CVE-2026-74405

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-15. A secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

OPP: Fix race between OPP addition and lookup

A race exists between dev_pm_opp_add_dynamic() and dev_pm_opp_find_freq_exact():

CPU0 (add) CPU1 (lookup) ------------------------------- ------------------------------ _opp_add() mutex_lock() list_add(&new_opp->node, head) mutex_unlock() _opp_table_find_key() mutex_lock() dev_pm_opp_get(opp) kref_get() mutex_unlock() kref_init(&new_opp->kref) dev_pm_opp_put() kref_put_mutex()

The newly added OPP is inserted into the list before its kref is initialized. A concurrent lookup can find this OPP and increment its reference count while it is still uninitialized, leading to refcount corruption and a potential premature free.

Fix this by initializing ->kref and ->opp_table before making the OPP visible via list_add(). This ensures any concurrent lookup observes a fully initialized object.

[ Viresh: Updated commit log ]

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
40
EG Risk 40/100CISA 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.1%
EPSS %ILE
2nd
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

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

August 15, 2026

Last Modified

August 17, 2026

Advisory Details (3)

Auto-updated Aug 17, 2026
Patch available.
generic

OPP: Fix race between OPP addition and lookup - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f5e1cc9a284bff2510981643a5bca4bc4c21b81a
generic

OPP: Fix race between OPP addition and lookup - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bb75bd7d9ae7672034f73ce67a57e6ac89bb39e5
generic

OPP: Fix race between OPP addition and lookup - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/46696b0b2123475d7f95909435c09808fc5ffd23

Vendor Advisories for CVE-2026-74405(2)

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

Patch Availability(4)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-azure-lts-26.04 (7.0.0-1017.17) @ resolute2026-10-06ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1015.15) @ resolute2026-10-06ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-38.38) @ resolute2026-10-06ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1035.38) @ noble2026-10-06ubuntu

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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 7.2~rc7-1~exp1 (358 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.2~rc7-1~exp1 (181 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (160 versions)
  • every version up to 7.1.5-1: fixed in 7.1.5-1
—

Additional Vendor Advisories

(4)

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 36× in last 7d / 131× 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 227 total refreshes for this CVE.

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

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2026-74405?
CVE-2026-74405 is a high vulnerability published on August 15, 2026. In the Linux kernel, the following vulnerability has been resolved: OPP: Fix race between OPP addition and lookup A race exists between devpmoppadddynamic() and devpmoppfindfreq_exact(): CPU0 (add) CPU1 (lookup) ------------------------------- ------------------------------ oppadd() mutex_lock()…
When was CVE-2026-74405 disclosed?
CVE-2026-74405 was first published on August 15, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-74405 actively exploited?
CVE-2026-74405 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (2nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-74405?
CVE-2026-74405 has a CVSS base score of 7.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-74405?
A fix for CVE-2026-74405 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-74405 are linked in the Vendor Advisories panel on this page.

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