CVE-2022-50569

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-10-22. the CNA's CVSS baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
Trending — 5 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%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

xfrm: Update ipcomp_scratches with NULL when freed

Currently if ipcomp_alloc_scratches() fails to allocate memory ipcomp_scratches holds obsolete address. So when we try to free the percpu scratches using ipcomp_free_scratches() it tries to vfree non existent vm area. Described below:

static void * __percpu *ipcomp_alloc_scratches(void) { ... scratches = alloc_percpu(void *); if (!scratches) return NULL; ipcomp_scratches does not know about this allocation failure. Therefore holding the old obsolete address. ... }

So when we free,

static void ipcomp_free_scratches(void) { ... scratches = ipcomp_scratches; Assigning obsolete address from ipcomp_scratches

if (!scratches) return;

for_each_possible_cpu(i) vfree(*per_cpu_ptr(scratches, i)); Trying to free non existent page, causing warning: trying to vfree existent vm area. ... }

Fix this breakage by updating ipcomp_scrtches with NULL when scratches is freed

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

October 22, 2025

Last Modified

August 5, 2026

Advisory Details (9)

Auto-updated Aug 4, 2026
No patch confirmed yet.
generic

xfrm: Update ipcomp_scratches with NULL when freed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f3bdba4440d82e0da2b1bfc35d3836c8a8e00677
generic

xfrm: Update ipcomp_scratches with NULL when freed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/debca61df6bc2f65e020656c9c5b878d6b38d30f
generic

xfrm: Update ipcomp_scratches with NULL when freed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/be81c44242b20fc3bdcc73480ef8aaee56f5d0b6
generic

xfrm: Update ipcomp_scratches with NULL when freed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a39f456d62810c0efb43cead22f98d95b53e4b1a
generic

xfrm: Update ipcomp_scratches with NULL when freed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8a04d2fc700f717104bfb95b0f6694e448a4537f
generic

xfrm: Update ipcomp_scratches with NULL when freed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2c19945ce8095d065df550e7fe350cd5cc40c6e6
generic

xfrm: Update ipcomp_scratches with NULL when freed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1e8abde895b3ac6a368cbdb372e8800c49e73a28
generic

xfrm: Update ipcomp_scratches with NULL when freed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/18373ed500f7cd53e24d9b0bd0f1c09d78dba87e
generic

xfrm: Update ipcomp_scratches with NULL when freed - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/03155680191ef0f004b1d6a5714c5b8cd271ab61

Vendor Advisories for CVE-2022-50569(3)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:4.18.0-477.10.1.el8_82023-05-16redhat
redhatkernel-0:5.14.0-284.11.1.el9_22023-05-09redhat
linuxKernel @ 4.9.331—osv

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.

Data Freshness Timeline

(refreshed 19× in last 7d / 56× 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 153 total refreshes for this CVE.

  1. 2026-08-05 19:15 UTCEPSS rescore
  2. 2026-08-05 09:19 UTCEG score recompute
  3. 2026-08-05 09:19 UTCVendor advisory
  4. 2026-08-05 09:19 UTCGHSA enrichment
  5. 2026-08-04 15:07 UTCEPSS rescore
  6. 2026-08-04 10:56 UTCEG score recompute
  7. 2026-08-04 10:56 UTCVendor advisory
  8. 2026-08-04 10:56 UTCGHSA enrichment
  9. 2026-08-04 10:35 UTCEPSS rescore
  10. 2026-08-04 09:27 UTCEG score recompute▲ 7.80
  11. 2026-08-04 09:27 UTCVendor advisory
  12. 2026-08-04 09:27 UTCGHSA enrichment
  13. 2026-08-04 09:20 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  14. 2026-08-03 10:33 UTCEPSS rescore
  15. 2026-08-02 02:24 UTCEPSS rescore
  16. 2026-08-01 04:13 UTCEPSS rescore
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  20. 2026-07-28 15:34 UTCEPSS rescore
  21. 2026-07-27 09:09 UTCOSV refresh
  22. 2026-07-26 14:52 UTCEPSS rescore
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  24. 2026-07-25 14:16 UTCEPSS rescore
  25. 2026-07-24 14:15 UTCEPSS rescore
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  1. 2026-07-23 14:16 UTCEPSS rescore
  2. 2026-07-23 14:16 UTCEPSS rescore
  3. 2026-07-23 02:17 UTCEG score recompute
  4. 2026-07-22 23:04 UTCEG score recompute
  5. 2026-07-22 14:06 UTCEPSS rescore
  6. 2026-07-22 14:06 UTCEPSS rescore
  7. 2026-07-21 15:23 UTCEPSS rescore
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  9. 2026-07-20 17:05 UTCEPSS rescore
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  19. 2026-07-15 01:58 UTCEPSS rescore
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  21. 2026-07-13 22:28 UTCEPSS rescore
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  23. 2026-07-13 06:11 UTCEPSS rescore
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  25. 2026-07-12 05:44 UTCEPSS rescore
  26. 2026-07-11 08:25 UTCEPSS rescore
  27. 2026-07-11 08:25 UTCEPSS rescore
  28. 2026-07-10 03:53 UTCOSV refresh
  29. 2026-07-09 19:08 UTCEPSS rescore
  30. 2026-07-08 15:13 UTCEPSS rescore
  31. 2026-07-07 13:44 UTCEPSS rescore
  32. 2026-07-06 16:25 UTCEPSS rescore
  33. 2026-07-06 02:21 UTCEPSS rescore
  34. 2026-07-05 02:28 UTCEPSS rescore
  35. 2026-07-04 06:29 UTCEPSS rescore
  36. 2026-07-01 15:04 UTCEPSS rescore
  37. 2026-06-30 23:21 UTCEPSS rescore
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  39. 2026-06-29 14:04 UTCEPSS rescore
  40. 2026-06-28 14:06 UTCEPSS rescore
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  43. 2026-06-27 03:07 UTCEPSS rescore
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  45. 2026-06-25 13:48 UTCEPSS rescore
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  47. 2026-06-24 14:03 UTCEPSS rescore
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  49. 2026-06-23 21:31 UTCEPSS rescore
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  51. 2026-06-22 14:24 UTCEPSS rescore
  52. 2026-06-21 14:55 UTCEPSS rescore
  53. 2026-06-21 14:55 UTCEPSS rescore
  54. 2026-06-21 14:31 UTCOSV refresh
  55. 2026-06-21 01:58 UTCEPSS rescore
  56. 2026-06-21 01:58 UTCEPSS rescore
  57. 2026-06-19 19:24 UTCEPSS rescore
  58. 2026-06-19 19:24 UTCEPSS rescore
  59. 2026-06-18 17:51 UTCEPSS rescore
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  74. 2026-06-08 14:15 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2022-50569?
CVE-2022-50569 is a high vulnerability published on October 22, 2025. In the Linux kernel, the following vulnerability has been resolved: xfrm: Update ipcomp_scratches with NULL when freed Currently if ipcompallocscratches() fails to allocate memory ipcomp_scratches holds obsolete address. So when we try to free the percpu scratches using ipcompfreescratches() it…
When was CVE-2022-50569 disclosed?
CVE-2022-50569 was first published in the National Vulnerability Database on October 22, 2025, 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-2022-50569 actively exploited?
CVE-2022-50569 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 94.3% of all scored CVEs.
What is the CVSS score of CVE-2022-50569?
CVE-2022-50569 has a CVSS v4.0 base score of 7.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2022-50569?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-50569, 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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