CVE-2023-52457

HIGH
Published Feb 23, 2024 Modified Nov 21, 2024 CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: serial: 8250: omap: Don't skip resource freeing if pm_runtime_resume_and_get() failed Returning an error code from .remove() makes the driver core emit the little helpful error message: remove callback returned a non-zero value. This will be ignored. and then remove the device anyhow. So all resources that were not freed are leaked in this case. Skipping serial8250_unregister_port() has the potential to keep enough of the UART around to trigger a use-after-free. So replace the error return (and with it the little helpful error message) by a more useful error message and continue to cleanup.

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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
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/828cd829483f0cda920710997aed79130b0af690 https://git.kernel.org/stable/c/887a558d0298d36297daea039954c39940228d9b https://git.kernel.org/stable/c/95e4e0031effad9837af557ecbfd4294a4d8aeee https://git.kernel.org/stable/c/ad90d0358bd3b4554f243a425168fc7cebe7d04e https://git.kernel.org/stable/c/b502fb43f7fb55aaf07f6092ab44657595214b93 https://git.kernel.org/stable/c/bc57f3ef8a9eb0180606696f586a6dcfaa175ed0 https://git.kernel.org/stable/c/d74173bda29aba58f822175d983d07c8ed335494 https://git.kernel.org/stable/c/828cd829483f0cda920710997aed79130b0af690 https://git.kernel.org/stable/c/887a558d0298d36297daea039954c39940228d9b https://git.kernel.org/stable/c/95e4e0031effad9837af557ecbfd4294a4d8aeee https://git.kernel.org/stable/c/ad90d0358bd3b4554f243a425168fc7cebe7d04e https://git.kernel.org/stable/c/b502fb43f7fb55aaf07f6092ab44657595214b93 https://git.kernel.org/stable/c/bc57f3ef8a9eb0180606696f586a6dcfaa175ed0 https://git.kernel.org/stable/c/d74173bda29aba58f822175d983d07c8ed335494

Frequently Asked Questions

What is CVE-2023-52457? +
In the Linux kernel, the following vulnerability has been resolved: serial: 8250: omap: Don't skip resource freeing if pm_runtime_resume_and_get() failed Returning an error code from .remove() makes the driver core emit the little helpful error message: remove callback returned a non-zero value. This will be ignored. and then remove the device anyhow. So all resources that were not freed are leaked in this case. Skipping serial8250_unregister_port() has the potential to keep enough of the UART around to trigger a use-after-free. So replace the error return (and with it the little helpful error message) by a more useful error message and continue to cleanup. It has a CVSS v3.1 base score of 7.8 (HIGH).
How severe is CVE-2023-52457? +
CVE-2023-52457 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-2023-52457? +
CVE-2023-52457 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-2023-52457? +
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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