Description
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/20260225071623.41275-1-jiayuan.chen@linux.dev/T/
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
5fdeb0d372ab33b4175043a2a4a1730239a217f1 to < f2dd9aaf6e2861337f5835f877a5b2becaf4b015affected5fdeb0d372ab33b4175043a2a4a1730239a217f1 to < 4b75ff0aedd6ade1018ad4a3a9d8336794e36e42affected5fdeb0d372ab33b4175043a2a4a1730239a217f1 to < ff134cc43972d7ddceff8cfd36cf6b9eaafc00b3affected5fdeb0d372ab33b4175043a2a4a1730239a217f1 to < 0fda873092b541bb5a9b87d728a2429f863f8cfaaffected5fdeb0d372ab33b4175043a2a4a1730239a217f1 to < 69402908e277dd164bf8d7c8fd0513c0fac28e9eaffected5fdeb0d372ab33b4175043a2a4a1730239a217f1 to < f2664bc4f0f356f17c2094587a2b3665e3867e44affected5fdeb0d372ab33b4175043a2a4a1730239a217f1 to < 5d2249eefaca59908fe3c264b8eca526424dcfbeaffected5fdeb0d372ab33b4175043a2a4a1730239a217f1 to < 2428083101f6883f979cceffa76cd8440751ffe6affected
Linux Linux
Default version status: affected
5.6affected0 to < 5.6unaffected5.10.253 to ≤ 5.10.*unaffected5.15.203 to ≤ 5.15.*unaffected6.1.168 to ≤ 6.1.*unaffected6.6.134 to ≤ 6.6.*unaffected6.12.81 to ≤ 6.12.*unaffected6.18.22 to ≤ 6.18.*unaffected6.19.12 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/f2dd9aaf6e2861337f5835f877a5b2becaf4b015 ↗
- https://git.kernel.org/stable/c/4b75ff0aedd6ade1018ad4a3a9d8336794e36e42 ↗
- https://git.kernel.org/stable/c/ff134cc43972d7ddceff8cfd36cf6b9eaafc00b3 ↗
- https://git.kernel.org/stable/c/0fda873092b541bb5a9b87d728a2429f863f8cfa ↗
- https://git.kernel.org/stable/c/69402908e277dd164bf8d7c8fd0513c0fac28e9e ↗
- https://git.kernel.org/stable/c/f2664bc4f0f356f17c2094587a2b3665e3867e44 ↗
- https://git.kernel.org/stable/c/5d2249eefaca59908fe3c264b8eca526424dcfbe ↗
- https://git.kernel.org/stable/c/2428083101f6883f979cceffa76cd8440751ffe6 ↗