CVE-2026-46264

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-03. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 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:

drm/xe/pf: Fix sysfs initialization

In case of devm_add_action_or_reset() failure the provided cleanup action will be run immediately on the not yet initialized kobject. This may lead to errors like:

[ ] kobject: '(null)' (ff110001393608e0): is not initialized, yet kobject_put() is being called. [ ] WARNING: lib/kobject.c:734 at kobject_put+0xd9/0x250, CPU#0: kworker/0:0/9 [ ] RIP: 0010:kobject_put+0xdf/0x250 [ ] Call Trace: [ ] xe_sriov_pf_sysfs_init+0x21/0x100 [xe] [ ] xe_sriov_pf_init_late+0x87/0x2b0 [xe] [ ] xe_sriov_init_late+0x5f/0x2c0 [xe] [ ] xe_device_probe+0x5f2/0xc20 [xe] [ ] xe_pci_probe+0x396/0x610 [xe] [ ] local_pci_probe+0x47/0xb0

[ ] refcount_t: underflow; use-after-free. [ ] WARNING: lib/refcount.c:28 at refcount_warn_saturate+0x68/0xb0, CPU#0: kworker/0:0/9 [ ] RIP: 0010:refcount_warn_saturate+0x68/0xb0 [ ] Call Trace: [ ] kobject_put+0x174/0x250 [ ] xe_sriov_pf_sysfs_init+0x21/0x100 [xe] [ ] xe_sriov_pf_init_late+0x87/0x2b0 [xe] [ ] xe_sriov_init_late+0x5f/0x2c0 [xe] [ ] xe_device_probe+0x5f2/0xc20 [xe] [ ] xe_pci_probe+0x396/0x610 [xe] [ ] local_pci_probe+0x47/0xb0

Fix that by calling kobject_init() and kobject_add() separately and register cleanup action after the kobject is initialized.

Also make this cleanup registration a part of the create helper to fix another mistake, as in the loop we were wrongly passing parent kobject while registering cleanup action, and this resulted in some undetected leaks.

(cherry picked from commit 98b16727f07e26a5d4de84d88805ce7ffcfdd324)

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
1.6%
KEV
Not listed

Published

June 3, 2026

Last Modified

June 9, 2026

Advisory Details (2)

Auto-updated Jun 5, 2026
No patch confirmed yet.
generic

drm/xe/pf: Fix sysfs initialization - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bf7172cd25ed182f30af2cbb9f80c730dc717d8e
generic

drm/xe/pf: Fix sysfs initialization - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6ae479b1919ee9bd0560fc7af649932dd420d010

Vendor Advisories for CVE-2026-46264(1)

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

Data Freshness Timeline

(refreshed 0× in last 7d / 0× 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.

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

Frequently asked(5)

What is CVE-2026-46264?
CVE-2026-46264 is a high vulnerability published on June 3, 2026. In the Linux kernel, the following vulnerability has been resolved: drm/xe/pf: Fix sysfs initialization In case of devmaddactionorreset() failure the provided cleanup action will be run immediately on the not yet initialized kobject. This may lead to errors like: [ ] kobject: '(null)'…
When was CVE-2026-46264 disclosed?
CVE-2026-46264 was first published in the National Vulnerability Database on June 3, 2026, with the most recent update on June 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46264 actively exploited?
CVE-2026-46264 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-46264?
CVE-2026-46264 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-46264?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46264, 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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