{
  "cveId": "CVE-2026-98406",
  "url": "https://patchblox.com/security/cve/CVE-2026-98406",
  "summary": "CVE-2026-98406 is fixed in 31 products on 1 platform, first by DEBIAN-CVE-2026-98406, released October 16, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "wifi: mac80211: avoid WARN in set_bitrate_mask when sdata not in driver",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  wifi: mac80211: avoid WARN in set_bitrate_mask when sdata not in driver  ieee80211_set_bitrate_mask() checks if the interface is running via ieee80211_sdata_running(), but it does not check if the interface is still present in the driver.  When sdata is running but IEEE80211_SDATA_IN_DRIVER is not set, the call reaches drv_set_bitrate_mask() in driver-ops.h which hits    wlan1: Failed check-sdata-in-driver check, flags: 0x0   WARNING: net/mac80211/driver-ops.h:884 at drv_set_bitrate_mask  Syzkaller triggers this via wext SIOCSIWRATE ioctl. The Call Trace shows wext_ioctl_dispatch() in wext-core.c dispatching the ioctl, calling ioctl_standard_call() for SIOCSIWRATE, which calls cfg80211_wext_siwrate() in wext-compat.c. That builds a bitrate mask and calls rdev_set_bitrate_mask() which ends up in ieee80211_set_bitrate_mask() in cfg.c. The interface is marked running via SDATA_STATE_RUNNING but flags is 0, so check_sdata_in_driver() fails.  When the interface is being torn down, or when wext ioctl is issued during interface bringup before drv_add_interface() sets IN_DRIVER, the running check passes while IN_DRIVER is clear.  Check IEEE80211_SDATA_IN_DRIVER in ieee80211_set_bitrate_mask() before calling the driver, returning -ENETDOWN. This avoids the WARN_ONCE in driver-ops.h and matches other cfg.c operations that bail early when not in driver.  This change should be safe because wiphy mutex is held in cfg80211_wext_siwrate() via guard(wiphy), and IN_DRIVER is set/cleared under RTNL and wiphy paths in drv_add_interface() and drv_remove_interface() in driver-ops.c, so the check is race-free against driver add/remove. Returning -ENETDOWN is the same error other not-running paths use and does not introduce new locking.  [also add second syzbot report]",
  "published": "2026-10-14T14:17:51Z",
  "severity": "Low",
  "cvss": 2.5,
  "epss": 0.00216,
  "epssPercentile": 0.12157,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98406",
  "fixes": [
    {
      "platform": "linux",
      "product": "bpftool",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "bpftool",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.90.1",
      "fix": "SUSE-SU-2026:5091-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-5091-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-azure",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.90.1",
      "fix": "SUSE-SU-2026:5091-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-5091-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.90.1",
      "fix": "SUSE-SU-2026:5091-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-5091-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default-base",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.90.1.150700.17.51.1",
      "fix": "SUSE-SU-2026:5091-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-5091-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-docs",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.90.1",
      "fix": "SUSE-SU-2026:5091-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-5091-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-SLE15-SP7_Update_24",
      "release": "sles 15.7",
      "fixedVersion": "1-150700.15.3.1",
      "fix": "SUSE-SU-2026:5091-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-5091-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-obs-build",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.90.1",
      "fix": "SUSE-SU-2026:5091-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-5091-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-source",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.90.1",
      "fix": "SUSE-SU-2026:5091-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-5091-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-syms",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.90.1",
      "fix": "SUSE-SU-2026:5091-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-5091-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-container",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-container",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-container-debug",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-container-debug",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-core",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-core",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-debug",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-debug",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-debug-core",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-debug-core",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-debug-devel",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-debug-devel",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-debug-modules",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-debug-modules",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-debug-modules-extra",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-debug-modules-extra",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-devel",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-devel",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-doc",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-doc",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-modules",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-modules",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-modules-extra",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek-modules-extra",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek64k",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek64k",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek64k-core",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek64k-core",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek64k-devel",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek64k-devel",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek64k-modules",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek64k-modules",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek64k-modules-extra",
      "release": "ol 8",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-uek64k-modules-extra",
      "release": "ol 9",
      "fixedVersion": "0:5.15.0-326.222.4.el9uek",
      "fix": "ELSA-2026-500574",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-500574",
      "released": "2026-11-07T00:48:28Z"
    },
    {
      "platform": "linux",
      "product": "kernel-zfcpdump",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.90.1",
      "fix": "SUSE-SU-2026:5091-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-5091-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.1.190-1",
      "fix": "DEBIAN-CVE-2026-98406",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98406",
      "released": "2026-10-16T15:52:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.113-1",
      "fix": "DEBIAN-CVE-2026-98406",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98406",
      "released": "2026-10-16T15:52:00Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.8-1",
      "fix": "DEBIAN-CVE-2026-98406",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98406",
      "released": "2026-10-16T15:52:00Z"
    },
    {
      "platform": "linux",
      "product": "linux-6.12",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.12.113-1~deb12u1",
      "fix": "DEBIAN-CVE-2026-98406",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98406",
      "released": "2026-10-16T15:52:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}