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CVE-2026-31565 RDMA/irdma: Fix deadlock during netdev reset with active connections
Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Fix deadlock during netdev reset with active connections Resolve deadlock that occurs when user executes netdev reset while RDMA applications (e.g., rping) are active. The netdev reset causes ice driver to remove irdma auxiliary driver, triggering device_delete and subsequent client removal. During client removal, uverbs_client waits for QP reference count to reach zero while cma_client holds the final reference, creating circular dependency and indefinite wait in iWARP mode. Skip QP reference count wait during device reset to prevent deadlock.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux 7.0 | earliest → < 7.0 | 7.0 |
| Linux 6.19 | earliest → < 6.19.11 | 6.19.11 |
| Linux 6.18 | earliest → < 6.18.21 | 6.18.21 |
| Linux 6.12 | earliest → < 6.12.80 | 6.12.80 |
| Linux 6.6 | earliest → < 6.6.131 | 6.6.131 |
| Linux | 6.4 | No fix stated |
| Linux 6.1 | earliest → < 6.1.168 | 6.1.168 |
| Linux 5.15 | earliest → < 5.15.203 | 5.15.203 |
| SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
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| Product | Affected versions | Fixed in |
|---|---|---|
| SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
| SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.7 → latest | No fix stated |
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