CVE-2026-53374

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-19. the CNA's CVSS baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

drm/amdgpu: zero-initialize GART table on allocation

GART TLB is flushed after unmapping but not after mapping. Since amdgpu_bo_create_kernel() does not zero-initialize the buffer, when a single PTE is written the TLB may speculatively load other uninitialized entries from the same cacheline. Those garbage entries can appear valid, and a subsequent write to another PTE in the same cacheline may cause the GPU to use a stale garbage PTE from the TLB.

Fix this by calling memset_io() to zero-initialize the GART table with gart_pte_flags immediately after allocation.

Using AMDGPU_GEM_CREATE_VRAM_CLEARED, SDMA-based clear will not work since SDMA needs GART to be initialized to work.

(cherry picked from commit d9af8263b82b6eaa60c5718e0c6631c5037e4b24)

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

July 19, 2026

Last Modified

August 5, 2026

Advisory Details (6)

Auto-updated Jul 20, 2026
No patch confirmed yet.
generic

drm/amdgpu: zero-initialize GART table on allocation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e6c2e6c2e1fa066968a16aca1cb66cd1bdde7741
generic

drm/amdgpu: zero-initialize GART table on allocation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b17175d0a375b3ed5e81597dac4983fdb46e478d
generic

drm/amdgpu: zero-initialize GART table on allocation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/91fbb5e635c8fb1b49e15c19da06480089ef719f
generic

drm/amdgpu: zero-initialize GART table on allocation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8ae8b9e74bab94aab1d79f1688129bcc61c8b29a
generic

drm/amdgpu: zero-initialize GART table on allocation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/791941be5da125d9a1b228582bfdc300c05d05b3
generic

drm/amdgpu: zero-initialize GART table on allocation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/40df11255d71b02e20e70579f1b12b687e396e26

Vendor Advisories for CVE-2026-53374(6)

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

Patch Availability(23)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-09-18ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-09-18ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-18ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-09-18ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1063.71~22.04.1) @ jammy2026-09-18ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-09-18ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-09-18ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-09-18ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1015.15) @ resolute2026-09-18ubuntu
ubuntulinux-tools-aws-edge (6.8.0-1061.64~22.04.1) @ jammy2026-09-18ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-09-18ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-18ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-09-18ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-09-18ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-09-18ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-18ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-09-18ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-09-18ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-09-18ubuntu
redhatkernel-0:6.12.0-211.49.1.el10_22026-08-20redhat
redhatkernel-0:5.14.0-687.41.1.el9_82026-08-20redhat
redhatkernel-rt-0:4.18.0-553.156.1.rt7.497.el8_102026-08-17redhat
redhatkernel-0:4.18.0-553.156.1.el8_102026-08-17redhat

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 rangeFixed inDependents
linux5.10.103-1 ... 7.2~rc5-1~exp1 (496 versions)——
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 ... 6.12.90-1~bpo12+1 (23 versions)6.12.90-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (138 versions)7.0.9-1—

Additional Vendor Advisories

(19)

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 19× in last 7d / 95× 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 249 total refreshes for this CVE.

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

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2026-53374?
CVE-2026-53374 is a high vulnerability published on July 19, 2026. In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: zero-initialize GART table on allocation GART TLB is flushed after unmapping but not after mapping. Since amdgpubocreate_kernel() does not zero-initialize the buffer, when a single PTE is written the TLB may…
When was CVE-2026-53374 disclosed?
CVE-2026-53374 was first published in the National Vulnerability Database on July 19, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53374 actively exploited?
CVE-2026-53374 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 97.3% of all scored CVEs.
What is the CVSS score of CVE-2026-53374?
CVE-2026-53374 has a CVSS v4.0 base score of 8.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-53374?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53374, 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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