CVE-2024-57939

5.5 · MEDIUM

Published Jan 21, 2025 linux EPSS 0.21% (11th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-57939 is a medium-severity vulnerability affecting linux linux_kernel. It was published on January 21, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, 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:

riscv: Fix sleeping in invalid context in die()

die() can be called in exception handler, and therefore cannot sleep.

However, die() takes spinlock_t which can sleep with PREEMPT_RT enabled.

That causes the following warning:

BUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48

in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 285, name: mutex

preempt_count: 110001, expected: 0

RCU nest depth: 0, expected: 0

CPU: 0 UID: 0 PID: 285 Comm: mutex Not tainted 6.12.0-rc7-00022-ge19049cf7d56-dirty #234

Hardware name: riscv-virtio,qemu (DT)

Call Trace:

dump_backtrace+0x1c/0x24

show_stack+0x2c/0x38

dump_stack_lvl+0x5a/0x72

dump_stack+0x14/0x1c

__might_resched+0x130/0x13a

rt_spin_lock+0x2a/0x5c

die+0x24/0x112

do_trap_insn_illegal+0xa0/0xea

_new_vmalloc_restore_context_a0+0xcc/0xd8

Oops - illegal instruction [#1]

Switch to use raw_spinlock_t, which does

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. 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.

Affected Products

Vendor	Product	Versions	Status
linux	linux_kernel	>= 4.15, < 5.10.234	Affected

References

Ref git.kernel.org/stable/c/10c24df2e303f517fab0359392c11b6b1d553f2b Ref git.kernel.org/stable/c/6a97f4118ac07cfdc316433f385dbdc12af5025e Ref git.kernel.org/stable/c/76ab0afcdbe8c9685b589016ee1c0e25fe596707 Ref git.kernel.org/stable/c/8c38baa03ac8e18140faf36a3b955d30cad48e74 Ref git.kernel.org/stable/c/c21df31fc2a4afc02a6e56511364e9e793ea92ec Ref git.kernel.org/stable/c/f48f060a4b36b5e96628f6c3fb1540f1e8dedb69 Ref lists.debian.org/debian-lts-announce/2025/03/msg00001.html

Frequently Asked Questions

What is CVE-2024-57939?

CVE-2024-57939 is a medium-severity vulnerability affecting linux linux_kernel. It was published on January 21, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-57939?

This vulnerability has a CVSS 3.1 base score of 5.5, 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-2024-57939?

How can CyberStrike help with CVE-2024-57939?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-57939 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

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