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[ CVE-2026-93802 · Published 24 Sep 2026 ]

Vulnerability in Linux

Not scored yet EPSS <1%3 agency advisoriesNo fix listed yet

[ Description ]Official description

In the Linux kernel, the following vulnerability has been resolved: wifi: rsi: validate beacon length before fixed buffer copy rsi_prepare_beacon() copies the mac80211 beacon frame after FRAME_DESC_SZ into a management skb whose usable tailroom may be smaller than MAX_MGMT_PKT_SIZE after alignment. Validate the beacon length against the actual tailroom before the copy and skb_put(). Leave ownership of the management skb with the caller on error, matching the existing rsi_send_beacon() cleanup path.

[ 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

  • 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.

    CVE-2025-38237CVE-2025-39833CVE-2025-39925+1311 more CVEs
  • 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.

    CVE-2025-38237CVE-2025-39833CVE-2025-39925+1310 more CVEs
  • BSI CERT-BundWID-SEC-2026-3579

    Linux Kernel: Multiple vulnerabilities Translated from German

    CVE-2026-97615CVE-2026-97978CVE-2026-98127+590 more CVEs

[ References ]References