CVE-2026-46049

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-05-27. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

ALSA: ctxfi: Add fallback to default RSR for S/PDIF

spdif_passthru_playback_get_resources() uses atc->pll_rate as the RSR for the MSR calculation loop. However, pll_rate is only updated in atc_pll_init() and not in hw_pll_init(), so it remains 0 after the card init.

When spdif_passthru_playback_setup() skips atc_pll_init() for 32000 Hz, (rsr * desc.msr) always becomes 0, causing the loop to spin indefinitely.

Add fallback to use atc->rsr when atc->pll_rate is 0. This reflects the hardware state, since hw_card_init() already configures the PLL to the default RSR.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 16, 2026

Advisory Details (8)

Auto-updated Jun 16, 2026
No patch confirmed yet.
generic

ALSA: ctxfi: Add fallback to default RSR for S/PDIF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/dfc00979ff00d9dfdfa1df32144a272ee2728102
generic

ALSA: ctxfi: Add fallback to default RSR for S/PDIF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d0b53842211f73a10ea174100a213f7fa14b9f33
generic

ALSA: ctxfi: Add fallback to default RSR for S/PDIF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/95b1ee8442cabbde83b2848e7c6100df90f3a00d
generic

ALSA: ctxfi: Add fallback to default RSR for S/PDIF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7d61662197ecdc458e33e475b6ada7f6da61d364
generic

ALSA: ctxfi: Add fallback to default RSR for S/PDIF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/615b7a5e5d8be68d52f262579906f7e015ba4606
generic

ALSA: ctxfi: Add fallback to default RSR for S/PDIF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/30f9494c6f2b53a78822cfb653ffbb1d092d44c8
generic

ALSA: ctxfi: Add fallback to default RSR for S/PDIF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/25ded535ee261161bcf19dafd525c542e606559d
generic

ALSA: ctxfi: Add fallback to default RSR for S/PDIF - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/09496158f6ebba8830593f8972035c02f97124c1

Vendor Advisories for CVE-2026-46049(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(30)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-08-25ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-08-25ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1014.14) @ resolute2026-08-25ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-08-25ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-27.27) @ resolute2026-08-25ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-25ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-25ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-25ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-08-25ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-25ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-08-25ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-25ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-08-25ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-08-25ubuntu

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)5.10.259-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)6.1.176-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)6.1.176-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.86-1~bpo12+1 (19 versions)6.12.86-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.4-1~bpo13+1 (131 versions)7.0.4-1—

Additional Vendor Advisories

(24)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 5× in last 7d / 68× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 204 total refreshes for this CVE.

  1. 2026-09-04 05:06 UTCEPSS rescore
  2. 2026-09-02 14:12 UTCEPSS rescore
  3. 2026-09-01 13:54 UTCEPSS rescore
  4. 2026-08-30 19:17 UTCEPSS rescore
  5. 2026-08-30 01:22 UTCEPSS rescore
  6. 2026-08-28 21:41 UTCEPSS rescore
  7. 2026-08-27 14:25 UTCEPSS rescore
  8. 2026-08-26 14:46 UTCEPSS rescore
  9. 2026-08-25 13:49 UTCEPSS rescore
  10. 2026-08-25 05:24 UTCEG score recompute
  11. 2026-08-25 05:24 UTCVendor advisory
  12. 2026-08-25 05:24 UTCGHSA enrichment
  13. 2026-08-23 15:10 UTCEG score recompute
  14. 2026-08-23 15:10 UTCVendor advisory
  15. 2026-08-23 15:10 UTCGHSA enrichment
  16. 2026-08-23 00:19 UTCEPSS rescore
  17. 2026-08-21 23:49 UTCEPSS rescore
  18. 2026-08-21 20:39 UTCEG score recompute
  19. 2026-08-21 20:39 UTCVendor advisory
  20. 2026-08-21 20:39 UTCGHSA enrichment
  21. 2026-08-20 22:55 UTCEPSS rescore
  22. 2026-08-20 11:27 UTCEG score recompute
  23. 2026-08-20 11:27 UTCVendor advisory
  24. 2026-08-20 11:26 UTCGHSA enrichment
  25. 2026-08-19 17:04 UTCEPSS rescore
Show 75 more
  1. 2026-08-18 13:48 UTCEPSS rescore
  2. 2026-08-17 09:18 UTCEG score recompute
  3. 2026-08-17 09:18 UTCVendor advisory
  4. 2026-08-17 09:18 UTCGHSA enrichment
  5. 2026-08-16 14:56 UTCEPSS rescore
  6. 2026-08-16 04:02 UTCEG score recompute
  7. 2026-08-16 04:02 UTCVendor advisory
  8. 2026-08-16 04:02 UTCGHSA enrichment
  9. 2026-08-16 02:14 UTCEPSS rescore
  10. 2026-08-15 03:20 UTCEG score recompute
  11. 2026-08-15 03:20 UTCVendor advisory
  12. 2026-08-15 03:20 UTCGHSA enrichment
  13. 2026-08-15 01:30 UTCEPSS rescore
  14. 2026-08-14 02:37 UTCEG score recompute
  15. 2026-08-14 02:37 UTCVendor advisory
  16. 2026-08-14 02:37 UTCGHSA enrichment
  17. 2026-08-13 22:00 UTCEPSS rescore
  18. 2026-08-13 01:55 UTCEG score recompute
  19. 2026-08-13 01:55 UTCVendor advisory
  20. 2026-08-13 01:55 UTCGHSA enrichment
  21. 2026-08-12 13:51 UTCEPSS rescore
  22. 2026-08-12 01:13 UTCEG score recompute
  23. 2026-08-12 01:13 UTCVendor advisory
  24. 2026-08-12 01:13 UTCGHSA enrichment
  25. 2026-08-11 00:31 UTCEG score recompute
  26. 2026-08-11 00:31 UTCVendor advisory
  27. 2026-08-11 00:31 UTCGHSA enrichment
  28. 2026-08-11 00:00 UTCEPSS rescore
  29. 2026-08-09 23:48 UTCEG score recompute
  30. 2026-08-09 23:48 UTCVendor advisory
  31. 2026-08-09 23:48 UTCGHSA enrichment
  32. 2026-08-09 13:46 UTCEPSS rescore
  33. 2026-08-08 23:06 UTCEG score recompute
  34. 2026-08-08 23:06 UTCVendor advisory
  35. 2026-08-08 23:06 UTCGHSA enrichment
  36. 2026-08-08 16:37 UTCEPSS rescore
  37. 2026-08-07 22:19 UTCEG score recompute
  38. 2026-08-07 22:19 UTCVendor advisory
  39. 2026-08-07 22:19 UTCGHSA enrichment
  40. 2026-08-06 21:37 UTCEG score recompute
  41. 2026-08-06 21:37 UTCVendor advisory
  42. 2026-08-06 21:37 UTCGHSA enrichment
  43. 2026-08-06 13:47 UTCEPSS rescore
  44. 2026-08-05 20:54 UTCEG score recompute
  45. 2026-08-05 20:54 UTCVendor advisory
  46. 2026-08-05 20:54 UTCGHSA enrichment
  47. 2026-08-05 19:17 UTCEPSS rescore
  48. 2026-08-04 15:10 UTCEPSS rescore
  49. 2026-08-04 10:39 UTCEPSS rescore
  50. 2026-08-03 16:48 UTCEG score recompute
  51. 2026-08-03 16:48 UTCVendor advisory
  52. 2026-08-03 16:48 UTCGHSA enrichment
  53. 2026-08-03 10:36 UTCEPSS rescore
  54. 2026-08-02 16:05 UTCEG score recompute
  55. 2026-08-02 16:05 UTCVendor advisory
  56. 2026-08-02 16:05 UTCGHSA enrichment
  57. 2026-08-02 02:27 UTCEPSS rescore
  58. 2026-08-01 15:22 UTCEG score recompute
  59. 2026-08-01 15:22 UTCVendor advisory
  60. 2026-08-01 15:22 UTCGHSA enrichment
  61. 2026-08-01 04:16 UTCEPSS rescore
  62. 2026-07-31 07:31 UTCEG score recompute
  63. 2026-07-31 07:31 UTCVendor advisory
  64. 2026-07-31 07:31 UTCGHSA enrichment
  65. 2026-07-30 16:28 UTCEPSS rescore
  66. 2026-07-30 01:30 UTCEPSS rescore
  67. 2026-07-29 15:18 UTCEG score recompute
  68. 2026-07-29 15:18 UTCVendor advisory
  69. 2026-07-29 15:18 UTCGHSA enrichment
  70. 2026-07-28 15:36 UTCEPSS rescore
  71. 2026-07-27 14:13 UTCEPSS rescore
  72. 2026-07-27 10:28 UTCEG score recompute
  73. 2026-07-27 10:28 UTCVendor advisory
  74. 2026-07-27 10:27 UTCGHSA enrichment
  75. 2026-07-26 14:54 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-46049?
CVE-2026-46049 is a medium vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Add fallback to default RSR for S/PDIF spdifpassthruplaybackgetresources() uses atc->pll_rate as the RSR for the MSR calculation loop. However, pll_rate is only updated in atcpllinit() and not in hwpllinit(), so it…
When was CVE-2026-46049 disclosed?
CVE-2026-46049 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46049 actively exploited?
CVE-2026-46049 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 97.7% of all scored CVEs.
What is the CVSS score of CVE-2026-46049?
CVE-2026-46049 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-46049?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46049, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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