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CVE-2026-99233 tracing/histograms: Verify event_call identity when updating synth_event refcount

🗓️ 02 Nov 2026 16:06:40Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 9 Views

Linux kernel tracing/histograms flaw allows use-after-free via incorrect refcount updates.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-99233
2 Nov 202616:19
–circl
cve
CVE
CVE-2026-99233
2 Nov 202616:06
–cve
debiancve
Debian CVE
CVE-2026-99233
3 Nov 202600:38
–debiancve
euvd
EUVD
EUVD-2026-115275
2 Nov 202616:06
–euvd
nvd
NVD
CVE-2026-99233
2 Nov 202616:17
–nvd
osv_debian
osv_debian
DEBIAN-CVE-2026-99233
2 Nov 202616:17
–osv_debian
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-99233: Linux: In the Linux kernel, the following vulnerability has been resolved: tracing/histograms: Verify event_call identity when…
2 Nov 202600:00
–rapid7
redhatcve
RedhatCVE
CVE-2026-99233
2 Nov 202619:33
–redhatcve
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/trace/trace_events_hist.c",
      "kernel/trace/trace_events_synth.c",
      "kernel/trace/trace_synth.h"
    ],
    "versions": [
      {
        "version": "4b147936fa509650beaf638b331573c23ba4d609",
        "lessThan": "381f543ed35c434d5b707369aa5dcd69ecf440af",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4b147936fa509650beaf638b331573c23ba4d609",
        "lessThan": "4472579bd1c83708b6fe623c870cdf728e947205",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4b147936fa509650beaf638b331573c23ba4d609",
        "lessThan": "23b4106e8b35823acc79e206c7745f55b9cfd78b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4b147936fa509650beaf638b331573c23ba4d609",
        "lessThan": "06e816bed499fe47f39f12044382cc5d064485fb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4b147936fa509650beaf638b331573c23ba4d609",
        "lessThan": "5597bb8db6855fcb97a67196d227fea359bcd81c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4b147936fa509650beaf638b331573c23ba4d609",
        "lessThan": "cf4e31d5da80fae4c9cdbe7af55b7c3ad213f0e4",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "kernel/trace/trace_events_hist.c",
      "kernel/trace/trace_events_synth.c",
      "kernel/trace/trace_synth.h"
    ],
    "versions": [
      {
        "version": "4.17",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.17",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.191",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.161",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.115",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.60",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.14",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3.1",
        "lessThanOrEqual": "7.3.*",
        "status": "unaffected",
        "versionType": "semver"
      }
    ]
  }
]

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