CVE-2024-50267: linux kernel Use-After-Free — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: USB: serial: io_edgeport: fix use after free in debug printk The "dev_dbg(&urb->dev->dev, ..." which happens after usb_free_urb(urb) is a use after free of the "urb" pointer. Store the "dev" pointer at the start of the function to avoid this issue.

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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	3.7 — 4.19.324
linux	linux_kernel	4.20 — 5.4.286
linux	linux_kernel	5.5 — 5.10.230
linux	linux_kernel	5.11 — 5.15.172
linux	linux_kernel	5.16 — 6.1.117
linux	linux_kernel	6.2 — 6.6.61
linux	linux_kernel	6.7 — 6.11.8
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/13d6ff3ca76056d06a9d88300be2a293442ff595 https://git.kernel.org/stable/c/275258c30bbda29467216e96fb655b16bcc9992b https://git.kernel.org/stable/c/314bdf446053e123f37543aa535197ee75f8aa97 https://git.kernel.org/stable/c/37bb5628379295c1254c113a407cab03a0f4d0b4 https://git.kernel.org/stable/c/39709ce93f5c3f9eb535efe2afea088805d1128f https://git.kernel.org/stable/c/44fff2c16c5aafbdb70c7183dae0a415ae74705e https://git.kernel.org/stable/c/e567fc8f7a4460e486e52c9261b1e8b9f5dc42aa https://git.kernel.org/stable/c/e6ceb04eeb6115d872d4c4078d12f1170ed755ce

Other References

https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Frequently Asked Questions

What is CVE-2024-50267? +

In the Linux kernel, the following vulnerability has been resolved: USB: serial: io_edgeport: fix use after free in debug printk The "dev_dbg(&urb->dev->dev, ..." which happens after usb_free_urb(urb) is a use after free of the "urb" pointer. Store the "dev" pointer at the start of the function to avoid this issue. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-50267? +

CVE-2024-50267 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-2024-50267? +

CVE-2024-50267 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-2024-50267? +

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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