{
  "cveId": "CVE-2026-80785",
  "url": "https://patchblox.com/security/cve/CVE-2026-80785",
  "summary": "CVE-2026-80785 is fixed in 13 products on 1 platform, first by DEBIAN-CVE-2026-80785, released September 5, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "fbdev: serialize mode sysfs access with lock_fb_info()",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  fbdev: serialize mode sysfs access with lock_fb_info()  show_mode(), show_modes(), and store_mode() access fb_info-\u003Emodelist and fb_info-\u003Emode without holding lock_fb_info(). store_modes() takes lock_fb_info() while replacing the modelist and freeing the old one.  A concurrent reader or writer can load a pointer to an old modelist entry before store_modes() frees it, then dereference freed memory or store a stale freed pointer in fb_info-\u003Emode.  Take lock_fb_info() in show_mode(), show_modes(), and store_mode() to serialize with store_modes(). In show_mode(), copy the mode to the stack and format after dropping the lock. In store_mode(), split activate() into a _locked variant to avoid double-locking, and hold the locks for the modelist walk, mode conversion, activation, and fb_info-\u003Emode assignment together.",
  "published": "2026-09-04T16:18:04Z",
  "severity": "Moderate",
  "cvss": 6.3,
  "epss": 0.00155,
  "epssPercentile": 0.04714,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-80785",
  "fixes": [
    {
      "platform": "linux",
      "product": "kernel-64kb",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-azure",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default",
      "release": "sles 15.6",
      "fixedVersion": "6.4.0-150600.23.138.1",
      "fix": "SUSE-SU-2026:4660-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4660-1",
      "released": "2026-11-07T00:42:08Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default-base",
      "release": "sles 15.6",
      "fixedVersion": "6.4.0-150600.23.138.1.150600.12.64.1",
      "fix": "SUSE-SU-2026:4660-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4660-1",
      "released": "2026-11-07T00:42:08Z"
    },
    {
      "platform": "linux",
      "product": "kernel-default-base",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1.150700.17.47.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-docs",
      "release": "sles 15.6",
      "fixedVersion": "6.4.0-150600.23.138.1",
      "fix": "SUSE-SU-2026:4660-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4660-1",
      "released": "2026-11-07T00:42:08Z"
    },
    {
      "platform": "linux",
      "product": "kernel-docs",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-SLE15-SP6_Update_32",
      "release": "sles 15.6",
      "fixedVersion": "1-150600.13.3.1",
      "fix": "SUSE-SU-2026:4660-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4660-1",
      "released": "2026-11-07T00:42:08Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-SLE15-SP7-RT_Update_21",
      "release": "sles 15.7",
      "fixedVersion": "1-150700.1.3.1",
      "fix": "SUSE-SU-2026:4640-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4640-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-livepatch-SLE15-SP7_Update_22",
      "release": "sles 15.7",
      "fixedVersion": "1-150700.15.3.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-obs-build",
      "release": "sles 15.6",
      "fixedVersion": "6.4.0-150600.23.138.1",
      "fix": "SUSE-SU-2026:4660-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4660-1",
      "released": "2026-11-07T00:42:08Z"
    },
    {
      "platform": "linux",
      "product": "kernel-obs-build",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-source",
      "release": "sles 15.6",
      "fixedVersion": "6.4.0-150600.23.138.1",
      "fix": "SUSE-SU-2026:4660-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4660-1",
      "released": "2026-11-07T00:42:08Z"
    },
    {
      "platform": "linux",
      "product": "kernel-source",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-syms",
      "release": "sles 15.6",
      "fixedVersion": "6.4.0-150600.23.138.1",
      "fix": "SUSE-SU-2026:4660-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4660-1",
      "released": "2026-11-07T00:42:08Z"
    },
    {
      "platform": "linux",
      "product": "kernel-syms",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "kernel-zfcpdump",
      "release": "sles 15.7",
      "fixedVersion": "6.4.0-150700.53.84.1",
      "fix": "SUSE-SU-2026:4706-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4706-1",
      "released": "2026-11-07T00:43:02Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.12-1",
      "fix": "DEBIAN-CVE-2026-80785",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-80785",
      "released": "2026-09-05T01:57:10Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T01:18:40Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}