What’s Vulnerable › Vulnerabilities

CVE-2023-53302: wifi: iwl4965: Add missing check for create_singlethread_workqueue()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-09-16 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: iwl4965: Add missing check for create_singlethread_workqueue() Add the check for the return value of the create_singlethread_workqueue() in order to avoid NULL pointer dereference.

Affected products

• Linux kernel: from 2.6.24 before 4.19.276; from 4.20 before 5.4.235; from 5.5 before 5.10.173; from 5.11 before 5.15.99; from 5.16 before 6.1.16; from 6.2 before 6.2.3 — fixed in 4.19.276, 5.10.173, 5.15.99, 5.4.235, 6.1.16, 6.2.3

How to fix

Upgrade to a fixed version: Linux kernel 4.19.276, 5.10.173, 5.15.99, 5.4.235. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/26e6775f75517ad6844fe5b79bc5f3fa8c22ee61
• https://git.kernel.org/stable/c/2f85c768bea2057e3299d19514da9e932c4f92d2
• https://git.kernel.org/stable/c/3185d6cfc59277a77bf311dce701b7e25193f66a
• https://git.kernel.org/stable/c/874a85051cc8df8c5b928d8ff172b342cdc5424b
• https://git.kernel.org/stable/c/878a7c8357764e08bc778bcb26127fc12a4b36b7
• https://git.kernel.org/stable/c/c002d2741400771171b68dde9af937a4dfa0d1b3
• https://git.kernel.org/stable/c/f15ef0ebcf56be1d4a3c9a7a80a1f1f82ab0eaad

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