{
  "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-2026-53158",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-53158",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-25T08:38:40.818Z",
    "updatedAt": "2026-07-04T11:50:56.161Z",
    "importedAt": "2026-10-24T01:58:20.586Z",
    "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": "misc: fastrpc: Fix NULL pointer dereference in rpmsg callback",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: fastrpc: Fix NULL pointer dereference in rpmsg callback\n\nA NULL pointer dereference was observed on Hawi at boot when the DSP\nsends a glink message before fastrpc_rpmsg_probe() has completed\ninitialization:\n\n  Unable to handle kernel NULL pointer dereference at virtual address 0000000000000178\n  pc : _raw_spin_lock_irqsave+0x34/0x8c\n  lr : fastrpc_rpmsg_callback+0x3c/0xcc [fastrpc]\n  ...\n  Call trace:\n   _raw_spin_lock_irqsave+0x34/0x8c (P)\n   fastrpc_rpmsg_callback+0x3c/0xcc [fastrpc]\n   qcom_glink_native_rx+0x538/0x6a4\n   qcom_glink_smem_intr+0x14/0x24 [qcom_glink_smem]\n\nThe faulting address 0x178 corresponds to the lock variable inside\nstruct fastrpc_channel_ctx, confirming that cctx is NULL when\nfastrpc_rpmsg_callback() attempts to take the spinlock.\n\nThere are two issues here. First, dev_set_drvdata() is called before\nspin_lock_init() and idr_init(), leaving a window where the callback\ncan retrieve a valid cctx pointer but operate on an uninitialized\nspinlock. Second, the rpmsg channel becomes live as soon as the driver\nis bound, so fastrpc_rpmsg_callback() can fire before dev_set_drvdata()\nis called at all, resulting in dev_get_drvdata() returning NULL.\n\nFix both issues by moving all cctx initialization ahead of\ndev_set_drvdata() so the structure is fully initialized before it\nbecomes visible to the callback, and add a NULL check in\nfastrpc_rpmsg_callback() as a guard against any remaining window.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "f6f9279f2bf0e37e2f1fb119d8832b8568536a04",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a3d91218ccca1e990bfb737b5a6da23f0afba22b"
            },
            {
              "version": "f6f9279f2bf0e37e2f1fb119d8832b8568536a04",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0d8c64511fd45690c5326f013710efcb4f73a97e"
            },
            {
              "version": "f6f9279f2bf0e37e2f1fb119d8832b8568536a04",
              "status": "affected",
              "versionType": "git",
              "lessThan": "150bf6f1193c69252580c19d3b3cd631ddce61d7"
            },
            {
              "version": "f6f9279f2bf0e37e2f1fb119d8832b8568536a04",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8fb4a23df5b7c02929b62e5dbc270ec7c42b8134"
            },
            {
              "version": "f6f9279f2bf0e37e2f1fb119d8832b8568536a04",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4bfdf0a9855df55e9e031ca6a25b855820590c70"
            },
            {
              "version": "f6f9279f2bf0e37e2f1fb119d8832b8568536a04",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d5de9cb5355db36438edc621dde3673e3f235767"
            },
            {
              "version": "f6f9279f2bf0e37e2f1fb119d8832b8568536a04",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d77583ca33299fede0c194744ef2284e7ba5b763"
            },
            {
              "version": "f6f9279f2bf0e37e2f1fb119d8832b8568536a04",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5401fb4fe10fac6134c308495df18ed74aebb9c4"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.1",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.1"
            },
            {
              "version": "5.10.260",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.211",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.177",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.143",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.94",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.36",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}