Unspecified local impact via premature field destruction
Published Sep 25, 2026 · Updated Sep 25, 2026
State inconsistency in Linux allows local users to cause unspecified impact through a failed user-event removal operation. destroy_user_event() destroys or detaches an event's fields before user_event_set_call_visible() confirms removal, leaving a registered tracefs event with an empty field list when removal returns EBUSY. The condition requires an enabled user event, and published material defines no security consequence beyond the inconsistent tracefs state.
Summary
What happened
State inconsistency in Linux allows local users to cause unspecified impact through a failed user-event removal operation. destroy_user_event() destroys or detaches an event's fields before user_event_set_call_visible() confirms removal, leaving a registered tracefs event with an empty field list when removal returns EBUSY. The condition requires an enabled user event, and published material defines no security consequence beyond the inconsistent tracefs state.
The record
- CVE
- CVE-2026-97924
- Published
- Sep 25, 2026
- Updated
- Sep 25, 2026
- Vendor
- The Linux Kernel Organization
- Product
- Linux
- Classifications
- Unavailable
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 25, 2026CVE publishedPublication date reported by the CVE source.
- Sep 25, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=5.18
- Affected versionversion=7f5a08c79df35e68f1a43033450c5050f12bc155 <0892da2272ec565858aa1ec5458552d699de9142
- Affected versionversion=7f5a08c79df35e68f1a43033450c5050f12bc155 <2deb753127d7b7035e893955c5e91875e767d1f8
- Affected versionversion=7f5a08c79df35e68f1a43033450c5050f12bc155 <62d6544e86506bb0695c9594c713cba859666f2f
- Affected versionversion=7f5a08c79df35e68f1a43033450c5050f12bc155 <9c62b7e92b6086a2a0aeb71f3553dd8cf7fdcd8b
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
No sourced classifications are available.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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