5.5

CVE-2026-23258

net: liquidio: Initialize netdev pointer before queue setup

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version >= 4.18 < 5.10.250
LinuxLinux Kernel Version >= 5.11 < 5.15.200
LinuxLinux Kernel Version >= 5.16 < 6.1.163
LinuxLinux Kernel Version >= 6.2 < 6.6.124
LinuxLinux Kernel Version >= 6.7 < 6.12.70
LinuxLinux Kernel Version >= 6.13 < 6.18.10
LinuxLinux Kernel Version6.19 Updaterc1
LinuxLinux Kernel Version6.19 Updaterc2
LinuxLinux Kernel Version6.19 Updaterc3
LinuxLinux Kernel Version6.19 Updaterc4
LinuxLinux Kernel Version6.19 Updaterc5
LinuxLinux Kernel Version6.19 Updaterc6
LinuxLinux Kernel Version6.19 Updaterc7
LinuxLinux Kernel Version6.19 Updaterc8
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.11% 0.018
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

https://git.kernel.org/stable/c/be109646cdaecab262f6276303b1763468c94378
Patch
https://git.kernel.org/stable/c/c81a8515fb8c8fb5d0dbc21f48337494bf1d60df
Patch
https://git.kernel.org/stable/c/a0e57c0b68c9e6f9a8fd7c1167861a5a730eb2f4
Patch
https://git.kernel.org/stable/c/c0ed6c77ec34050971fd0df2a94dfdea66d09331
Patch
https://git.kernel.org/stable/c/1d4590fde856cb94bd9a46e795c29d8288c238fc
Patch
https://git.kernel.org/stable/c/d028147ae06407cb355245db1774793600670169
Patch
https://git.kernel.org/stable/c/926ede0c85e1e57c97d64d9612455267d597bb2c
Patch