{"api_version":"1","generated_at":"2026-06-14T10:46:29+00:00","cve":"CVE-2026-46049","urls":{"html":"https://cve.report/CVE-2026-46049","api":"https://cve.report/api/cve/CVE-2026-46049.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46049","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46049"},"summary":{"title":"ALSA: ctxfi: Add fallback to default RSR for S/PDIF","description":"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->pll_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->rsr when atc->pll_rate is 0. This reflects\nthe hardware state, since hw_card_init() already configures the PLL\nto the default RSR.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:17:24","updated_at":"2026-06-01 17:17:21"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/30f9494c6f2b53a78822cfb653ffbb1d092d44c8","name":"https://git.kernel.org/stable/c/30f9494c6f2b53a78822cfb653ffbb1d092d44c8","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7d61662197ecdc458e33e475b6ada7f6da61d364","name":"https://git.kernel.org/stable/c/7d61662197ecdc458e33e475b6ada7f6da61d364","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/09496158f6ebba8830593f8972035c02f97124c1","name":"https://git.kernel.org/stable/c/09496158f6ebba8830593f8972035c02f97124c1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/615b7a5e5d8be68d52f262579906f7e015ba4606","name":"https://git.kernel.org/stable/c/615b7a5e5d8be68d52f262579906f7e015ba4606","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d0b53842211f73a10ea174100a213f7fa14b9f33","name":"https://git.kernel.org/stable/c/d0b53842211f73a10ea174100a213f7fa14b9f33","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/dfc00979ff00d9dfdfa1df32144a272ee2728102","name":"https://git.kernel.org/stable/c/dfc00979ff00d9dfdfa1df32144a272ee2728102","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/95b1ee8442cabbde83b2848e7c6100df90f3a00d","name":"https://git.kernel.org/stable/c/95b1ee8442cabbde83b2848e7c6100df90f3a00d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/25ded535ee261161bcf19dafd525c542e606559d","name":"https://git.kernel.org/stable/c/25ded535ee261161bcf19dafd525c542e606559d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46049","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46049","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8cc72361481f00253f1e468ade5795427386d593 d0b53842211f73a10ea174100a213f7fa14b9f33 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8cc72361481f00253f1e468ade5795427386d593 615b7a5e5d8be68d52f262579906f7e015ba4606 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8cc72361481f00253f1e468ade5795427386d593 dfc00979ff00d9dfdfa1df32144a272ee2728102 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8cc72361481f00253f1e468ade5795427386d593 25ded535ee261161bcf19dafd525c542e606559d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.209 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.175 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.140 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.86 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.27 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.4 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"46049","cve":"CVE-2026-46049","epss":"0.000320000","percentile":"0.097350000","score_date":"2026-06-04","updated_at":"2026-06-05 00:02:15"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["sound/pci/ctxfi/ctatc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d0b53842211f73a10ea174100a213f7fa14b9f33","status":"affected","version":"8cc72361481f00253f1e468ade5795427386d593","versionType":"git"},{"lessThan":"615b7a5e5d8be68d52f262579906f7e015ba4606","status":"affected","version":"8cc72361481f00253f1e468ade5795427386d593","versionType":"git"},{"lessThan":"dfc00979ff00d9dfdfa1df32144a272ee2728102","status":"affected","version":"8cc72361481f00253f1e468ade5795427386d593","versionType":"git"},{"lessThan":"25ded535ee261161bcf19dafd525c542e606559d","status":"affected","version":"8cc72361481f00253f1e468ade5795427386d593","versionType":"git"},{"lessThan":"30f9494c6f2b53a78822cfb653ffbb1d092d44c8","status":"affected","version":"8cc72361481f00253f1e468ade5795427386d593","versionType":"git"},{"lessThan":"09496158f6ebba8830593f8972035c02f97124c1","status":"affected","version":"8cc72361481f00253f1e468ade5795427386d593","versionType":"git"},{"lessThan":"95b1ee8442cabbde83b2848e7c6100df90f3a00d","status":"affected","version":"8cc72361481f00253f1e468ade5795427386d593","versionType":"git"},{"lessThan":"7d61662197ecdc458e33e475b6ada7f6da61d364","status":"affected","version":"8cc72361481f00253f1e468ade5795427386d593","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["sound/pci/ctxfi/ctatc.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"2.6.31"},{"lessThan":"2.6.31","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.140","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.86","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.27","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.258","versionStartIncluding":"2.6.31","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.209","versionStartIncluding":"2.6.31","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.175","versionStartIncluding":"2.6.31","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.140","versionStartIncluding":"2.6.31","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.86","versionStartIncluding":"2.6.31","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.27","versionStartIncluding":"2.6.31","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.4","versionStartIncluding":"2.6.31","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1-rc1","versionStartIncluding":"2.6.31","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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->pll_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->rsr when atc->pll_rate is 0. This reflects\nthe hardware state, since hw_card_init() already configures the PLL\nto the default RSR."}],"providerMetadata":{"dateUpdated":"2026-06-01T16:17:37.330Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/d0b53842211f73a10ea174100a213f7fa14b9f33"},{"url":"https://git.kernel.org/stable/c/615b7a5e5d8be68d52f262579906f7e015ba4606"},{"url":"https://git.kernel.org/stable/c/dfc00979ff00d9dfdfa1df32144a272ee2728102"},{"url":"https://git.kernel.org/stable/c/25ded535ee261161bcf19dafd525c542e606559d"},{"url":"https://git.kernel.org/stable/c/30f9494c6f2b53a78822cfb653ffbb1d092d44c8"},{"url":"https://git.kernel.org/stable/c/09496158f6ebba8830593f8972035c02f97124c1"},{"url":"https://git.kernel.org/stable/c/95b1ee8442cabbde83b2848e7c6100df90f3a00d"},{"url":"https://git.kernel.org/stable/c/7d61662197ecdc458e33e475b6ada7f6da61d364"}],"title":"ALSA: ctxfi: Add fallback to default RSR for S/PDIF","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46049","datePublished":"2026-05-27T12:57:05.761Z","dateReserved":"2026-05-13T15:03:33.094Z","dateUpdated":"2026-06-01T16:17:37.330Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:17:24","lastModifiedDate":"2026-06-01 17:17:21","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46049","Ordinal":"1","Title":"ALSA: ctxfi: Add fallback to default RSR for S/PDIF","CVE":"CVE-2026-46049","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46049","Ordinal":"1","NoteData":"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->pll_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->rsr when atc->pll_rate is 0. This reflects\nthe hardware state, since hw_card_init() already configures the PLL\nto the default RSR.","Type":"Description","Title":"ALSA: ctxfi: Add fallback to default RSR for S/PDIF"}]}}}