#VU64702 Out-of-bounds read in Linux kernel

Published: 2022-06-27 | Updated: 2022-06-28

Vulnerability identifier: #VU64702

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-0941


Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation


The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists in __bpf_skb_max_len() function in net/core/filter.c in the Linux kernel. A local user with special privilege can gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information.

Install updates from vendor's website.

Vulnerable software versions

Linux kernel:

External links

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.

Latest bulletins with this vulnerability