Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: macb: destroy the phylink instance on the probe error path macb_mii_init() creates a phylink instance on both of its success paths, but the probe unwind frees the netdev without destroying it, so a failing macb_alloc_tieoff() or register_netdev() leaks the instance. Destroy it at err_out_unregister_mdio, which is only reachable once macb_mii_init() has succeeded, so bp->phylink is valid there.
References
- https://git.kernel.org/stable/c/0112aa02c7847314be599d68783d50c7e228a694
- https://git.kernel.org/stable/c/23b6a44ffea1c54a4232aa86ee470b21422a8cc5
- https://git.kernel.org/stable/c/7d059f390750152b9bd69df934198651b94fc26d
- https://git.kernel.org/stable/c/8558e3195664113c14a4d8fcf221b3caff41fed1
- https://git.kernel.org/stable/c/c1de1e7b51ab2531f564b39b51998c3d71caccd7
- https://git.kernel.org/stable/c/e92a45b872b035c79acde8dd0da096a72b61ff2f
FAQ
What is CVE-2026-97973?
CVE-2026-97973 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: net: macb: destroy the phylink instance on the probe error path macb_mii_init() creates a phylink instance on both of its success ...
How severe is CVE-2026-97973?
CVSS scoring is not yet available for CVE-2026-97973. Check NVD for updates.
Is there a patch for CVE-2026-97973?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.