Race condition in Linux kernel freescale enetc driver

1) Race condition

EUVDB-ID: #VU93378

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-2022-48645

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a race condition within the enetc_vf_set_features() and enetc_vf_netdev_setup() functions in drivers/net/ethernet/freescale/enetc/enetc_vf.c, within the enetc_pf_set_features() function in drivers/net/ethernet/freescale/enetc/enetc_pf.c, within the enetc_close() and enetc_setup_tc_mqprio() functions in drivers/net/ethernet/freescale/enetc/enetc.c, within the fsl-enetc-$() function in drivers/net/ethernet/freescale/enetc/Makefile. 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

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/510e703e4ed0e011db860bc21228aff48fc9eea7
https://git.kernel.org/stable/c/23022b74b1a23bed044f6bc96cf92f6ca5f3e75f
https://git.kernel.org/stable/c/5641c751fe2f92d3d9e8a8e03c1263ac8caa0b42

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.