{
  "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-2026-80592",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-80592",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-28T06:48:20.218Z",
    "updatedAt": "2026-08-28T06:48:20.218Z",
    "importedAt": "2026-10-24T01:58:30.346Z",
    "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": "samples/damon/mtier: fail early if address range parameters are invalid",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nsamples/damon/mtier: fail early if address range parameters are invalid\n\nThe comment on top of `struct damon_region` clearly says that\n\n    For any use case, @ar should be non-zero positive size.\n\nwhich is now verified in damon_verify_new_region() if the kernel is built\nwith DAMON_DEBUG_SANITY.\n\nThe WARN_ONCE() can be triggered if the mtier sample module is enabled\nbefore node{0,1}_{start,end}_addr have been properly initialized, which is\nobviously not good.\n\n ------------[ cut here ]------------\n start 0 >= end 0\n WARNING: mm/damon/core.c:217 at damon_new_region+0xf4/0x118, CPU#59: bash/341468\n Call trace:\n  damon_new_region+0xf4/0x118 (P)\n  damon_set_regions+0xfc/0x3c0\n  damon_sample_mtier_build_ctx+0xe8/0x3a8\n  damon_sample_mtier_start+0x1c/0x90\n  damon_sample_mtier_enable_store+0x98/0xb0\n  param_attr_store+0xb4/0x128\n  module_attr_store+0x2c/0x50\n  sysfs_kf_write+0x58/0x90\n  kernfs_fop_write_iter+0x16c/0x238\n  vfs_write+0x2c0/0x370\n  ksys_write+0x74/0x118\n  __arm64_sys_write+0x24/0x38\n  invoke_syscall+0xa8/0x118\n  el0_svc_common.constprop.0+0x48/0xf0\n  do_el0_svc+0x24/0x38\n  el0_svc+0x54/0x370\n  el0t_64_sync_handler+0xa0/0xe8\n  el0t_64_sync+0x1ac/0x1b0\n ---[ end trace 0000000000000000 ]---\n\nNote that the same issue can happen if detect_node_addresses is true, and\nnode 0 or 1 is memoryless.  Fix it together by checking the validity of\nparameters right before damon_new_region() and fail early if they're\ninvalid.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "82a08bde3cf7bbbe90de57baa181bebf676582c7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9d360fb820a3b9576d155e720ec44fef54d2efb5"
            },
            {
              "version": "82a08bde3cf7bbbe90de57baa181bebf676582c7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "db20589d7b248211f63f4a7f642a49c0832b13ae"
            },
            {
              "version": "82a08bde3cf7bbbe90de57baa181bebf676582c7",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7746d72c64054976887928d64d2caf25c5a6dcc0"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.16",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.16"
            },
            {
              "version": "6.18.40",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}