Answer in brief
CVE-2026-97961 records a Unknown severity vulnerability in perf/core: Allow list_del during perf_event_overflow(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=bd27568117664b8b3e259721393df420ed51f57b <723e85fb2c3bcd237ac02cbd69502ed62ce0068c || >=bd27568117664b8b3e259721393df420ed51f57b <6d0b9ce3be221c9077653f3670d60d66bb725ee2 || >=bd27568117664b8b3e259721393df420ed51f57b <e2770c76a02452fddb52e9e05c7ed6acfef06c32 || >=bd27568117664b8b3e259721393df420ed51f57b <59e63416f5153e7d58652c616fbdcb7d5e01fff7 | 723e85fb2c3bcd237ac02cbd69502ed62ce0068c, 6d0b9ce3be221c9077653f3670d60d66bb725ee2, e2770c76a02452fddb52e9e05c7ed6acfef06c32, 59e63416f5153e7d58652c616fbdcb7d5e01fff7 |
| Linux/Linuxgeneric | 6.2 | Not reported |
Published upstream
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 25, 2026
In the Linux kernel, the following vulnerability has been resolved: perf/core: Allow list_del during perf_event_overflow() A PMU might use perf_sched_cb_inc() and perf_sched_cb_dec() interface to get the PMU call back function pmu::sched_task invoked at schedule in and schedule out. This is achieved by walking along the list anchored by sched_cb_list. The following scenario might lead to a list corruption. perf_pmu_sched_task() for_each_list_entry(..., &sched_cb_list) +--> __perf_pmu_sched_task() +--> event->pmu->sched_task()) +--> PMU_push_sample() +--> perf_event_overflow() +--> __perf_event_overflow() +--> pmu->stop() +--> perf_sched_cb_dec() remove entry from sched_cb_list while list node in use. This happens when ioctl(fd, PERF_EVENT_IOC_REFRESH, xxx) has been invoked and perf_event::event_limit hits zero. Prevent the list corruption and convert for_each_list_entry() to for_each_list_entry_safe().
Quoted source text, attributed separately from HOL analysis.