CVE-2026-64118

HIGHPre-NVD 8.48.4—
EchelonGraph scoreMEDIUM confidence

Score 8.4 from GitHub Security Advisory (severity: HIGH) published 2026-07-19. A secondary CVSS source baseline 8.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 8.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

qed: fix double free in qed_cxt_tables_alloc()

If one of the later PF or VF CID bitmap allocations fails, qed_cid_map_alloc() jumps to cid_map_fail and frees the previously allocated CID bitmaps before returning an error. qed_cxt_tables_alloc() then calls qed_cxt_mngr_free(), which invokes qed_cid_map_free() again.

Fix this by setting each CID bitmap pointer to NULL after bitmap_free() to avoid double free.

The bug was first flagged by an experimental analysis tool we are developing for kernel memory-management bugs while analyzing v6.13-rc1. The tool is still under development and is not yet publicly available. Manual inspection confirms that the bug is still present in v7.1-rc3.

Runtime reproduction was not attempted because exercising the failing allocation path requires device-specific setup.

CVSS v3
8.4
EG Score
8.4HIGHmedium confidence
EG Risk
42
EG Risk 42/100CISA 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
Severity84% × 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
0.2%
EPSS %ILE
3rd
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

July 19, 2026

Last Modified

August 13, 2026

Advisory Details (8)

Auto-updated Jul 21, 2026
Patch available.
generic

qed: fix double free in qed_cxt_tables_alloc() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bdf678a273cadbccc347f331ae2e93ff4d14834c
generic

qed: fix double free in qed_cxt_tables_alloc() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a04c207f0801abdd23a169b5f902a9845059a65a
generic

qed: fix double free in qed_cxt_tables_alloc() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9fe030719bd083b766602692ee96c8c985798e3c
generic

qed: fix double free in qed_cxt_tables_alloc() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8cf5e4d2ca6b101d163c7423a426fb0aec34f7bb
generic

qed: fix double free in qed_cxt_tables_alloc() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3904b993cc17ec5d7c5d3b57dbd0b775dafb9684
generic

qed: fix double free in qed_cxt_tables_alloc() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2bccfb8476ca5f3548afbd623dc7a6980d4e77de
generic

qed: fix double free in qed_cxt_tables_alloc() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0e47fc1c9181ae029e0e35a865cbf2adcbae626c
generic

qed: fix double free in qed_cxt_tables_alloc() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/06fa8e69019fd3c41a7b0ea8c5f509c3a33dc227

Vendor Advisories for CVE-2026-64118(1)

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

Patch Availability(19)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2053.55) @ noble2026-10-01ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-10-01ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-10-01ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-10-01ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-10-01ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-10-01ubuntu
ubuntulinux-virtual-6.8 (6.8.0-139.139) @ noble2026-10-01ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-10-01ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1067.75) @ noble2026-10-01ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1067.75+fips1) @ noble2026-10-01ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1035.38) @ noble2026-10-01ubuntu
ubuntulinux-tools-gcp-edge (6.8.0-1067.75~22.04.1) @ jammy2026-10-01ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1067.75~22.04.1) @ jammy2026-10-01ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1061.64) @ noble2026-10-01ubuntu
ubuntulinux-tools-lowlatency-hwe-22.04-edge (6.8.0-139.139.1~22.04.1) @ jammy2026-10-01ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1064.67+fips1) @ noble2026-10-01ubuntu
ubuntulinux-tools-azure-edge (7.0.0-1014.14~24.04.1) @ noble2026-10-01ubuntu
ubuntulinux-tools-oracle-edge (7.0.0-1011.11~24.04.1) @ noble2026-10-01ubuntu
ubuntulinux-tools-aws-edge (6.8.0-1064.67~22.04.1) @ jammy2026-10-01ubuntu

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (54 versions)
  • every version up to 5.10.259-1: fixed in 5.10.259-1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)
  • every version up to 6.1.176-1: fixed in 6.1.176-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)
  • every version up to 6.12.94-1: fixed in 6.12.94-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (142 versions)
  • every version up to 7.0.12-1: fixed in 7.0.12-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(19)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 7× in last 7d / 53× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 282 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 182 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  2. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  3. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  4. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  5. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  6. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  7. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  8. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  9. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  10. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  11. 2026-10-01 08:10 UTCEG score recompute
  12. 2026-10-01 08:10 UTCVendor advisory
  13. 2026-10-01 08:10 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  14. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  15. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  16. 2026-09-28 07:14 UTCEG score recompute
  17. 2026-09-28 07:14 UTCVendor advisory
  18. 2026-09-28 07:14 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  19. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  20. 2026-09-24 03:35 UTCEG score recompute
  21. 2026-09-24 03:35 UTCVendor advisory
  22. 2026-09-24 03:35 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  23. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  24. 2026-09-23 01:52 UTCEG score recompute
  25. 2026-09-23 01:52 UTCVendor advisory
Show 75 more
  1. 2026-09-23 01:52 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  2. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  3. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  4. 2026-09-18 04:13 UTCEG score recompute
  5. 2026-09-18 04:13 UTCVendor advisory
  6. 2026-09-18 04:13 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  7. 2026-09-17 05:17 UTCEG score recompute
  8. 2026-09-17 05:17 UTCVendor advisory
  9. 2026-09-17 05:17 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  10. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  11. 2026-09-16 12:53 UTCEG score recompute
  12. 2026-09-16 12:53 UTCVendor advisory
  13. 2026-09-16 12:53 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  14. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  15. 2026-09-14 05:28 UTCEG score recompute
  16. 2026-09-14 05:28 UTCVendor advisory
  17. 2026-09-14 05:28 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  18. 2026-09-13 16:26 UTCVendor advisory
  19. 2026-09-13 16:26 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  20. 2026-09-13 03:23 UTCEG score recompute
  21. 2026-09-13 03:23 UTCVendor advisory
  22. 2026-09-13 03:23 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  23. 2026-09-12 10:04 UTCVendor advisory
  24. 2026-09-12 10:04 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  25. 2026-09-11 18:41 UTCEG score recompute
  26. 2026-09-11 18:41 UTCVendor advisory
  27. 2026-09-11 18:40 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  28. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  29. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  30. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  31. 2026-09-07 23:12 UTCEG score recompute
  32. 2026-09-07 23:12 UTCVendor advisory
  33. 2026-09-07 23:12 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  34. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  35. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  36. 2026-09-06 12:46 UTCVendor advisory
  37. 2026-09-06 12:46 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  38. 2026-09-05 22:52 UTCEG score recompute
  39. 2026-09-05 22:52 UTCVendor advisory
  40. 2026-09-05 22:52 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  41. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  42. 2026-09-05 09:50 UTCEG score recompute
  43. 2026-09-05 09:50 UTCVendor advisory
  44. 2026-09-05 09:50 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  45. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  46. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  47. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  48. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  49. 2026-08-31 04:52 UTCEG score recompute
  50. 2026-08-31 04:52 UTCVendor advisory
  51. 2026-08-31 04:52 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  52. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  53. 2026-08-30 15:49 UTCVendor advisory
  54. 2026-08-30 15:49 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  55. 2026-08-30 02:46 UTCEG score recompute
  56. 2026-08-30 02:46 UTCVendor advisory
  57. 2026-08-30 02:46 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  58. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  59. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  60. 2026-08-28 04:29 UTCVendor advisory
  61. 2026-08-28 04:29 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  62. 2026-08-27 15:14 UTCEG score recompute
  63. 2026-08-27 15:14 UTCVendor advisory
  64. 2026-08-27 15:14 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  65. 2026-08-27 01:50 UTCEG score recompute
  66. 2026-08-27 01:50 UTCVendor advisory
  67. 2026-08-27 01:50 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  68. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  69. 2026-08-26 12:48 UTCVendor advisory
  70. 2026-08-26 12:48 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  71. 2026-08-25 23:44 UTCEG score recompute
  72. 2026-08-25 23:44 UTCVendor advisory
  73. 2026-08-25 23:44 UTCGHSA enrichmentGHSA-wf22-p86j-w6w4 · GitHub severity HIGH · GitHub CVSS 8.4
  74. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  75. 2026-08-25 09:56 UTCVendor advisory

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-64118?
CVE-2026-64118 is a high vulnerability published on July 19, 2026. In the Linux kernel, the following vulnerability has been resolved: qed: fix double free in qedcxttables_alloc() If one of the later PF or VF CID bitmap allocations fails, qedcidmapalloc() jumps to cidmap_fail and frees the previously allocated CID bitmaps before returning an error.…
When was the CVE record for CVE-2026-64118 published?
The CVE record for CVE-2026-64118 was published on July 19, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of August 13, 2026; the record at its source may have been updated since.
Is CVE-2026-64118 actively exploited?
CVE-2026-64118 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-64118?
CVE-2026-64118 has a CVSS base score of 8.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-64118?
A fix for CVE-2026-64118 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-64118 are linked in the Vendor Advisories panel on this page.

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