CVE-2022-49714 Details
Description
In the Linux kernel, the following vulnerability has been resolved: irqchip/realtek-rtl: Fix refcount leak in map_interrupts of_find_node_by_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. This function doesn't call of_node_put() in error path. Call of_node_put() directly after of_property_read_u32() to cover both normal path and error path.
A refcount leak vulnerability has been identified in the Linux kernel's Realtek RTL IRQ chip handling. The issue arises in the 'map_interrupts_of_find_node_by_phandle()' function, which returns a node pointer with an incremented reference count. The vulnerability occurs because the function fails to decrement the reference count in the error path. To address this, 'of_node_put()' should be called immediately after 'of_property_read_u32()' to properly manage the reference count in both normal and error scenarios.
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.
CISA-ADP
Assessed Oct 1, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/e85b1b797de0e7a271b906291ce28245822820b8 | kernel.org | Patch |
| https://git.kernel.org/stable/c/eff4780f83d0ae3e5b6c02ff5d999dc4c1c5c8ce | kernel.org | Patch |
| https://git.kernel.org/stable/c/f6d6223df0666fbc054e3a8c6ac14eb0af37c286 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-Other | Weakness Not in a Standard CWE Category | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.12, < 5.15.49 >= 5.16, < 5.18.6 5.19 rc1 5.19 rc2 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Oct 1, 2025 | CVE Modified | CISA-ADP |
| Mar 11, 2025 | Initial Analysis | [email protected] |
| Feb 26, 2025 | New CVE Received | kernel.org |