What’s Vulnerable › Vulnerabilities

CVE-2026-23021: net: usb: pegasus: fix memory leak in update_eth_regs_async()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-31 · updated 2026-10-19
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: net: usb: pegasus: fix memory leak in update_eth_regs_async() When asynchronously writing to the device registers and if usb_submit_urb() fail, the code fail to release allocated to this point resources.

Affected products

• Linux kernel: from 3.10.1 before 5.10.248; from 5.11 before 5.15.198; from 5.16 before 6.1.161; from 6.2 before 6.6.121; from 6.7 before 6.12.66; from 6.13 before 6.18.6 — fixed in 5.10.248, 5.15.198, 6.1.161, 6.12.66, 6.18.6, 6.6.121

How to fix

Upgrade to a fixed version: Linux kernel 5.10.248, 5.15.198, 6.1.161, 6.12.66. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/471dfb97599eec74e0476046b3ef8e7037f27b34
• https://git.kernel.org/stable/c/5397ea6d21c35a17707e201a60761bdee00bcc4e
• https://git.kernel.org/stable/c/93f18eaa190374e0f2d253e3b1a65cee19a7abe6
• https://git.kernel.org/stable/c/a40af9a2904a1ab8ce61866ebe2a894ef30754ba
• https://git.kernel.org/stable/c/ac5d92d2826dec51e5d4c6854865bc5817277452
• https://git.kernel.org/stable/c/afa27621a28af317523e0836dad430bec551eb54
• https://git.kernel.org/stable/c/ce6eef731aba23a988decea1df3b08cf978f7b01

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