net: liquidio: Initialize netdev pointer before queue setup

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-23258
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-18 18:16:24 UTC
Updated2026-05-29 18:52:01 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-401

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected c33c997346c34ea7b89aec99524ad9632a2f1e0c be109646cdaecab262f6276303b1763468c94378 git Not specified
CNA Linux Linux affected c33c997346c34ea7b89aec99524ad9632a2f1e0c c81a8515fb8c8fb5d0dbc21f48337494bf1d60df git Not specified
CNA Linux Linux affected c33c997346c34ea7b89aec99524ad9632a2f1e0c a0e57c0b68c9e6f9a8fd7c1167861a5a730eb2f4 git Not specified
CNA Linux Linux affected c33c997346c34ea7b89aec99524ad9632a2f1e0c c0ed6c77ec34050971fd0df2a94dfdea66d09331 git Not specified
CNA Linux Linux affected c33c997346c34ea7b89aec99524ad9632a2f1e0c 1d4590fde856cb94bd9a46e795c29d8288c238fc git Not specified
CNA Linux Linux affected c33c997346c34ea7b89aec99524ad9632a2f1e0c d028147ae06407cb355245db1774793600670169 git Not specified
CNA Linux Linux affected c33c997346c34ea7b89aec99524ad9632a2f1e0c 926ede0c85e1e57c97d64d9612455267d597bb2c git Not specified
CNA Linux Linux affected 4.18 Not specified
CNA Linux Linux unaffected 4.18 semver Not specified
CNA Linux Linux unaffected 5.10.250 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.200 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.163 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.124 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.70 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.10 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/be109646cdaecab262f6276303b1763468c94378 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c0ed6c77ec34050971fd0df2a94dfdea66d09331 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/926ede0c85e1e57c97d64d9612455267d597bb2c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c81a8515fb8c8fb5d0dbc21f48337494bf1d60df 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/d028147ae06407cb355245db1774793600670169 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/1d4590fde856cb94bd9a46e795c29d8288c238fc 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a0e57c0b68c9e6f9a8fd7c1167861a5a730eb2f4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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