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CVE-2026-46272

4.7 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: coresight: tmc-etr: Fix race condition between sysfs and perf mode When trying to run perf and sysfs mode simultaneously, the W…

Published Jun 3, 2026CWE-362EPSS 0.11%

Overview

CVE-2026-46272 is a medium-severity vulnerability. It was published on June 3, 2026 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

coresight: tmc-etr: Fix race condition between sysfs and perf mode

When trying to run perf and sysfs mode simultaneously, the WARN_ON()

in tmc_etr_enable_hw() is triggered sometimes:

WARNING: CPU: 42 PID: 3911571 at drivers/hwtracing/coresight/coresight-tmc-etr.c:1060 tmc_etr_enable_hw+0xc0/0xd8 [coresight_tmc]

[..snip..]

Call trace:

tmc_etr_enable_hw+0xc0/0xd8 [coresight_tmc] (P)

tmc_enable_etr_sink+0x11c/0x250 [coresight_tmc] (L)

tmc_enable_etr_sink+0x11c/0x250 [coresight_tmc]

coresight_enable_path+0x1c8/0x218 [coresight]

coresight_enable_sysfs+0xa4/0x228 [coresight]

enable_source_store+0x58/0xa8 [coresight]

dev_attr_store+0x20/0x40

sysfs_kf_write+0x4c/0x68

kernfs_fop_write_iter+0x120/0x1b8

vfs_write+0x2c8/0x388

ksys_write+0x74/0x108

__arm64_sys_write+0x24/0x38

el0_svc_common.constprop.0+0x64/0x148

do_el0_svc+0x24/0x38

el0_svc+0x3c/0x130

el0t_64_sync_handler+0xc8/0xd0

el0t_64_s

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/38a07194bbcddb18d77dad40ba9978d994c0b74cRefgit.kernel.org/stable/c/6906aa70d4fc5900b954136e20e27c2be6d1acabRefgit.kernel.org/stable/c/e6e43e82c79c97917cbe356c07e8a6f3f982ab53

How CyberStrike helps

Frequently asked questions

What is CVE-2026-46272?

CVE-2026-46272 is a medium-severity vulnerability. It was published on June 3, 2026 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2026-46272?

This vulnerability has a CVSS 3.1 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-46272?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-46272?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-46272 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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