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CVE-2023-53587

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Sync IRQ works before buffer destruction If something was written to the buffer just before destruction, it may be…

Published Oct 4, 2025CWE-416EPSS 0.16%

Overview

CVE-2023-53587 is a high-severity vulnerability. It was published on October 4, 2025 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:

ring-buffer: Sync IRQ works before buffer destruction

If something was written to the buffer just before destruction,

it may be possible (maybe not in a real system, but it did

happen in ARCH=um with time-travel) to destroy the ringbuffer

before the IRQ work ran, leading this KASAN report (or a crash

without KASAN):

BUG: KASAN: slab-use-after-free in irq_work_run_list+0x11a/0x13a

Read of size 8 at addr 000000006d640a48 by task swapper/0

CPU: 0 PID: 0 Comm: swapper Tainted: G W O 6.3.0-rc1 #7

Stack:

60c4f20f 0c203d48 41b58ab3 60f224fc

600477fa 60f35687 60c4f20f 601273dd

00000008 6101eb00 6101eab0 615be548

Call Trace:

[<60047a58>] show_stack+0x25e/0x282

[<60c609e0>] dump_stack_lvl+0x96/0xfd

[<60c50d4c>] print_report+0x1a7/0x5a8

[<603078d3>] kasan_report+0xc1/0xe9

[<60308950>] __asan_report_load8_noabort+0x1b/0x1d

[<60232844>] irq_work_run_

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/0a65165bd24ee9231191597b7c232376fcd70cdbRefgit.kernel.org/stable/c/1c99f65d6af2a454bfd5207b4f6a97c8474a1191Refgit.kernel.org/stable/c/2399b1fda025e939b6fb1ac94505bcf718534e65Refgit.kernel.org/stable/c/2702b67f59d455072a08dc40312f9b090d4dec04Refgit.kernel.org/stable/c/372c5ee537b8366b64b691ba29e9335525e1655eRefgit.kernel.org/stable/c/675751bb20634f981498c7d66161584080cc061eRefgit.kernel.org/stable/c/c63741e872fcfb10e153517750f7908f0c00f60dRefgit.kernel.org/stable/c/d9834abd8b24d1fe8092859e436fe1e0fd467c61Refgit.kernel.org/stable/c/fc6858b7f8e1221f62ce8c6ff8a13a349c32cd76

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53587?

CVE-2023-53587 is a high-severity vulnerability. It was published on October 4, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-53587?

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-2023-53587?

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-2023-53587?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53587 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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