SB2026032095 - Missing release of memory after effective lifetime in Linux kernel cavium liquidio driver
Published: March 20, 2026
Security Bulletin ID
SB2026032095
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Missing release of memory after effective lifetime (CVE-ID: CVE-2026-23258)
The vulnerability allows a local user to cause a memory leak.
The vulnerability exists due to improper memory management in the net: liquidio component when initializing network devices. A local user can trigger a failure during queue setup to cause a memory leak.
The issue occurs because the netdev pointer is not initialized before calling netif_set_real_num_rx_queues() and netif_set_real_num_tx_queues(), leading to failure in freeing the allocated netdev on error paths.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/1d4590fde856cb94bd9a46e795c29d8288c238fc
- https://git.kernel.org/stable/c/926ede0c85e1e57c97d64d9612455267d597bb2c
- https://git.kernel.org/stable/c/a0e57c0b68c9e6f9a8fd7c1167861a5a730eb2f4
- https://git.kernel.org/stable/c/be109646cdaecab262f6276303b1763468c94378
- https://git.kernel.org/stable/c/c0ed6c77ec34050971fd0df2a94dfdea66d09331
- https://git.kernel.org/stable/c/c81a8515fb8c8fb5d0dbc21f48337494bf1d60df
- https://git.kernel.org/stable/c/d028147ae06407cb355245db1774793600670169