{
  "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-2025-39857",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-39857",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-09-19T15:26:28.225Z",
    "updatedAt": "2026-10-15T22:02:32.358Z",
    "importedAt": "2026-10-24T01:57:34.152Z",
    "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": "net/smc: fix one NULL pointer dereference in smc_ib_is_sg_need_sync()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/smc: fix one NULL pointer dereference in smc_ib_is_sg_need_sync()\n\nBUG: kernel NULL pointer dereference, address: 00000000000002ec\nPGD 0 P4D 0\nOops: Oops: 0000 [#1] SMP PTI\nCPU: 28 UID: 0 PID: 343 Comm: kworker/28:1 Kdump: loaded Tainted: G        OE       6.17.0-rc2+ #9 NONE\nTainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014\nWorkqueue: smc_hs_wq smc_listen_work [smc]\nRIP: 0010:smc_ib_is_sg_need_sync+0x9e/0xd0 [smc]\n...\nCall Trace:\n <TASK>\n smcr_buf_map_link+0x211/0x2a0 [smc]\n __smc_buf_create+0x522/0x970 [smc]\n smc_buf_create+0x3a/0x110 [smc]\n smc_find_rdma_v2_device_serv+0x18f/0x240 [smc]\n ? smc_vlan_by_tcpsk+0x7e/0xe0 [smc]\n smc_listen_find_device+0x1dd/0x2b0 [smc]\n smc_listen_work+0x30f/0x580 [smc]\n process_one_work+0x18c/0x340\n worker_thread+0x242/0x360\n kthread+0xe7/0x220\n ret_from_fork+0x13a/0x160\n ret_from_fork_asm+0x1a/0x30\n </TASK>\n\nIf the software RoCE device is used, ibdev->dma_device is a null pointer.\nAs a result, the problem occurs. Null pointer detection is added to\nprevent problems.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0ef69e788411cba2af017db731a9fc62d255e9ac",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0cdf1fd8fc59d44a48c694324611136910301ef9"
            },
            {
              "version": "0ef69e788411cba2af017db731a9fc62d255e9ac",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f18d9b3abf9c6587372cc702f963a7592277ed56"
            },
            {
              "version": "0ef69e788411cba2af017db731a9fc62d255e9ac",
              "status": "affected",
              "versionType": "git",
              "lessThan": "eb929910bd4b4165920fa06a87b22cc6cae92e0e"
            },
            {
              "version": "0ef69e788411cba2af017db731a9fc62d255e9ac",
              "status": "affected",
              "versionType": "git",
              "lessThan": "34f17cbe027050b8d5316ea1b6f9bd7c378e92de"
            },
            {
              "version": "0ef69e788411cba2af017db731a9fc62d255e9ac",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ba1e9421cf1a8369d25c3832439702a015d6b5f9"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.0",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.0"
            },
            {
              "version": "6.1.151",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.105",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.46",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.16.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.16.*"
            },
            {
              "version": "6.17",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}