CVE-2022-50321 Details
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: fix potential memory leak in brcmf_netdev_start_xmit() The brcmf_netdev_start_xmit() returns NETDEV_TX_OK without freeing skb in case of pskb_expand_head() fails, add dev_kfree_skb() to fix it. Compile tested only.
A memory leak vulnerability has been identified in the Linux kernel's handling of Broadcom wireless devices, specifically within the brcmfmac driver. The issue arises in the brcmf_netdev_start_xmit() function, which fails to properly release memory under certain conditions, particularly when expanding the headroom of network packets. This oversight could potentially lead to increased memory usage and degradation of system performance.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been addressed. The specific commit that resolves this issue is 212fde3fe76e962598ce1d47b97cc78afdfc71b3.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/212fde3fe76e962598ce1d47b97cc78afdfc71b3 | kernel.org | Patch |
| https://git.kernel.org/stable/c/3a4d18318f473e97d628f410215b3fac32d07aed | kernel.org | Patch |
| https://git.kernel.org/stable/c/4c55fdebc1c358de96bfab52ed309d58a3ba66ef | kernel.org | Patch |
| https://git.kernel.org/stable/c/7f159116d620615779adbf88a5d94713702216d8 | kernel.org | Patch |
| https://git.kernel.org/stable/c/d869a189505224601e310c7769cb90b0e2f60b31 | kernel.org | Patch |
| https://git.kernel.org/stable/c/e08e6812efb6a8c676e733de0518594d1517e0d9 | kernel.org | Patch |
| https://git.kernel.org/stable/c/e5d01e85cf46628647cd696cb72ba4659b18967f | kernel.org | Patch |
| https://git.kernel.org/stable/c/e8ef89e5b89ee041a94eecfb6c31fcc237f9168c | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 4.13, < 4.14.308 >= 4.15, < 4.19.276 >= 4.20, < 5.4.235 >= 5.5, < 5.10.173 >= 5.11, < 5.15.99 >= 5.16, < 6.1.16 >= 6.2, < 6.2.3 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Dec 3, 2025 | Initial Analysis | [email protected] |
| Sep 15, 2025 | New CVE Received | kernel.org |