Vulnerability 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.
References
- https://git.kernel.org/stable/c/0892da2272ec565858aa1ec5458552d699de9142
- https://git.kernel.org/stable/c/2deb753127d7b7035e893955c5e91875e767d1f8
- https://git.kernel.org/stable/c/62d6544e86506bb0695c9594c713cba859666f2f
- https://git.kernel.org/stable/c/9c62b7e92b6086a2a0aeb71f3553dd8cf7fdcd8b
- https://git.kernel.org/stable/c/a3d9b8b7c8f3627976fe758c77ffd3da260824d7
FAQ
What is CVE-2026-97924?
CVE-2026-97924 is a documented vulnerability. 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 attempt...
How severe is CVE-2026-97924?
CVSS scoring is not yet available for CVE-2026-97924. Check NVD for updates.
Is there a patch for CVE-2026-97924?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.