Riskcovery

CVE-2026-97924

tracing/user_events: Don't destroy fields when event removal fails

State
Published
Severity
Not scored
Published
Sep 25, 2026
Updated
Oct 30, 2026
Reserved
Sep 25, 2026

Read the record on cve.org

Description

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

tracing/user_events: Don't destroy fields when event removal fails

destroy_user_event() destroys the event's fields before attempting to remove the trace event call. If user_event_set_call_visible() fails, e.g. because the event is still enabled and trace_remove_event_call() returns -EBUSY, the event is left registered with an irreversibly destroyed field list. Any subsequent interaction with the event then operates on an empty field list while it is still fully visible in tracefs.

Move the field destruction after the call removal, and splice the field list back onto the event when the removal fails so the event remains in a consistent state.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 7f5a08c79df35e68f1a43033450c5050f12bc155 to before c8efcb80f0b4d253482f9117db29bb92b4197d52Affected
  • 7f5a08c79df35e68f1a43033450c5050f12bc155 to before a3d9b8b7c8f3627976fe758c77ffd3da260824d7Affected
  • 7f5a08c79df35e68f1a43033450c5050f12bc155 to before 9c62b7e92b6086a2a0aeb71f3553dd8cf7fdcd8bAffected
  • 7f5a08c79df35e68f1a43033450c5050f12bc155 to before 0892da2272ec565858aa1ec5458552d699de9142Affected
  • 7f5a08c79df35e68f1a43033450c5050f12bc155 to before 62d6544e86506bb0695c9594c713cba859666f2fAffected
  • 7f5a08c79df35e68f1a43033450c5050f12bc155 to before 2deb753127d7b7035e893955c5e91875e767d1f8Affected
LinuxLinux
  • 5.18Affected
  • before 5.18Not affected
  • 6.1.191 through 6.1.*Not affected
  • 6.6.158 through 6.6.*Not affected
  • 6.12.111 through 6.12.*Not affected
  • 6.18.53 through 6.18.*Not affected
  • 7.2.7 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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