#VU99119 Infinite loop in Linux kernel - CVE-2022-49006

Vulnerability identifier: #VU99119

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-2022-49006

CWE-ID: CWE-835

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 infinite loop within the probe_remove_event_call() function in kernel/trace/trace_events.c, within the dyn_event_release() and dyn_events_release_all() functions in kernel/trace/trace_dynevent.c. 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

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External links
https://git.kernel.org/stable/c/1603feac154ff38514e8354e3079a455eb4801e2
https://git.kernel.org/stable/c/be111ebd8868d4b7c041cb3c6102e1ae27d6dc1d
https://git.kernel.org/stable/c/417d5ea6e735e5d88ffb6c436cf2938f3f476dd1
https://git.kernel.org/stable/c/c52d0c8c4f38f7580cff61c4dfe1034c580cedfd
https://git.kernel.org/stable/c/4313e5a613049dfc1819a6dfb5f94cf2caff9452

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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.