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CVE-2022-49441 tty: fix deadlock caused by calling printk() under tty_port->lock

🗓️ 26 Feb 2025 02:12:54Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 10 Views

Fixed deadlock issue in Linux kernel by avoiding printk() under tty_port->lock during kmalloc().

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/tty/tty_buffer.c"
    ],
    "versions": [
      {
        "version": "d83904cb2eb2c4d937eaf15032214b0578f25099",
        "lessThan": "4af21b12a60ed2d3642284f4f85b42d7dc6ac246",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "deb1feaad03a78b545c949e54582ae57b3c56982",
        "lessThan": "4c253caf9264d2aa47ee806a87986dd8eb91a5d9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b6da31b2c07c46f2dcad1d86caa835227a16d9ff",
        "lessThan": "04ee31678c128a6cc7bb057ea189a8624ba5a314",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b6da31b2c07c46f2dcad1d86caa835227a16d9ff",
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        "status": "affected",
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      },
      {
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        "status": "affected",
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      },
      {
        "version": "b6da31b2c07c46f2dcad1d86caa835227a16d9ff",
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        "status": "affected",
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      },
      {
        "version": "b6da31b2c07c46f2dcad1d86caa835227a16d9ff",
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      },
      {
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        "versionType": "git"
      },
      {
        "version": "b6da31b2c07c46f2dcad1d86caa835227a16d9ff",
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      },
      {
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      },
      {
        "version": "6dbfa9b5ae65063cd61dc7fa11332e00bb794d8b",
        "status": "affected",
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      },
      {
        "version": "60c4e8db32815474bfaeabe888ebb14e698caea1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4.9.117",
        "lessThan": "4.9.318",
        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "4.14.60",
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        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "3.18.118",
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        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "4.4.146",
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        "status": "affected",
        "versionType": "semver"
      },
      {
        "version": "4.17.12",
        "lessThan": "4.18",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/tty/tty_buffer.c"
    ],
    "versions": [
      {
        "version": "4.18",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.18",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.9.318",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.14.283",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.247",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.198",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.121",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.46",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.17.14",
        "lessThanOrEqual": "5.17.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.18.3",
        "lessThanOrEqual": "5.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.19",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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23 May 2026 15:22Current
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