CVE-2026-43435 Details
Description
In the Linux kernel, the following vulnerability has been resolved: rust_binder: fix oneway spam detection The spam detection logic in TreeRange was executed before the current request was inserted into the tree. So the new request was not being factored in the spam calculation. Fix this by moving the logic after the new range has been inserted. Also, the detection logic for ArrayRange was missing altogether which meant large spamming transactions could get away without being detected. Fix this by implementing an equivalent low_oneway_space() in ArrayRange. Note that I looked into centralizing this logic in RangeAllocator but iterating through 'state' and 'size' got a bit too complicated (for me) and I abandoned this effort.
A vulnerability related to oneway spam detection in the Rust Binder driver of the Linux kernel has been addressed. The issue arose because the spam detection logic for TreeRange was applied before the current request was added to the tree, causing the new request to be excluded from the spam calculation. This has been corrected by repositioning the logic to run after the request is inserted. Additionally, the ArrayRange detection was entirely absent, allowing large spamming transactions to go undetected. This gap has been filled by implementing a similar low_oneway_space() function for ArrayRange. The vulnerability affects the Linux kernel stable tree.
Users can apply the latest patch available in the Linux kernel stable tree to address this vulnerability.
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/4fc87c240b8f30e22b7ebaae29d57105589e1c0b | kernel.org | Patch |
| https://git.kernel.org/stable/c/8d34c993a9a156e657e43cb95186980745cc3597 | kernel.org | Patch |
| https://git.kernel.org/stable/c/edf685946c4acbe57cb96f8d5f3c07e9a2e973c8 | 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 | >= 6.18, < 6.18.19 >= 6.19, < 6.19.9 7.0 rc1 7.0 rc2 7.0 rc3 |
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 22, 2026 | Initial Analysis | [email protected] |
| May 8, 2026 | New CVE Received | kernel.org |