AEGLIX vulnerability intelligence

CVE-2026-99233

HIGH · CVSS 7.8 · Received

Published: 2026-11-02 · Updated: 2026-11-02 · Source: NVD

Stored catalog record

Source record retrieved 2026-11-02T19:29:45.201750+00:00. Scheduled imports handle updates; this page does not assert that the provider was queried just now.

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Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: tracing/histograms: Verify event_call identity when updating synth_event refcount In event_hist_trigger_parse() and hist_unreg_all(), the histogram registration and unregistration paths look up find_synth_event() using trace_event_name(file->event_call) and adjust se->ref if a match is found. Because find_synth_event() only compares the event basename, registering or removing a histogram on a non-synthetic trace event whose basename matches a synthetic event erroneously modifies the synthetic event's reference count. If a histogram is registered on the non-synthetic event before the synthetic event is created and removed afterwards, se->ref is decremented without a matching increment, allowing the synthetic event to be freed while an active histogram action still holds a pointer to it. Introduce find_synth_event_call() to verify that &se->call matches file->event_call before adjusting se->ref.

Patch review priority

Assess exposure and vendor guidance

No higher-priority signal is available in the current stored evidence.
Fresh EPSS data is unavailable; missing values are not zero.

EPSS unavailable; no zero score is assumed.

EPSS estimates probability of exploitation in the next 30 days. It does not measure your exposure or prove exploitation. The elevated threshold is 10%; CISA KEV takes precedence. About FIRST EPSS ↗

Severity and scoring

CVSS score: 7.8 · HIGH
CVSS version: 3.1
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses: Not supplied

CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.

Known exploitation and remediation

Not listed in the CISA catalog retrieved for this record. This does not establish that exploitation has not occurred.

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Affected products and versions

NVD has not supplied affected-version configurations for this record. Check the vendor references below.

Advisories and references

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