#VU99054 Double free in Linux kernel - CVE-2022-49026

Vulnerability identifier: #VU99054

Vulnerability 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-2022-49026

CWE-ID: CWE-415

Exploitation vector: Local

Exploit availability: No

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

Vendor: Linux Foundation

Description

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

The vulnerability exists due to a double free error within the e100_xmit_prepare() function in drivers/net/ethernet/intel/e100.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, 5.10 rc1, 5.10 rc2, 5.10 rc3, 5.10 rc4, 5.10 rc5, 5.10 rc7, 5.10.1, 5.10.2, 5.10.3, 5.10.4, 5.10.5, 5.10.6, 5.10.7, 5.10.8, 5.10.9, 5.10.10, 5.10.11, 5.10.12, 5.10.13, 5.10.14, 5.10.15, 5.10.16, 5.10.17, 5.10.18, 5.10.19, 5.10.20, 5.10.21, 5.10.22, 5.10.23, 5.10.24, 5.10.25, 5.10.26, 5.10.27, 5.10.28, 5.10.29, 5.10.30, 5.10.31, 5.10.32, 5.10.33, 5.10.34, 5.10.35, 5.10.36, 5.10.37, 5.10.38, 5.10.39, 5.10.40, 5.10.41, 5.10.42, 5.10.43, 5.10.44, 5.10.45, 5.10.46, 5.10.47, 5.10.48, 5.10.49, 5.10.50, 5.10.51, 5.10.52, 5.10.53, 5.10.54, 5.10.55, 5.10.56, 5.10.57, 5.10.58, 5.10.59, 5.10.60, 5.10.61, 5.10.62, 5.10.63, 5.10.64, 5.10.65, 5.10.66, 5.10.67, 5.10.68, 5.10.69, 5.10.70, 5.10.71, 5.10.72, 5.10.73, 5.10.74, 5.10.75, 5.10.76, 5.10.77, 5.10.78, 5.10.79, 5.10.80, 5.10.81, 5.10.82, 5.10.83, 5.10.84, 5.10.85, 5.10.86, 5.10.87, 5.10.88, 5.10.89, 5.10.90, 5.10.91, 5.10.92, 5.10.93, 5.10.94, 5.10.95, 5.10.96, 5.10.97, 5.10.98, 5.10.99, 5.10.100, 5.10.101, 5.10.102, 5.10.103, 5.10.104, 5.10.105, 5.10.106, 5.10.107, 5.10.108, 5.10.109, 5.10.110, 5.10.111, 5.10.112, 5.10.113, 5.10.114, 5.10.115, 5.10.116, 5.10.117, 5.10.118, 5.10.119, 5.10.120, 5.10.121, 5.10.122, 5.10.123, 5.10.124, 5.10.125, 5.10.126, 5.10.127, 5.10.128, 5.10.129, 5.10.130, 5.10.131, 5.10.132, 5.10.133, 5.10.134, 5.10.135, 5.10.136, 5.10.137, 5.10.138, 5.10.139, 5.10.140, 5.10.141, 5.10.142, 5.10.143, 5.10.144, 5.10.145, 5.10.146, 5.10.147, 5.10.148, 5.10.149, 5.10.150, 5.10.151, 5.10.152, 5.10.153, 5.10.154, 5.10.155, 5.10.156, 5.10.157, 5.15, 5.15 rc1, 5.15 rc2, 5.15 rc3, 5.15 rc4, 5.15 rc5, 5.15 rc6, 5.15 rc7, 5.15.0, 5.15.1, 5.15.2, 5.15.3, 5.15.4, 5.15.5, 5.15.6, 5.15.7, 5.15.8, 5.15.9, 5.15.10, 5.15.11, 5.15.12, 5.15.13, 5.15.14, 5.15.15, 5.15.16, 5.15.17, 5.15.18, 5.15.19, 5.15.20, 5.15.21, 5.15.22, 5.15.23, 5.15.24, 5.15.25, 5.15.26, 5.15.27, 5.15.28, 5.15.29, 5.15.30, 5.15.31, 5.15.32, 5.15.33, 5.15.34, 5.15.35, 5.15.36, 5.15.37, 5.15.38, 5.15.39, 5.15.40, 5.15.41, 5.15.42, 5.15.43, 5.15.44, 5.15.45, 5.15.46, 5.15.47, 5.15.48, 5.15.49, 5.15.50, 5.15.51, 5.15.52, 5.15.53, 5.15.54, 5.15.55, 5.15.56, 5.15.57, 5.15.58, 5.15.59, 5.15.60, 5.15.61, 5.15.62, 5.15.63, 5.15.64, 5.15.65, 5.15.66, 5.15.67, 5.15.68, 5.15.69, 5.15.70, 5.15.71, 5.15.72, 5.15.73, 5.15.74, 5.15.75, 5.15.76, 5.15.77, 5.15.78, 5.15.79, 5.15.80, 5.15.81, 6.0, 6.0 rc1, 6.0 rc2, 6.0 rc3, 6.0 rc4, 6.0.1, 6.0.2, 6.0.3, 6.0.4, 6.0.5, 6.0.6, 6.0.7, 6.0.8, 6.0.9, 6.0.10, 6.0.11, 6.1 rc1, 6.1 rc3, 6.1 rc7

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External links
https://git.kernel.org/stable/c/b775f37d943966f6f77dca402f5a9dedce502c25
https://git.kernel.org/stable/c/9fc27d22cdb9b1fcd754599d216a8992fed280cd
https://git.kernel.org/stable/c/b46f6144ab89d3d757ead940759c505091626a7d
https://git.kernel.org/stable/c/45605c75c52c7ae7bfe902214343aabcfe5ba0ff
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.158
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.82
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.12
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1

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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.