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CVE-2026-43123 fbcon: check return value of con2fb_acquire_newinfo()

🗓️ 06 May 2026 11:27:09Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 23 Views

Linux kernel fbcon fix: check con2fb_acquire_newinfo() return to avoid null fbcon_par dereference.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/video/fbdev/core/fbcon.c"
    ],
    "versions": [
      {
        "version": "d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e",
        "lessThan": "d3e535533767c85788529e626478718b7e95a59f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e",
        "lessThan": "3b5a754ec86bc6064af9aca76eb191c2405e6b0c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e",
        "lessThan": "a785c4e2a999c2d51dfcf40d317cfb30cc735d2c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e",
        "lessThan": "0b038c0be6827dd2dbb1ce4f8d92d97c80cbe9cc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e",
        "lessThan": "11a93180a70bb3095a9bd80d113d9277e30d9959",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e",
        "lessThan": "f57b61624c86ef8f87f6e6b7dd0755de03d90e89",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d1baa4ffa677bf6986c460fcfd4cdaf8bfe66f0e",
        "lessThan": "011a0502801c8536f64141a2b61362c14f456544",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/video/fbdev/core/fbcon.c"
    ],
    "versions": [
      {
        "version": "2.6.23",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.23",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.203",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.165",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.128",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.75",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.16",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.6",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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