{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "8cc72361481f00253f1e468ade5795427386d593"
            },
            {
              "fixed": "d0b53842211f73a10ea174100a213f7fa14b9f33"
            },
            {
              "fixed": "615b7a5e5d8be68d52f262579906f7e015ba4606"
            },
            {
              "fixed": "dfc00979ff00d9dfdfa1df32144a272ee2728102"
            },
            {
              "fixed": "25ded535ee261161bcf19dafd525c542e606559d"
            },
            {
              "fixed": "30f9494c6f2b53a78822cfb653ffbb1d092d44c8"
            },
            {
              "fixed": "09496158f6ebba8830593f8972035c02f97124c1"
            },
            {
              "fixed": "95b1ee8442cabbde83b2848e7c6100df90f3a00d"
            },
            {
              "fixed": "7d61662197ecdc458e33e475b6ada7f6da61d364"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.31"
            },
            {
              "fixed": "5.10.258"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.209"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.175"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.140"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.86"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.27"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46049.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ctxfi: Add fallback to default RSR for S/PDIF\n\nspdif_passthru_playback_get_resources() uses atc-\u003epll_rate as the RSR\nfor the MSR calculation loop. However, pll_rate is only updated in\natc_pll_init() and not in hw_pll_init(), so it remains 0 after the\ncard init.\n\nWhen spdif_passthru_playback_setup() skips atc_pll_init() for\n32000 Hz, (rsr * desc.msr) always becomes 0, causing the loop to spin\nindefinitely.\n\nAdd fallback to use atc-\u003ersr when atc-\u003epll_rate is 0. This reflects\nthe hardware state, since hw_card_init() already configures the PLL\nto the default RSR.",
  "id": "CVE-2026-46049",
  "modified": "2026-07-08T05:36:45.855316120Z",
  "published": "2026-05-27T12:57:05.761Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/09496158f6ebba8830593f8972035c02f97124c1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25ded535ee261161bcf19dafd525c542e606559d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/30f9494c6f2b53a78822cfb653ffbb1d092d44c8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/615b7a5e5d8be68d52f262579906f7e015ba4606"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7d61662197ecdc458e33e475b6ada7f6da61d364"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/95b1ee8442cabbde83b2848e7c6100df90f3a00d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d0b53842211f73a10ea174100a213f7fa14b9f33"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dfc00979ff00d9dfdfa1df32144a272ee2728102"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46049.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46049"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "ALSA: ctxfi: Add fallback to default RSR for S/PDIF"
}