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CVE-2024-49866

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: tracing/timerlat: Fix a race during cpuhp processing There is another found exception that the "timerlat/1" thread was schedule…

Published Oct 21, 2024CWE-362EPSS 0.18%

Overview

CVE-2024-49866 is a high-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

tracing/timerlat: Fix a race during cpuhp processing

There is another found exception that the "timerlat/1" thread was

scheduled on CPU0, and lead to timer corruption finally:

```

ODEBUG: init active (active state 0) object: ffff888237c2e108 object type: hrtimer hint: timerlat_irq+0x0/0x220

WARNING: CPU: 0 PID: 426 at lib/debugobjects.c:518 debug_print_object+0x7d/0xb0

Modules linked in:

CPU: 0 UID: 0 PID: 426 Comm: timerlat/1 Not tainted 6.11.0-rc7+ #45

Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014

RIP: 0010:debug_print_object+0x7d/0xb0

...

Call Trace:

<TASK>

? __warn+0x7c/0x110

? debug_print_object+0x7d/0xb0

? report_bug+0xf1/0x1d0

? prb_read_valid+0x17/0x20

? handle_bug+0x3f/0x70

? exc_invalid_op+0x13/0x60

? asm_exc_invalid_op+0x16/0x20

? debug_print_object+0x7d/0xb0

? debug_print_object+0x7d/0xb0

? __pfx_timerlat_irq+0x10/0x10

__debug_object_init+0x110/0x150

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/322920b53dc11f9c2b33397eb3ae5bc6a175b60dRefgit.kernel.org/stable/c/829e0c9f0855f26b3ae830d17b24aec103f7e915Refgit.kernel.org/stable/c/a0d9c0cd5856191e095cf43a2e141b73945b7716Refgit.kernel.org/stable/c/a6e9849063a6c8f4cb2f652a437e44e3ed24356cRefgit.kernel.org/stable/c/ce25f33ba89d6eefef64157655d318444580fa14Refgit.kernel.org/stable/c/f72b451dc75578f644a3019c1489e9ae2c14e6c4Reflists.debian.org/debian-lts-announce/2025/01/msg00001.html

How CyberStrike helps

Frequently asked questions

What is CVE-2024-49866?

CVE-2024-49866 is a high-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-49866?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-49866?

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-2024-49866?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-49866 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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