CVE-2026-43041None▾ SunlitIn 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 s…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.1%
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/
Linux >= 5fdeb0d372ab33b4175043a2a4a1730239a217f1 < f2dd9aaf6e2861337f5835f877a5b2becaf4b015Linux >= 5fdeb0d372ab33b4175043a2a4a1730239a217f1 < 4b75ff0aedd6ade1018ad4a3a9d8336794e36e42Linux >= 5fdeb0d372ab33b4175043a2a4a1730239a217f1 < ff134cc43972d7ddceff8cfd36cf6b9eaafc00b3Linux >= 5fdeb0d372ab33b4175043a2a4a1730239a217f1 < 0fda873092b541bb5a9b87d728a2429f863f8cfaLinux >= 5fdeb0d372ab33b4175043a2a4a1730239a217f1 < 69402908e277dd164bf8d7c8fd0513c0fac28e9eLinux >= 5fdeb0d372ab33b4175043a2a4a1730239a217f1 < f2664bc4f0f356f17c2094587a2b3665e3867e44Linux >= 5fdeb0d372ab33b4175043a2a4a1730239a217f1 < 5d2249eefaca59908fe3c264b8eca526424dcfbeLinux >= 5fdeb0d372ab33b4175043a2a4a1730239a217f1 < 2428083101f6883f979cceffa76cd8440751ffe6Linux 5.6Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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