What’s Vulnerable › Vulnerabilities

CVE-2022-49922: nfc: nfcmrvl: Fix potential memory leak in nfcmrvl_i2c_nci_send()

• 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: 2025-05-01 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: nfc: nfcmrvl: Fix potential memory leak in nfcmrvl_i2c_nci_send() nfcmrvl_i2c_nci_send() will be called by nfcmrvl_nci_send(), and skb should be freed in nfcmrvl_i2c_nci_send(). However, nfcmrvl_nci_send() will only free skb when i2c_master_send() return >=0, which means skb will memleak when i2c_master_send() failed. Free skb no matter whether i2c_master_send() succeeds.

Affected products

• Linux kernel: from 4.4 before 4.9.333; from 4.10 before 4.14.299; from 4.15 before 4.19.265; from 4.20 before 5.4.224; from 5.5 before 5.10.154; from 5.11 before 5.15.78 — fixed in 4.14.299, 4.19.265, 4.9.333, 5.10.154, 5.15.78, 5.4.224

How to fix

Upgrade to a fixed version: Linux kernel 4.14.299, 4.19.265, 4.9.333, 5.10.154. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/52438e734c1566f5e2bcd9a065d2d65e306c0555
• https://git.kernel.org/stable/c/5dfdac5e3f8db5f4445228c44f64091045644a3b
• https://git.kernel.org/stable/c/825656ae61e73ddc05f585e6258d284c87064b10
• https://git.kernel.org/stable/c/92a1df9c6da20c02cf9872f8b025a66ddb307aeb
• https://git.kernel.org/stable/c/93d904a734a74c54d945a9884b4962977f1176cd
• https://git.kernel.org/stable/c/c8e7d4a1166f063703955f1b2e765a6db5bf1771
• https://git.kernel.org/stable/c/dd0ee55ead91fbb16889dbe7ff0b0f7c9e4e849d
• https://git.kernel.org/stable/c/f30060efcf18883748a0541aa41acef183cd9c0e

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