable/c/a2b331ac11e1cac56f5b7d367e9f3c5796deaaed
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.121
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.46
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.14
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.3
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19

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.