CVE-2022-49922: linux kernel — Fix

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.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-401 CWE-401

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.4 — 4.9.333
linux	linux_kernel	4.10 — 4.14.299
linux	linux_kernel	4.15 — 4.19.265
linux	linux_kernel	4.20 — 5.4.224
linux	linux_kernel	5.5 — 5.10.154
linux	linux_kernel	5.11 — 5.15.78
linux	linux_kernel	5.16 — 6.0.8
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

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

Frequently Asked Questions

What is CVE-2022-49922? +

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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49922? +

CVE-2022-49922 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2022-49922? +

CVE-2022-49922 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-2022-49922? +

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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