CVE-2026-53180

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-06-25. the CNA's CVSS baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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

timers/migration: Fix livelock in tmigr_handle_remote_up()

tmigr_handle_remote_cpu() skips timer_expire_remote() when cpu == smp_processor_id(), assuming the local softirq path already handled this CPU's timers.

This assumption is wrong because jiffies can advance after the handling of the CPU's global timers in run_timer_base(BASE_GLOBAL) and before tmigr_handle_remote() evaluates the expiry times.

As a consequence a timer which expires after the CPU local timer wheel advanced and becomes expired in the remote handling is ignored and the callback is never invoked and removed from the timer wheel.

What's worse is that fetch_next_timer_interrupt_remote() keeps reporting it as expired, and the event is re-queued with expires == now on each iteration. The goto-again loop spins indefinitely.

Fix this by calling timer_expire_remote() unconditionally. That's minimal overhead for the common case as __run_timer_base() returns immediately if there is nothing to expire in the local wheel.

[ tglx: Amend change log and add a comment ]

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
38
EG Risk 38/100

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
Severity75% × 45%
Exploitation0% × 40%
Automatability30% × 15%
EPSS PROB
0.3%
EPSS %ILE
25th
KEV
Not listed

Published

June 25, 2026

Last Modified

August 5, 2026

Advisory Details (4)

Auto-updated Jun 28, 2026
Patch available.
generic

timers/migration: Fix livelock in tmigr_handle_remote_up() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d486b4934a8e504376b85cdb3766f306d57aff5b
generic

timers/migration: Fix livelock in tmigr_handle_remote_up() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d338e61ea94052a786aac9f58e9f0d8520afa0fd
generic

timers/migration: Fix livelock in tmigr_handle_remote_up() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1d6c2062b77be09ec15d6bf637b2e2221c4482fc
generic

timers/migration: Fix livelock in tmigr_handle_remote_up() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/07b3b83587fb3012619f4439389b64a955fc7836

Vendor Advisories for CVE-2026-53180(1)

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

Patch Availability(10)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-ibm-7.0 (7.0.0-1013.13) @ resolute2026-09-23ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2018.18) @ resolute2026-09-23ubuntu
ubuntulinux-tools-raspi-realtime-7.0 (7.0.0-1019.19) @ resolute2026-09-23ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1018.18) @ resolute2026-09-23ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1011.11) @ resolute2026-09-23ubuntu
ubuntulinux-tools-azure-edge (7.0.0-1014.14~24.04.1) @ noble2026-09-23ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-31.31) @ resolute2026-09-23ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1013.13) @ resolute2026-09-23ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-23ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1018.18~24.04.1) @ noble2026-09-23ubuntu

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

(2 across 2 ecosystems)
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 (146 versions)
  • every version up to 7.0.13-1: fixed in 7.0.13-1
—

Weakness Classification(1)

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

All Vendor Advisories

(10)

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 / 37× 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 242 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-53180?
CVE-2026-53180 is a high vulnerability published on June 25, 2026. In the Linux kernel, the following vulnerability has been resolved: timers/migration: Fix livelock in tmigrhandleremote_up() tmigrhandleremotecpu() skips timerexpire_remote() when cpu == smpprocessorid(), assuming the local softirq path already handled this CPU's timers. This assumption is wrong…
When was CVE-2026-53180 disclosed?
CVE-2026-53180 was first published on June 25, 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-2026-53180 actively exploited?
CVE-2026-53180 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (25th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-53180?
CVE-2026-53180 has a CVSS base score of 7.5 (the CNA's own assessment, by linux; NVD's own analysis pending).
How do I remediate CVE-2026-53180?
A fix for CVE-2026-53180 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-53180 are linked in the Vendor Advisories panel on this page.

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