ASoC: SOF: Intel: Fix NULL ptr dereference when ENOMEM

{
  "id": "689968bfafb78c271bcd283725d7323e256003bdac158543b5188d6834b52f69",
  "url": "https://osv.dev/vulnerability/CVE-2022-49268",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ASoC: SOF: Intel: Fix NULL ptr dereference when ENOMEM",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: Intel: Fix NULL ptr dereference when ENOMEM Do not call snd_dma_free_pages() when snd_dma_alloc_pages() returns -ENOMEM because it leads to a NULL pointer dereference bug. The dmesg says: [ T1387] sof-audio-pci-intel-tgl 0000:00:1f.3: error: memory alloc failed: -12 [ T1387] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ T1387] #PF: supervisor read access in kernel mode [ T1387] #PF: error_code(0x0000) - not-present page [ T1387] PGD 0 P4D 0 [ T1387] Oops: 0000 [#1] PREEMPT SMP NOPTI [ T1387] CPU: 6 PID: 1387 Comm: alsa-sink-HDA A Tainted: G W 5.17.0-rc4-superb-owl-00055-g80d47f5de5e3 [ T1387] Hardware name: HP HP Laptop 14s-dq2xxx/87FD, BIOS F.15 09/15/2021 [ T1387] RIP: 0010:dma_free_noncontiguous+0x37/0x80 [ T1387] Code: [... snip ...] [ T1387] RSP: 0000:ffffc90002b87770 EFLAGS: 00010246 [ T1387] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ T1387] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888101db30d0 [ T1387] RBP: 00000000fffffff4 R08: 0000000000000000 R09: 0000000000000000 [ T1387] R10: 0000000000000000 R11: ffffc90002b874d0 R12: 0000000000000001 [ T1387] R13: 0000000000058000 R14: ffff888105260c68 R15: ffff888105260828 [ T1387] FS: 00007f42e2ffd640(0000) GS:ffff888466b80000(0000) knlGS:0000000000000000 [ T1387] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ T1387] CR2: 0000000000000000 CR3: 000000014acf0003 CR4: 0000000000770ee0 [ T1387",
    "evidence": "osv:CVE-2022-49268",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.4.189",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.110",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.33",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.16.19",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.17.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-49268",
      "aliases": [
        "CVE-2022-49268"
      ],
      "affected": [
        {
          "ranges": [
            {
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              "type": "GIT",
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                {
                  "fixed": "01df5f7627f1624d6bb0b8c0870a569b32adfbf8"
                },
                {
                  "fixed": "0c307349fe060971625b856c92f0361b8ea9a120"
                },
                {
                  "fixed": "b6094744e261083d3790c3def770ebf5060d383b"
                },
                {
                  "fixed": "09eca322d4118dc26570ca6100fa34e59e5a5143"
                },
                {
                  "fixed": "67f7bd9ff9079c1ee2de58e024fb582905c74c16"
                },
                {
                  "fixed": "b7fb0ae09009d076964afe4c1a2bde1ee2bd88a9"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49268.json"
          }
        },
        {
          "ranges": [
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              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.2.0"
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                  "fixed": "5.4.189"
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              ]
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            {
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              ]
            },
            {
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                  "introduced": "5.11.0"
                },
                {
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            },
            {
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              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "5.17.0"
                },
                {
                  "fixed": "5.17.2"
                }
              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49268.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:35.320453538Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/01df5f7627f1624d6bb0b8c0870a569b32adfbf8",
        "https://git.kernel.org/stable/c/09eca322d4118dc26570ca6100fa34e59e5a5143",
        "https://git.kernel.org/stable/c/0c307349fe060971625b856c92f0361b8ea9a120",
        "https://git.kernel.org/stable/c/67f7bd9ff9079c1ee2de58e024fb582905c74c16",
        "https://git.kernel.org/stable/c/b6094744e261083d3790c3def770ebf5060d383b",
        "https://git.kernel.org/stable/c/b7fb0ae09009d076964afe4c1a2bde1ee2bd88a9",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49268.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49268",
        "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/2022/49xxx/CVE-2022-49268.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49268",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 502196,
  "published_at": "2025-02-26T01:56:16.713+00:00"
}