CVE-2026-43157 Details
Description
In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: CGX: fix bitmap leaks The RX/TX flow-control bitmaps (rx_fc_pfvf_bmap and tx_fc_pfvf_bmap) are allocated by cgx_lmac_init() but never freed in cgx_lmac_exit(). Unbinding and rebinding the driver therefore triggers kmemleak: unreferenced object (size 16): backtrace: rvu_alloc_bitmap cgx_probe Free both bitmaps during teardown.
A memory leak vulnerability has been identified in the Linux kernel's OcteonTX2 AF CGX driver. The issue arises because the RX and TX flow-control bitmaps, allocated during the initialization phase, are not properly freed during cleanup. This oversight leads to unreferenced objects that can be detected by memory management tools, indicating a resource leak that could potentially be exploited.
The vulnerability has been addressed in the Linux kernel. Users can apply the latest patches available in the Linux kernel stable tree to remediate this issue.
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/013ac469596a0b8671e62d89c89ae0bd46bbe667 | kernel.org | Patch |
| https://git.kernel.org/stable/c/3def995c4ede842adf509c410e92d09a0cedc965 | kernel.org | Patch |
| https://git.kernel.org/stable/c/6d389382ee655128056fbdab86baad8495ffbf33 | kernel.org | Patch |
| https://git.kernel.org/stable/c/ad8a13a45c5c24d0d32de9a1c3fd58498a675ece | kernel.org | Patch |
| https://git.kernel.org/stable/c/ccca14bbdcc25829d355b9f4d3249f43dadb71c1 | kernel.org | Patch |
| https://git.kernel.org/stable/c/ccef79af58b43787c25710c9da96651c6ddfe50f | 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 | >= 5.18, < 6.1.165 >= 6.2, < 6.6.128 >= 6.7, < 6.12.75 >= 6.13, < 6.18.16 >= 6.19, < 6.19.6 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 13, 2026 | Initial Analysis | [email protected] |
| May 6, 2026 | New CVE Received | kernel.org |