CVE-2022-49191 mxser: fix xmit_buf leak in activate when LSR == 0xff

🗓️ 26 Feb 2025 01:55:38Reported by LinuxType

Fix for xmit_buf leak in Linux kernel's mxser activate when LSR is 0xff.

Reporter	Title	Published	Views	Family All 33
AstraLinux	Astra Linux – Vulnerability in Linux 5.10, Linux	20 May 202605:53	–	astralinux
CNNVD	Linux kernel 安全漏洞	26 Feb 202500:00	–	cnnvd
CVE	CVE-2022-49191	26 Feb 202501:55	–	cve
Debian CVE	CVE-2022-49191	26 Feb 202501:55	–	debiancve
EUVD	EUVD-2022-55035	3 Oct 202520:07	–	euvd
NVD	CVE-2022-49191	26 Feb 202507:00	–	nvd
OpenVAS	SUSE: Security Advisory (SUSE-SU-2025:1293-1)	18 Apr 202500:00	–	openvas
OSV	CVE-2022-49191 mxser: fix xmit_buf leak in activate when LSR == 0xff	26 Feb 202501:55	–	osv
OSV	DEBIAN-CVE-2022-49191	26 Feb 202507:00	–	osv
OSV	SUSE-SU-2025:1293-1 Security update for the Linux Kernel	16 Apr 202507:51	–	osv

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/tty/mxser.c"
    ],
    "versions": [
      {
        "version": "6769140d304731f0a3b177470a2adb4bacd9036b",
        "lessThan": "376922045009f8ea2d20a8fa3475e95b47c41690",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6769140d304731f0a3b177470a2adb4bacd9036b",
        "lessThan": "125b7c929fc9b1e5eaa344bceb6367dfa6fd3f9d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6769140d304731f0a3b177470a2adb4bacd9036b",
        "lessThan": "685b6d16bf89595310b5d61394c9b97cc9505c7c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6769140d304731f0a3b177470a2adb4bacd9036b",
        "lessThan": "996291d06851a26678a0fab488b6e1f0677c0576",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6769140d304731f0a3b177470a2adb4bacd9036b",
        "lessThan": "2cd05c38a27bee7fb42aa4d43174d68ac55dac0f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6769140d304731f0a3b177470a2adb4bacd9036b",
        "lessThan": "b125b08dbee3611f03f53b71471813ed4ccafcdd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6769140d304731f0a3b177470a2adb4bacd9036b",
        "lessThan": "6c9041b2f90c0eace73106f22350e1d2c98f5edc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6769140d304731f0a3b177470a2adb4bacd9036b",
        "lessThan": "6dffc2035fbaada60ca8db59e0962e34f760370a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6769140d304731f0a3b177470a2adb4bacd9036b",
        "lessThan": "cd3a4907ee334b40d7aa880c7ab310b154fd5cd4",
        "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/tty/mxser.c"
    ],
    "versions": [
      {
        "version": "2.6.33",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.33",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.9.311",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.14.276",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.238",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.189",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.110",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.33",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.16.19",
        "lessThanOrEqual": "5.16.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.17.2",
        "lessThanOrEqual": "5.17.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.18",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/b125b08dbee3611f03f53b71471813ed4ccafcdd
git	www.git.kernel.org/stable/c/6c9041b2f90c0eace73106f22350e1d2c98f5edc
git	www.git.kernel.org/stable/c/6dffc2035fbaada60ca8db59e0962e34f760370a
git	www.git.kernel.org/stable/c/685b6d16bf89595310b5d61394c9b97cc9505c7c
git	www.git.kernel.org/stable/c/376922045009f8ea2d20a8fa3475e95b47c41690
git	www.git.kernel.org/stable/c/996291d06851a26678a0fab488b6e1f0677c0576
git	www.git.kernel.org/stable/c/cd3a4907ee334b40d7aa880c7ab310b154fd5cd4
git	www.git.kernel.org/stable/c/2cd05c38a27bee7fb42aa4d43174d68ac55dac0f
git	www.git.kernel.org/stable/c/125b7c929fc9b1e5eaa344bceb6367dfa6fd3f9d

11 May 2026 18:54Current

EPSS0.00011