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CVE-2026-63949 auxdisplay: line-display: fix OOB read on zero-length message_store()

🗓️ 19 Jul 2026 14:55:42Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 48 Views

Fix out-of-bounds read in auxdisplay line-display when writing zero bytes to the message store.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-63949
19 Jul 202614:55
cve
debiancve
Debian CVE
CVE-2026-63949
19 Jul 202614:55
debiancve
euvd
EUVD
EUVD-2026-45722
19 Jul 202614:55
euvd
nvd
NVD
CVE-2026-63949
19 Jul 202616:17
nvd
osv
OSV
BELL-CVE-2026-63949
22 Jul 202606:05
osv
osv
OSV
DEBIAN-CVE-2026-63949
19 Jul 202616:17
osv
osv
OSV
UBUNTU-CVE-2026-63949
20 Jul 202600:00
osv
osv
OSV
USN-8593-1 linux-ibm, linux-oracle vulnerabilities
23 Jul 202607:35
osv
osv
OSV
USN-8603-1 linux-azure, linux-azure-fde vulnerabilities
24 Jul 202609:51
osv
osv
OSV
USN-8618-1 linux-aws, linux-raspi vulnerabilities
28 Jul 202607:16
osv
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/auxdisplay/line-display.c"
    ],
    "versions": [
      {
        "version": "7e76aece6f036cb7ada4858d6aa73825bfe22983",
        "lessThan": "ca5b0781946d5083ceafa752141f47f085853620",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7e76aece6f036cb7ada4858d6aa73825bfe22983",
        "lessThan": "8776032fe989a9b5fc77f2de5e03e4adb44c630e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7e76aece6f036cb7ada4858d6aa73825bfe22983",
        "lessThan": "3859960daeb9b7b39b9847b5b0113bc6081eb735",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7e76aece6f036cb7ada4858d6aa73825bfe22983",
        "lessThan": "197476b126010bac1b3199833c6966cd6f54c2a9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7e76aece6f036cb7ada4858d6aa73825bfe22983",
        "lessThan": "6ad4f75ef9f3372fce8cad494e789ac6a5507bef",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7e76aece6f036cb7ada4858d6aa73825bfe22983",
        "lessThan": "a7511dcd9dd4bc55d123f9b800c8a4ed2662e5c6",
        "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/auxdisplay/line-display.c"
    ],
    "versions": [
      {
        "version": "5.16",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.16",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.176",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.143",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.93",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.35",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.12",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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