CVE-2022-50048 Details
Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: possible module reference underflow in error path dst->ops is set on when nft_expr_clone() fails, but module refcount has not been bumped yet, therefore nft_expr_destroy() leads to module reference underflow.
A vulnerability in the Linux kernel's netfilter component, specifically within nf_tables, has been addressed. The issue involved a potential module reference underflow in the error handling path. When nft_expr_clone() failed, dst->ops was incorrectly set, leading to a situation where nft_expr_destroy() could cause a module reference underflow. This occurred because the module reference count had not been properly incremented before the error was handled.
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/1e52e6cfec6342c3d0df47dc3a76724fb3dabf56 | kernel.org | Patch |
| https://git.kernel.org/stable/c/b59bee8b05b0e789b5a298cacb09e8aaa3367a29 | kernel.org | Patch |
| https://git.kernel.org/stable/c/c485c35ff6783ccd12c160fcac6a0e504e83e0bf | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.11, < 5.15.63 >= 5.16, < 5.19.4 6.0 rc1 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 4, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Nov 13, 2025 | Initial Analysis | [email protected] |
| Jun 18, 2025 | New CVE Received | kernel.org |