[ CVE-2026-93278 · Published 24 Sep 2026 ]
Vulnerability in Linux
[ Description ]Official description
In the Linux kernel, the following vulnerability has been resolved: staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown cvm_oct_rx_shutdown calls free_irq and netif_napi_del without disabling the napi instance first. As the free_irq only waits for completion of hard interrupt handlers, the napi poll function could still be active. If cvm_oct_remove proceeds to free the plat structure (which holds the NAPI instances), the active poll function will access freed memory, resulting in a use-after-free crash.
[ 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/158389d7af04bbf0664d91c2ce31fcc9eeace1eb
- git.kernel.org/stable/c/89f9f433271fad9351de6a3c713b45b2cfb23e4a
- git.kernel.org/stable/c/98f9036b2254c928cb44da0c77dba38f66f7d8f1
- git.kernel.org/stable/c/b2243ffaac14cc3639b5b32a371aac37f96ee554
- git.kernel.org/stable/c/b38fbd68cc36b4f478a1e3cfc169b8616ae1337d
- git.kernel.org/stable/c/c0a9a8586a63fda49e61a6b83360feac2a60d898
- git.kernel.org/stable/c/c124049c3a7006fd6caf629139a5722610bbffb4