Medium 5.5Published Feb 14, 2026

CVE-2026-23164rocker: fix memory leak in rocker_world_port_post_fini()

Updated under an hour ago (Oct 27, 2026, 5:50 PM ET)

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Exploited in the last 30 days

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.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): CWE-401
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from e420114eef4a3a5025a243b89b0dc343101e3d3c before 2a3a64d75d2d0727da285749476761ebcad557a3; from e420114eef4a3a5025a243b89b0dc343101e3d3c before b11e6f926480ab0939fec44781f28558c54be4e7; from e420114eef4a3a5025a243b89b0dc343101e3d3c before 8ce2e85889939c02740b4245301aa5c35fc94887; from e420114eef4a3a5025a243b89b0dc343101e3d3c before d448bf96889f1905e740c554780f5c9fa0440566; from e420114eef4a3a5025a243b89b0dc343101e3d3c before d8723917efda3b4f4c3de78d1ec1e1af015c0be1; from e420114eef4a3a5025a243b89b0dc343101e3d3c before dce375f4afc348c310d171abcde7ec1499a4c26a; from e420114eef4a3a5025a243b89b0dc343101e3d3c before 8d7ba71e46216b8657a82ca2ec118bc93812a4d0	CNA record
linux linux_kernel linux:linux_kernel	from 4.6 before 5.10.249; from 5.11 before 5.15.199; from 5.16 before 6.1.162; from 6.2 before 6.6.123; from 6.7 before 6.12.69; from 6.13 before 6.18.9; 6.19; 6.19; and 5 more ranges	NVD

References

References

https://git.kernel.org/stable/c/2a3a64d75d2d0727da285749476761ebcad557a3	patch
https://git.kernel.org/stable/c/b11e6f926480ab0939fec44781f28558c54be4e7	patch
https://git.kernel.org/stable/c/8ce2e85889939c02740b4245301aa5c35fc94887	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
https://git.kernel.org/stable/c/8d7ba71e46216b8657a82ca2ec118bc93812a4d0	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.