nouveau: fix instmem race condition around ptr stores

{
  "id": "f957a56c639fb12f33aa4a9da90b31cfc99206e40e8ff3a1762e8f12c2e98871",
  "url": "https://osv.dev/vulnerability/CVE-2024-26984",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "nouveau: fix instmem race condition around ptr stores",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: nouveau: fix instmem race condition around ptr stores Running a lot of VK CTS in parallel against nouveau, once every few hours you might see something like this crash. BUG: kernel NULL pointer dereference, address: 0000000000000008 PGD 8000000114e6e067 P4D 8000000114e6e067 PUD 109046067 PMD 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 7 PID: 53891 Comm: deqp-vk Not tainted 6.8.0-rc6+ #27 Hardware name: Gigabyte Technology Co., Ltd. Z390 I AORUS PRO WIFI/Z390 I AORUS PRO WIFI-CF, BIOS F8 11/05/2021 RIP: 0010:gp100_vmm_pgt_mem+0xe3/0x180 [nouveau] Code: c7 48 01 c8 49 89 45 58 85 d2 0f 84 95 00 00 00 41 0f b7 46 12 49 8b 7e 08 89 da 42 8d 2c f8 48 8b 47 08 41 83 c7 01 48 89 ee <48> 8b 40 08 ff d0 0f 1f 00 49 8b 7e 08 48 89 d9 48 8d 75 04 48 c1 RSP: 0000:ffffac20c5857838 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 00000000004d8001 RCX: 0000000000000001 RDX: 00000000004d8001 RSI: 00000000000006d8 RDI: ffffa07afe332180 RBP: 00000000000006d8 R08: ffffac20c5857ad0 R09: 0000000000ffff10 R10: 0000000000000001 R11: ffffa07af27e2de0 R12: 000000000000001c R13: ffffac20c5857ad0 R14: ffffa07a96fe9040 R15: 000000000000001c FS: 00007fe395eed7c0(0000) GS:ffffa07e2c980000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 000000011febe001 CR4: 00000000003706f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 00000",
    "evidence": "osv:CVE-2024-26984",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.19.313",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.4.275",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.216",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.157",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.88",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.29",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.8.8",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-26984",
      "aliases": [
        "CVE-2024-26984"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                },
                {
                  "fixed": "bba8ec5e9b16649d85bc9e9086bf7ae5b5716ff9"
                },
                {
                  "fixed": "1bc4825d4c3ec6abe43cf06c3c39d664d044cbf7"
                },
                {
                  "fixed": "13d76b2f443dc371842916dd8768009ff1594716"
                },
                {
                  "fixed": "3ab056814cd8ab84744c9a19ef51360b2271c572"
                },
                {
                  "fixed": "ad74d208f213c06d860916ad40f609ade8c13039"
                },
                {
                  "fixed": "a019b44b1bc6ed224c46fb5f88a8a10dd116e525"
                },
                {
                  "fixed": "21ca9539f09360fd83654f78f2c361f2f5ddcb52"
                },
                {
                  "fixed": "fff1386cc889d8fb4089d285f883f8cba62d82ce"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26984.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.15.0"
                },
                {
                  "fixed": "4.19.313"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "4.20.0"
                },
                {
                  "fixed": "5.4.275"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.5.0"
                },
                {
                  "fixed": "5.10.216"
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            {
              "type": "ECOSYSTEM",
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                  "introduced": "5.11.0"
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            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.88"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.29"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
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              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26984.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.440663039Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/13d76b2f443dc371842916dd8768009ff1594716",
        "https://git.kernel.org/stable/c/1bc4825d4c3ec6abe43cf06c3c39d664d044cbf7",
        "https://git.kernel.org/stable/c/21ca9539f09360fd83654f78f2c361f2f5ddcb52",
        "https://git.kernel.org/stable/c/3ab056814cd8ab84744c9a19ef51360b2271c572",
        "https://git.kernel.org/stable/c/a019b44b1bc6ed224c46fb5f88a8a10dd116e525",
        "https://git.kernel.org/stable/c/ad74d208f213c06d860916ad40f609ade8c13039",
        "https://git.kernel.org/stable/c/bba8ec5e9b16649d85bc9e9086bf7ae5b5716ff9",
        "https://git.kernel.org/stable/c/fff1386cc889d8fb4089d285f883f8cba62d82ce",
        "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html",
        "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html",
        "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/",
        "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/",
        "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26984.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-26984",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26984.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-26984",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 518688,
  "published_at": "2024-05-01T05:27:20.506+00:00"
}