{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2022-50159",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50159",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-06-18T11:03:15.826Z",
    "updatedAt": "2026-05-11T19:13:56.896Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "of: check previous kernel's ima-kexec-buffer against memory bounds",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nof: check previous kernel's ima-kexec-buffer against memory bounds\n\nPresently ima_get_kexec_buffer() doesn't check if the previous kernel's\nima-kexec-buffer lies outside the addressable memory range. This can result\nin a kernel panic if the new kernel is booted with 'mem=X' arg and the\nima-kexec-buffer was allocated beyond that range by the previous kernel.\nThe panic is usually of the form below:\n\n$ sudo kexec --initrd initrd vmlinux --append='mem=16G'\n\n<snip>\n BUG: Unable to handle kernel data access on read at 0xc000c01fff7f0000\n Faulting instruction address: 0xc000000000837974\n Oops: Kernel access of bad area, sig: 11 [#1]\n<snip>\n NIP [c000000000837974] ima_restore_measurement_list+0x94/0x6c0\n LR [c00000000083b55c] ima_load_kexec_buffer+0xac/0x160\n Call Trace:\n [c00000000371fa80] [c00000000083b55c] ima_load_kexec_buffer+0xac/0x160\n [c00000000371fb00] [c0000000020512c4] ima_init+0x80/0x108\n [c00000000371fb70] [c0000000020514dc] init_ima+0x4c/0x120\n [c00000000371fbf0] [c000000000012240] do_one_initcall+0x60/0x2c0\n [c00000000371fcc0] [c000000002004ad0] kernel_init_freeable+0x344/0x3ec\n [c00000000371fda0] [c0000000000128a4] kernel_init+0x34/0x1b0\n [c00000000371fe10] [c00000000000ce64] ret_from_kernel_thread+0x5c/0x64\n Instruction dump:\n f92100b8 f92100c0 90e10090 910100a0 4182050c 282a0017 3bc00000 40810330\n 7c0802a6 fb610198 7c9b2378 f80101d0 <a1240000> 2c090001 40820614 e9240010\n ---[ end trace 0000000000000000 ]---\n\nFix this issue by checking returned PFN range of previous kernel's\nima-kexec-buffer with page_is_ram() to ensure correct memory bounds.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "467d27824920e866af148132f555d40ca1fb199e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "beb5bba5dd132650c073f815c685c60c3e5b783b"
            },
            {
              "version": "467d27824920e866af148132f555d40ca1fb199e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dc3b8525f83ac6bbc885bb24bbb8a76f4622200e"
            },
            {
              "version": "467d27824920e866af148132f555d40ca1fb199e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1b2263d6c86fca8f30e18231778393bfc287bb27"
            },
            {
              "version": "467d27824920e866af148132f555d40ca1fb199e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cbf9c4b9617b6767886a913705ca14b7600c77db"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.10",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.10"
            },
            {
              "version": "5.15.61",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.18.18",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.18.*"
            },
            {
              "version": "5.19.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.19.*"
            },
            {
              "version": "6.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}