CVE-2026-23258
Published: Mar 18, 2026
Modified: May 11, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: net: liquidio: Initialize netdev pointer before queue setup In setup_nic_devices(), the netdev is allocated using alloc_etherdev_mq(). However, the pointer to this structure is stored in oct->props[i].netdev only after the calls to netif_set_real_num_rx_queues() and netif_set_real_num_tx_queues(). If either of these functions fails, setup_nic_devices() returns an error without freeing the allocated netdev. Since oct->props[i].netdev is still NULL at this point, the cleanup function liquidio_destroy_nic_device() will fail to find and free the netdev, resulting in a memory leak. Fix this by initializing oct->props[i].netdev before calling the queue setup functions. This ensures that the netdev is properly accessible for cleanup in case of errors. Compile tested only. Issue found using a prototype static analysis tool and code review.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected c33c997346c34ea7b89aec99524ad9632a2f1e0c - < be109646cdaecab262f6276303b1763468c94378affected c33c997346c34ea7b89aec99524ad9632a2f1e0c - < c81a8515fb8c8fb5d0dbc21f48337494bf1d60dfaffected c33c997346c34ea7b89aec99524ad9632a2f1e0c - < a0e57c0b68c9e6f9a8fd7c1167861a5a730eb2f4affected c33c997346c34ea7b89aec99524ad9632a2f1e0c - < c0ed6c77ec34050971fd0df2a94dfdea66d09331affected c33c997346c34ea7b89aec99524ad9632a2f1e0c - < 1d4590fde856cb94bd9a46e795c29d8288c238fc+2 more versions |
Linux | Linux | affected 4.18unaffected 0 - < 4.18unaffected 5.10.250 - <= 5.10.*unaffected 5.15.200 - <= 5.15.*unaffected 6.1.163 - <= 6.1.*+4 more versions |
References
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