CVE-2026-89947

HIGHPre-NVD 8.08.0—
EchelonGraph scoreHIGH confidence

Score 8.0 from GitHub Security Advisory (severity: HIGH) published 2026-09-16. A secondary CVSS source baseline 8.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.0EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 8.0Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

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

clk: meson: align gxbb_32k_clk_sel number of parents with actual count

The following out-of-bounds read has been observed by Christian on a GXBB WeTek Hub: ================================================================== BUG: KASAN: global-out-of-bounds in __clk_register+0x1b70/0x2418 Read of size 8 at addr ffffd66320cf88e0 by task swapper/0/1

CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted 7.0.0-rc5 #1 PREEMPT Hardware name: WeTek Hub (DT) Call trace: show_stack+0x14/0x20 (C) dump_stack_lvl+0x74/0x94 print_report+0x164/0x4b0 kasan_report+0x98/0xd8 __asan_report_load8_noabort+0x1c/0x24 __clk_register+0x1b70/0x2418 devm_clk_hw_register+0x74/0x15c meson_clkc_init+0xd4/0x20c meson_clkc_syscon_probe+0x5c/0x94 platform_probe+0xbc/0x17c really_probe+0x184/0x844 __driver_probe_device+0x154/0x35c driver_probe_device+0x60/0x188 __driver_attach+0x168/0x4a0 bus_for_each_dev+0xec/0x180 driver_attach+0x38/0x58 bus_add_driver+0x238/0x4c0 driver_register+0x150/0x388 __platform_driver_register+0x54/0x7c gxbb_clkc_driver_init+0x18/0x20 do_one_initcall+0xb8/0x340 kernel_init_freeable+0x49c/0x52c kernel_init+0x24/0x148 ret_from_fork+0x10/0x20

The buggy address belongs to the variable: gxbb_32k_clk_parents+0x60/0x400

The buggy address belongs to a vmalloc virtual mapping The buggy address belongs to the physical page:

Memory state around the buggy address: ffffd66320cf8780: 00 00 00 00 f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9 ffffd66320cf8800: 00 04 f9 f9 f9 f9 f9 f9 00 04 f9 f9 f9 f9 f9 f9 >ffffd66320cf8880: 00 00 00 00 00 00 00 00 00 00 00 00 f9 f9 f9 f9 ^ ffffd66320cf8900: 00 01 f9 f9 f9 f9 f9 f9 00 06 f9 f9 f9 f9 f9 f9 ffffd66320cf8980: 00 00 02 f9 f9 f9 f9 f9 00 00 02 f9 f9 f9 f9 f9 ==================================================================

Commit 7915d7d5407c ("clk: amlogic: gxbb: drop non existing 32k clock parent") dropped a non-existing clock parent from the gxbb_32k_clk_sel mux but didn't adjust the hard-coded num_parents field. Fix the actual number of parents of that mux by using ARRAY_SIZE instead (avoiding similar problems in future).

CVSS v3
8.0
EG Score
8.0HIGHhigh confidence
EG Risk
41
EG Risk 41/100CISA SSVC

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
Severity80% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
7th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 16, 2026

Last Modified

September 16, 2026

Advisory Details (8)

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

clk: meson: align gxbb_32k_clk_sel number of parents with actual count - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f6ff0e6995dbff5cb145d7795c8f0af9c168094a
generic

clk: meson: align gxbb_32k_clk_sel number of parents with actual count - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c86214e6178c38a0eff39110a4e92b824f5dd403
generic

clk: meson: align gxbb_32k_clk_sel number of parents with actual count - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bf85bd6e550c17ffa585606fcc18eb5b7c95bbce
generic

clk: meson: align gxbb_32k_clk_sel number of parents with actual count - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8b2f7a411e7ceaef268355c2150c22ee3f509c3b
generic

clk: meson: align gxbb_32k_clk_sel number of parents with actual count - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/628b6fee9fca292f12d07f0f1bcf1edefa949d81
generic

clk: meson: align gxbb_32k_clk_sel number of parents with actual count - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4582949b7badcb91bb537ca522d69b8a35131e72
generic

clk: meson: align gxbb_32k_clk_sel number of parents with actual count - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/404079d124d75a5da16322acc53d3ffc50b4ec68
generic

clk: meson: align gxbb_32k_clk_sel number of parents with actual count - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1e509a6707d2fd9da79bdfa24742661b34562bfd

Vendor Advisories for CVE-2026-89947(2)

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

Affected Packages

(4 across 3 ecosystems)
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 7.2~rc7-1~exp1 (360 versions)
  • every version on: no fix on record
—
linux-6.126.12.100-1~deb12u1, 6.12.101-1~deb12u1, 6.12.107-1~deb12u1
  • every version up to 6.12.111-1~deb12u1: fixed in 6.12.111-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.12.96-1 (35 versions)
  • every version up to 6.12.111-1: fixed in 6.12.111-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.2~rc7-1~exp1 (179 versions)
  • every version up to 7.2.6-1: fixed in 7.2.6-1
—

Data Freshness Timeline

(refreshed 41× in last 7d / 115× 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 115 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-89947?
CVE-2026-89947 is a high vulnerability published on September 16, 2026. In the Linux kernel, the following vulnerability has been resolved: clk: meson: align gxbb32kclk_sel number of parents with actual count The following out-of-bounds read has been observed by Christian on a GXBB WeTek Hub: ================================================================== BUG:…
When was CVE-2026-89947 disclosed?
CVE-2026-89947 was first published on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-89947 actively exploited?
CVE-2026-89947 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-89947?
CVE-2026-89947 has a CVSS base score of 8.0 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-89947?
No fix for CVE-2026-89947 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-89947 are linked in the Vendor Advisories panel on this page.

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