In the Linux kernel, the following vulnerability has been resolved: net: airoha: Add missing bits in airoha_qdma_cleanup_tx_queue() Similar to… (CVE-2026-63859)
A vulnerability in the Linux kernel's airoha network driver was resolved by adding missing reset operations in the airoha_qdma_cleanup_tx_queue() function. This fix ensures that DMA TX descriptors and the TX_DMA_IDX index are properly reset, similar to the existing cleanup for RX queues. The update notifies the NIC that the QDMA TX ring is empty, addressing a potential issue in the transmission queue cleanup process.
AI Analysis
Technical Summary
The Linux kernel contained a vulnerability in the airoha network driver related to incomplete cleanup of the QDMA TX queue. Specifically, the airoha_qdma_cleanup_tx_queue() function lacked resetting of DMA TX descriptors and the TX_DMA_IDX index to TX_CPU_IDX, which is necessary to notify the NIC that the transmission queue is empty. This omission was corrected by adding these reset operations, aligning the TX queue cleanup with the RX queue cleanup process.
Potential Impact
The vulnerability could lead to improper handling of the transmission queue in the airoha network driver, potentially causing transmission issues or resource mismanagement. However, no known exploits are reported in the wild, and the exact impact severity is not detailed in the available data.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to address this issue by adding the missing reset operations in the airoha_qdma_cleanup_tx_queue() function. Users should update to the patched kernel version once available. Patch status is not explicitly confirmed in the provided data; therefore, check the official Linux kernel advisories or vendor updates for the exact fixed versions and remediation guidance.
In the Linux kernel, the following vulnerability has been resolved: net: airoha: Add missing bits in airoha_qdma_cleanup_tx_queue() Similar to… (CVE-2026-63859)
Description
A vulnerability in the Linux kernel's airoha network driver was resolved by adding missing reset operations in the airoha_qdma_cleanup_tx_queue() function. This fix ensures that DMA TX descriptors and the TX_DMA_IDX index are properly reset, similar to the existing cleanup for RX queues. The update notifies the NIC that the QDMA TX ring is empty, addressing a potential issue in the transmission queue cleanup process.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel contained a vulnerability in the airoha network driver related to incomplete cleanup of the QDMA TX queue. Specifically, the airoha_qdma_cleanup_tx_queue() function lacked resetting of DMA TX descriptors and the TX_DMA_IDX index to TX_CPU_IDX, which is necessary to notify the NIC that the transmission queue is empty. This omission was corrected by adding these reset operations, aligning the TX queue cleanup with the RX queue cleanup process.
Potential Impact
The vulnerability could lead to improper handling of the transmission queue in the airoha network driver, potentially causing transmission issues or resource mismanagement. However, no known exploits are reported in the wild, and the exact impact severity is not detailed in the available data.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to address this issue by adding the missing reset operations in the airoha_qdma_cleanup_tx_queue() function. Users should update to the patched kernel version once available. Patch status is not explicitly confirmed in the provided data; therefore, check the official Linux kernel advisories or vendor updates for the exact fixed versions and remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-w58q-3gfq-pjj2
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-63859"]
- Ecosystems
- []
- Database Specific Severity
- null
- Cvss Version
- null
Threat ID: 6a5d27ac2a4a8d598913064e
Added to database: 07/19/2026, 19:38:20 UTC
Last enriched: 07/19/2026, 20:14:54 UTC
Last updated: 07/20/2026, 08:47:12 UTC
Views: 10
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