CVE-2024-26709

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2024-04-03. 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

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

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

powerpc/iommu: Fix the missing iommu_group_put() during platform domain attach

The function spapr_tce_platform_iommu_attach_dev() is missing to call iommu_group_put() when the domain is already set. This refcount leak shows up with BUG_ON() during DLPAR remove operation as:

KernelBug: Kernel bug in state 'None': kernel BUG at arch/powerpc/platforms/pseries/iommu.c:100! Oops: Exception in kernel mode, sig: 5 [#1] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=8192 NUMA pSeries Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf000006 of:IBM,FW1060.00 (NH1060_016) hv:phyp pSeries NIP: c0000000000ff4d4 LR: c0000000000ff4cc CTR: 0000000000000000 REGS: c0000013aed5f840 TRAP: 0700 Tainted: G I (6.8.0-rc3-autotest-g99bd3cb0d12e) MSR: 8000000000029033 CR: 44002402 XER: 20040000 CFAR: c000000000a0d170 IRQMASK: 0 ... NIP iommu_reconfig_notifier+0x94/0x200 LR iommu_reconfig_notifier+0x8c/0x200 Call Trace: iommu_reconfig_notifier+0x8c/0x200 (unreliable) notifier_call_chain+0xb8/0x19c blocking_notifier_call_chain+0x64/0x98 of_reconfig_notify+0x44/0xdc of_detach_node+0x78/0xb0 ofdt_write.part.0+0x86c/0xbb8 proc_reg_write+0xf4/0x150 vfs_write+0xf8/0x488 ksys_write+0x84/0x140 system_call_exception+0x138/0x330 system_call_vectored_common+0x15c/0x2ec

The patch adds the missing iommu_group_put() call.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
9%
KEV
Not listed

Published

April 3, 2024

Last Modified

January 13, 2025

References (4)

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 6.7.6—osv

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.

Data Freshness Timeline

(refreshed 7× in last 7d / 41× 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 124 total refreshes for this CVE.

  1. 2026-08-06 13:45 UTCEPSS rescore
  2. 2026-08-05 19:15 UTCEPSS rescore
  3. 2026-08-04 15:08 UTCEPSS rescore
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  8. 2026-08-01 08:06 UTCOSV refresh
  9. 2026-08-01 04:14 UTCEPSS rescore
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  19. 2026-07-23 02:34 UTCEG score recompute
  20. 2026-07-22 14:07 UTCEPSS rescore
  21. 2026-07-21 15:23 UTCEPSS rescore
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  1. 2026-07-19 02:28 UTCEPSS rescore
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  5. 2026-07-15 16:56 UTCEPSS rescore
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  7. 2026-07-15 01:59 UTCEPSS rescore
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  9. 2026-07-14 15:10 UTCOSV refresh
  10. 2026-07-13 22:28 UTCEPSS rescore
  11. 2026-07-13 06:11 UTCEPSS rescore
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  13. 2026-07-12 05:45 UTCEPSS rescore
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  15. 2026-07-09 19:09 UTCEPSS rescore
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  17. 2026-07-08 15:13 UTCEPSS rescore
  18. 2026-07-07 13:45 UTCEPSS rescore
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  20. 2026-07-06 16:26 UTCEPSS rescore
  21. 2026-07-06 02:22 UTCEPSS rescore
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  23. 2026-07-05 02:29 UTCEPSS rescore
  24. 2026-07-04 06:30 UTCEPSS rescore
  25. 2026-07-01 15:05 UTCEPSS rescore
  26. 2026-06-30 23:21 UTCEPSS rescore
  27. 2026-06-30 23:21 UTCEPSS rescore
  28. 2026-06-29 14:05 UTCEPSS rescore
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  31. 2026-06-28 04:55 UTCEPSS rescore
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  33. 2026-06-27 03:07 UTCEPSS rescore
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  35. 2026-06-26 16:07 UTCOSV refresh
  36. 2026-06-25 13:48 UTCEPSS rescore
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  38. 2026-06-24 14:04 UTCEPSS rescore
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  40. 2026-06-23 21:32 UTCEPSS rescore
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  42. 2026-06-22 14:24 UTCEPSS rescore
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  44. 2026-06-21 14:55 UTCEPSS rescore
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  46. 2026-06-21 01:58 UTCEPSS rescore
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  48. 2026-06-19 19:24 UTCEPSS rescore
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  50. 2026-06-18 17:51 UTCEPSS rescore
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  54. 2026-06-15 17:47 UTCEPSS rescore
  55. 2026-06-14 23:16 UTCEPSS rescore
  56. 2026-06-13 22:59 UTCEPSS rescore
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  58. 2026-06-12 23:11 UTCEPSS rescore
  59. 2026-06-11 13:59 UTCEPSS rescore
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  61. 2026-06-10 22:17 UTCEPSS rescore
  62. 2026-06-10 13:21 UTCEPSS rescore
  63. 2026-06-10 13:21 UTCEPSS rescore
  64. 2026-06-08 22:37 UTCOSV refresh
  65. 2026-06-08 14:16 UTCEPSS rescore
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  67. 2026-06-07 15:24 UTCEPSS rescore
  68. 2026-06-07 15:24 UTCEPSS rescore
  69. 2026-06-06 13:46 UTCEPSS rescore
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  73. 2026-06-05 06:09 UTCEPSS rescore
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  75. 2026-06-04 13:11 UTCEPSS rescore

Frequently asked(5)

What is CVE-2024-26709?
CVE-2024-26709 is a medium vulnerability published on April 3, 2024. In the Linux kernel, the following vulnerability has been resolved: powerpc/iommu: Fix the missing iommugroupput() during platform domain attach The function spaprtceplatformiommuattach_dev() is missing to call iommugroupput() when the domain is already set. This refcount leak shows up with…
When was CVE-2024-26709 disclosed?
CVE-2024-26709 was first published in the National Vulnerability Database on April 3, 2024, with the most recent update on January 13, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-26709 actively exploited?
CVE-2024-26709 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 90.6% of all scored CVEs.
What is the CVSS score of CVE-2024-26709?
CVE-2024-26709 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2024-26709?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-26709, 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.

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