[ CVE-2026-97973 · Published 25 Sep 2026 ]
Vulnerability in Linux
[ Description ]Official 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.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ Advisories ]Government CERT advisories
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CERT-FRCERTFR-2026-AVI-1289
Multiple vulnerabilities in the Debian LTS Linux kernel Translated from French
Multiple vulnerabilities have been discovered in the Debian LTS Linux kernel. Some of them allow an attacker to cause privilege escalation, a breach of data confidentiality and denial of service.
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CERT-FRCERTFR-2026-AVI-1253
Multiple vulnerabilities in the Debian Linux kernel Translated from French
Multiple vulnerabilities have been discovered in the Debian Linux kernel. Some of them allow an attacker to cause privilege escalation, a breach of data confidentiality and denial of service.
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BSI CERT-BundWID-SEC-2026-3579
Linux Kernel: Multiple vulnerabilities Translated from German
[ References ]References
- git.kernel.org/stable/c/0112aa02c7847314be599d68783d50c7e228a694
- git.kernel.org/stable/c/23b6a44ffea1c54a4232aa86ee470b21422a8cc5
- git.kernel.org/stable/c/7d059f390750152b9bd69df934198651b94fc26d
- git.kernel.org/stable/c/8558e3195664113c14a4d8fcf221b3caff41fed1
- git.kernel.org/stable/c/c1de1e7b51ab2531f564b39b51998c3d71caccd7
- git.kernel.org/stable/c/e92a45b872b035c79acde8dd0da096a72b61ff2f