Linux Kernel up to 5.16.9 perf perf_cgroup_switch iteration

Summaryinfo

A vulnerability classified as critical was found in Linux Kernel up to 5.16.9. Impacted is the function perf_cgroup_switch of the component perf. Such manipulation leads to iteration. This vulnerability is listed as CVE-2022-48799. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.16.9. It has been rated as critical. Affected by this issue is the function perf_cgroup_switch of the component perf. The manipulation with an unknown input leads to a iteration vulnerability. Using CWE to declare the problem leads to CWE-834. The product performs an iteration or loop without sufficiently limiting the number of times that the loop is executed. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: perf: Fix list corruption in perf_cgroup_switch() There's list corruption on cgrp_cpuctx_list. This happens on the following path: perf_cgroup_switch: list_for_each_entry(cgrp_cpuctx_list) cpu_ctx_sched_in ctx_sched_in ctx_pinned_sched_in merge_sched_in perf_cgroup_event_disable: remove the event from the list Use list_for_each_entry_safe() to allow removing an entry during iteration.

The advisory is shared for download at git.kernel.org. This vulnerability is handled as CVE-2022-48799 since 07/16/2024. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 208672 (SUSE SLES12 Security Update : kernel (SUSE-SU-2024:3566-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.14.267, 4.19.230, 5.4.180, 5.10.101, 5.15.24 or 5.16.10 eliminates this vulnerability. Applying the patch 5d76ed422340/30d9f3cbe47e/a2ed7b29d067/f6b5d51976fc/7969fe91c983/2142bc1469a3/5f4e5ce638e6 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (208672). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 4.14.266
• 4.19.229
• 5.0
• 5.1
• 5.2
• 5.3
• 5.4
• 5.4.179
• 5.5
• 5.6
• 5.7
• 5.8
• 5.9
• 5.10.100
• 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
• 5.16.0
• 5.16.1
• 5.16.2
• 5.16.3
• 5.16.4
• 5.16.5
• 5.16.6
• 5.16.7
• 5.16.8
• 5.16.9

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Once again VulDB remains the best source for vulnerability data.

Discussion