Answer in brief
CVE-2026-43041 records a Unknown severity vulnerability in net: qrtr: replace qrtr_tx_flow radix_tree with xarray to fix memory leak. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=5fdeb0d372ab33b4175043a2a4a1730239a217f1 <f2dd9aaf6e2861337f5835f877a5b2becaf4b015 || >=5fdeb0d372ab33b4175043a2a4a1730239a217f1 <4b75ff0aedd6ade1018ad4a3a9d8336794e36e42 || >=5fdeb0d372ab33b4175043a2a4a1730239a217f1 <ff134cc43972d7ddceff8cfd36cf6b9eaafc00b3 || >=5fdeb0d372ab33b4175043a2a4a1730239a217f1 <0fda873092b541bb5a9b87d728a2429f863f8cfa || >=5fdeb0d372ab33b4175043a2a4a1730239a217f1 <69402908e277dd164bf8d7c8fd0513c0fac28e9e || >=5fdeb0d372ab33b4175043a2a4a1730239a217f1 <f2664bc4f0f356f17c2094587a2b3665e3867e44 || >=5fdeb0d372ab33b4175043a2a4a1730239a217f1 <5d2249eefaca59908fe3c264b8eca526424dcfbe || >=5fdeb0d372ab33b4175043a2a4a1730239a217f1 <2428083101f6883f979cceffa76cd8440751ffe6 | f2dd9aaf6e2861337f5835f877a5b2becaf4b015, 4b75ff0aedd6ade1018ad4a3a9d8336794e36e42, ff134cc43972d7ddceff8cfd36cf6b9eaafc00b3, 0fda873092b541bb5a9b87d728a2429f863f8cfa, 69402908e277dd164bf8d7c8fd0513c0fac28e9e, f2664bc4f0f356f17c2094587a2b3665e3867e44, 5d2249eefaca59908fe3c264b8eca526424dcfbe, 2428083101f6883f979cceffa76cd8440751ffe6 |
| Linux/Linuxgeneric | 5.6 | Not reported |
Published upstream
May 1, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 6, 2026
In the Linux kernel, the following vulnerability has been resolved: net: qrtr: replace qrtr_tx_flow radix_tree with xarray to fix memory leak __radix_tree_create() allocates and links intermediate nodes into the tree one by one. If a subsequent allocation fails, the already-linked nodes remain in the tree with no corresponding leaf entry. These orphaned internal nodes are never reclaimed because radix_tree_for_each_slot() only visits slots containing leaf values. The radix_tree API is deprecated in favor of xarray. As suggested by Matthew Wilcox, migrate qrtr_tx_flow from radix_tree to xarray instead of fixing the radix_tree itself [1]. xarray properly handles cleanup of internal nodes — xa_destroy() frees all internal xarray nodes when the qrtr_node is released, preventing the leak. [1] https://lore.kernel.org/all/[email protected]/T/
Quoted source text, attributed separately from HOL analysis.