CVE-2026-23258net: liquidio: Initialize netdev pointer before queue setup
- 5.5MediumCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 97% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 2 months later
· 2 months later
Published
- 8 months later
· 8 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 97% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected c33c997346c34ea7b89aec99524ad9632a2f1e0c – < be109646cdaecab262f6276303b1763468c94378
- affected c33c997346c34ea7b89aec99524ad9632a2f1e0c – < c81a8515fb8c8fb5d0dbc21f48337494bf1d60df
- affected c33c997346c34ea7b89aec99524ad9632a2f1e0c – < a0e57c0b68c9e6f9a8fd7c1167861a5a730eb2f4
- affected c33c997346c34ea7b89aec99524ad9632a2f1e0c – < c0ed6c77ec34050971fd0df2a94dfdea66d09331
- affected c33c997346c34ea7b89aec99524ad9632a2f1e0c – < 1d4590fde856cb94bd9a46e795c29d8288c238fc
- affected c33c997346c34ea7b89aec99524ad9632a2f1e0c – < d028147ae06407cb355245db1774793600670169
- affected c33c997346c34ea7b89aec99524ad9632a2f1e0c – < 926ede0c85e1e57c97d64d9612455267d597bb2c
- affected 4.18
- unaffected < 4.18
- unaffected 5.10.250 – ≤ 5.10.*
- unaffected 5.15.200 – ≤ 5.15.*
- unaffected 6.1.163 – ≤ 6.1.*
- unaffected 6.6.124 – ≤ 6.6.*
- unaffected 6.12.70 – ≤ 6.12.*
- unaffected 6.18.10 – ≤ 6.18.*
- unaffected 6.19 – ≤ *
References
References7
- https://git.kernel.org/stable/c/be109646cdaecab262f6276303b1763468c94378 (opens in a new tab)
- https://git.kernel.org/stable/c/c81a8515fb8c8fb5d0dbc21f48337494bf1d60df (opens in a new tab)
- https://git.kernel.org/stable/c/a0e57c0b68c9e6f9a8fd7c1167861a5a730eb2f4 (opens in a new tab)
- https://git.kernel.org/stable/c/c0ed6c77ec34050971fd0df2a94dfdea66d09331 (opens in a new tab)
- https://git.kernel.org/stable/c/1d4590fde856cb94bd9a46e795c29d8288c238fc (opens in a new tab)
- https://git.kernel.org/stable/c/d028147ae06407cb355245db1774793600670169 (opens in a new tab)
- https://git.kernel.org/stable/c/926ede0c85e1e57c97d64d9612455267d597bb2c (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-12890 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-23258)Record last updated .