What’s Vulnerable › Vulnerabilities

CVE-2022-48844: Bluetooth: hci_core: Fix leaking sent_cmd skb

• 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: 2024-07-16 · updated 2026-06-17
• Weakness: CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_core: Fix leaking sent_cmd skb sent_cmd memory is not freed before freeing hci_dev causing it to leak it contents.

Affected products

• Linux kernel: before 5.15.30; from 5.16 before 5.16.16 — fixed in 5.15.30, 5.16.16

How to fix

Upgrade to a fixed version: Linux kernel 5.15.30, 5.16.16. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3679ccc09d8806686d579095ed504e045af7f7d6
• https://git.kernel.org/stable/c/9473d06bd1c8da49eafb685aa95a290290c672dd
• https://git.kernel.org/stable/c/dd3b1dc3dd050f1f47cd13e300732852414270f8
• https://git.kernel.org/stable/c/3679ccc09d8806686d579095ed504e045af7f7d6
• https://git.kernel.org/stable/c/9473d06bd1c8da49eafb685aa95a290290c672dd
• https://git.kernel.org/stable/c/dd3b1dc3dd050f1f47cd13e300732852414270f8

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