CVE-2023-53308: linux kernel Double Free — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: net: fec: Better handle pm_runtime_get() failing in .remove() In the (unlikely) event that pm_runtime_get() (disguised as pm_runtime_resume_and_get()) fails, the remove callback returned an error early. The problem with this is that the driver core ignores the error value and continues removing the device. This results in a resource leak. Worse the devm allocated resources are freed and so if a callback of the driver is called later the register mapping is already gone which probably results in a crash.

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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-415 CWE-415

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.9.206 — 4.10
linux	linux_kernel	4.14.158 — 4.14.316
linux	linux_kernel	4.19.88 — 4.19.284
linux	linux_kernel	5.3.15 — 5.4
linux	linux_kernel	5.4.1 — 5.4.244
linux	linux_kernel	5.5 — 5.10.181
linux	linux_kernel	5.11 — 5.15.113
linux	linux_kernel	5.16 — 6.1.30
linux	linux_kernel	6.2 — 6.3.4
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/83996d317b1deddc85006376082e8886f55aa709 https://git.kernel.org/stable/c/9407454a9b18bbeff216e8ecde87ffb2171e9ccf https://git.kernel.org/stable/c/b22b514209ff8c4287abb853399890ab97e1b5ca https://git.kernel.org/stable/c/be85912c36ddca3e8b2eef1b5392cd8db6bdb730 https://git.kernel.org/stable/c/c1bc2870f14e526a01897e14c747a0a0ca125231 https://git.kernel.org/stable/c/d52a0cca591e899d4e5c8ab19e067b4c6b7d104f https://git.kernel.org/stable/c/e02d8d5b1602689b98d9b91550a11b9b57baedbe https://git.kernel.org/stable/c/f816b9829b19394d318e01953aa3b2721bca040d

Frequently Asked Questions

What is CVE-2023-53308? +

In the Linux kernel, the following vulnerability has been resolved: net: fec: Better handle pm_runtime_get() failing in .remove() In the (unlikely) event that pm_runtime_get() (disguised as pm_runtime_resume_and_get()) fails, the remove callback returned an error early. The problem with this is that the driver core ignores the error value and continues removing the device. This results in a resource leak. Worse the devm allocated resources are freed and so if a callback of the driver is called later the register mapping is already gone which probably results in a crash. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-53308? +

CVE-2023-53308 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-2023-53308? +

CVE-2023-53308 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-2023-53308? +

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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