CVE-2026-97613
Description
In the Linux kernel, the following vulnerability has been resolved: net: mana: Reserve extra CQ slot for the fence completion CQE The RX completion queue is sized to hold exactly one CQE per posted RX WQE. MANA_FENCE_RQ makes hardware post an additional CQE_RX_OBJECT_FENCE after the packet CQEs. The current sizing reserves no extra slot for it and in rare cases, CQ has no guaranteed slot for the fence CQE when it is full of packet CQEs. This can lead to dropping the fence completion while the driver waits holding RTNL lock throughout the timeout duration. Reserve one extra CQE slot for CQE_RX_OBJECT_FENCE. mana_gd_alloc_memory() requires queue_size to be a power-of-two and at least MANA_PAGE_SIZE; the reservation pushes cq_size past a power-of-two, so round up the CQ size in mana_create_rxq().
How to fix
- Linux Linux5a41af0d906360f09527629f7d9ef4e342c58a89, f7d76b84b9206eef4320d8ab715d65f944535acf, 62eb52454afcc1d390b8624c5d1ddc92cf382f39, 1e43c407624d2111c19d4d8ffe9b2191a0ec42de, 6c739cb89ebd6cf225dac46d2721e11927a7ead4, 80dd7e754b3aa9637a0758ad93fa209f9650ec48 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 6cc74443a7732d7e93bee3d0c3704a22cc7274d9 ≤ v < 5a41af0d906360f09527629f7d9ef4e342c58a89, 6cc74443a7732d7e93bee3d0c3704a22cc7274d9 ≤ v < f7d76b84b9206eef4320d8ab715d65f944535acf, 6cc74443a7732d7e93bee3d0c3704a22cc7274d9 ≤ v < 62eb52454afcc1d390b8624c5d1ddc92cf382f39, 6cc74443a7732d7e93bee3d0c3704a22cc7274d9 ≤ v < 1e43c407624d2111c19d4d8ffe9b2191a0ec42de, 6cc74443a7732d7e93bee3d0c3704a22cc7274d9 ≤ v < 6c739cb89ebd6cf225dac46d2721e11927a7ead4, 6cc74443a7732d7e93bee3d0c3704a22cc7274d9 ≤ v < 80dd7e754b3aa9637a0758ad93fa209f9650ec48, 5.17 | 5a41af0d906360f09527629f7d9ef4e342c58a89, f7d76b84b9206eef4320d8ab715d65f944535acf, 62eb52454afcc1d390b8624c5d1ddc92cf382f39, 1e43c407624d2111c19d4d8ffe9b2191a0ec42de, 6c739cb89ebd6cf225dac46d2721e11927a7ead4, 80dd7e754b3aa9637a0758ad93fa209f9650ec48 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.