{
  "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-2025-40329",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-40329",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-09T04:09:46.156Z",
    "updatedAt": "2026-05-11T21:47:15.504Z",
    "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": "drm/sched: Fix deadlock in drm_sched_entity_kill_jobs_cb",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/sched: Fix deadlock in drm_sched_entity_kill_jobs_cb\n\nThe Mesa issue referenced below pointed out a possible deadlock:\n\n[ 1231.611031]  Possible interrupt unsafe locking scenario:\n\n[ 1231.611033]        CPU0                    CPU1\n[ 1231.611034]        ----                    ----\n[ 1231.611035]   lock(&xa->xa_lock#17);\n[ 1231.611038]                                local_irq_disable();\n[ 1231.611039]                                lock(&fence->lock);\n[ 1231.611041]                                lock(&xa->xa_lock#17);\n[ 1231.611044]   <Interrupt>\n[ 1231.611045]     lock(&fence->lock);\n[ 1231.611047]\n                *** DEADLOCK ***\n\nIn this example, CPU0 would be any function accessing job->dependencies\nthrough the xa_* functions that don't disable interrupts (eg:\ndrm_sched_job_add_dependency(), drm_sched_entity_kill_jobs_cb()).\n\nCPU1 is executing drm_sched_entity_kill_jobs_cb() as a fence signalling\ncallback so in an interrupt context. It will deadlock when trying to\ngrab the xa_lock which is already held by CPU0.\n\nReplacing all xa_* usage by their xa_*_irq counterparts would fix\nthis issue, but Christian pointed out another issue: dma_fence_signal\ntakes fence.lock and so does dma_fence_add_callback.\n\n  dma_fence_signal() // locks f1.lock\n  -> drm_sched_entity_kill_jobs_cb()\n  -> foreach dependencies\n     -> dma_fence_add_callback() // locks f2.lock\n\nThis will deadlock if f1 and f2 share the same spinlock.\n\nTo fix both issues, the code iterating on dependencies and re-arming them\nis moved out to drm_sched_entity_kill_jobs_work().\n\n[phasta: commit message nits]",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "2fdb8a8f07c2f1353770a324fd19b8114e4329ac",
              "status": "affected",
              "versionType": "git",
              "lessThan": "70150b9443dddf02157d821c68abf438f55a2e8e"
            },
            {
              "version": "2fdb8a8f07c2f1353770a324fd19b8114e4329ac",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0d63031ee4a57be0252cb9a4e09ae921c75cece9"
            },
            {
              "version": "2fdb8a8f07c2f1353770a324fd19b8114e4329ac",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3e8ada4fd838e3fd2cca94000dac054f3a347c01"
            },
            {
              "version": "2fdb8a8f07c2f1353770a324fd19b8114e4329ac",
              "status": "affected",
              "versionType": "git",
              "lessThan": "487df8b698345dd5a91346335f05170ed5f29d4e"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.2",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.2"
            },
            {
              "version": "6.6.117",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.58",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.17.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "version": "6.18",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}