CVE-2023-53039: linux kernel Use-After-Free — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: HID: intel-ish-hid: ipc: Fix potential use-after-free in work function When a reset notify IPC message is received, the ISR schedules a work function and passes the ISHTP device to it via a global pointer ishtp_dev. If ish_probe() fails, the devm-managed device resources including ishtp_dev are freed, but the work is not cancelled, causing a use-after-free when the work function tries to access ishtp_dev. Use devm_work_autocancel() instead, so that the work is automatically cancelled if probe fails.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-416 Use After Free

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.9 — 5.15.105
linux	linux_kernel	5.16 — 6.1.22
linux	linux_kernel	6.2 — 6.2.9
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/0a594cb490ca6232671fc09e2dc1a0fc7ccbb0b5 https://git.kernel.org/stable/c/8ae2f2b0a28416ed2f6d8478ac8b9f7862f36785 https://git.kernel.org/stable/c/8c1d378b8c224fd50247625255f09fc01dcc5836 https://git.kernel.org/stable/c/d3ce3afd9f791dd1b7daedfcf8c396b60af5dec0

Frequently Asked Questions

What is CVE-2023-53039? +

In the Linux kernel, the following vulnerability has been resolved: HID: intel-ish-hid: ipc: Fix potential use-after-free in work function When a reset notify IPC message is received, the ISR schedules a work function and passes the ISHTP device to it via a global pointer ishtp_dev. If ish_probe() fails, the devm-managed device resources including ishtp_dev are freed, but the work is not cancelled, causing a use-after-free when the work function tries to access ishtp_dev. Use devm_work_autocancel() instead, so that the work is automatically cancelled if probe fails. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-53039? +

CVE-2023-53039 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-53039? +

CVE-2023-53039 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-53039? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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