CVE-2026-23164
Published: February 19, 2026Last modified: February 20, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: rocker: fix memory leak in rocker_world_port_post_fini() In rocker_world_port_pre_init(), rocker_port->wpriv is allocated with kzalloc(wops->port_priv_size, GFP_KERNEL). However, in rocker_world_port_post_fini(), the memory is only freed when wops->port_post_fini callback is set: if (!wops->port_post_fini) return; wops->port_post_fini(rocker_port); kfree(rocker_port->wpriv); Since rocker_ofdpa_ops does not implement port_post_fini callback (it is NULL), the wpriv memory allocated for each port is never freed when ports are removed. This leads to a memory leak of sizeof(struct ofdpa_port) bytes per port on every device removal. Fix this by always calling kfree(rocker_port->wpriv) regardless of whether the port_post_fini callback exists.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.163-r0) |
| 25 LTS | linux-lts | Fixed (6.12.73-r0) | |
| Stream | linux-lts | Fixed (6.12.71-r0) |
References
- https://git.kernel.org/stable/c/2a3a64d75d2d0727da285749476761ebcad557a3
- https://git.kernel.org/stable/c/8ce2e85889939c02740b4245301aa5c35fc94887
- https://git.kernel.org/stable/c/8d7ba71e46216b8657a82ca2ec118bc93812a4d0
- https://git.kernel.org/stable/c/b11e6f926480ab0939fec44781f28558c54be4e7
- https://git.kernel.org/stable/c/d448bf96889f1905e740c554780f5c9fa0440566
- https://git.kernel.org/stable/c/d8723917efda3b4f4c3de78d1ec1e1af015c0be1
- https://git.kernel.org/stable/c/dce375f4afc348c310d171abcde7ec1499a4c26a