CVEvulnerability
CVE-2026-23164
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2026-02-14
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-401
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.
Affected configurations
• linux linux kernel (>= 4.6 < 5.10.249)
• linux linux kernel (>= 5.11 < 5.15.199)
• linux linux kernel (>= 5.16 < 6.1.162)
• linux linux kernel (>= 6.2 < 6.6.123)
• linux linux kernel (>= 6.7 < 6.12.69)
• linux linux kernel (>= 6.13 < 6.18.9)
• linux linux kernel 6.19
Related
Weakness · CWE (1)
- CWE-401 Missing Release of Memory after Effective Lifetime weakness
References
- https://git.kernel.org/stable/c/2a3a64d75d2d0727da285749476761ebcad557a3 Patch
- https://git.kernel.org/stable/c/8ce2e85889939c02740b4245301aa5c35fc94887 Patch
- https://git.kernel.org/stable/c/8d7ba71e46216b8657a82ca2ec118bc93812a4d0 Patch
- https://git.kernel.org/stable/c/b11e6f926480ab0939fec44781f28558c54be4e7 Patch
- https://git.kernel.org/stable/c/d448bf96889f1905e740c554780f5c9fa0440566 Patch
- https://git.kernel.org/stable/c/d8723917efda3b4f4c3de78d1ec1e1af015c0be1 Patch
- https://git.kernel.org/stable/c/dce375f4afc348c310d171abcde7ec1499a4c26a Patch