CVE-2026-97961

CVE CVE-2026-97961EUVD EUVD-2026-86815Published 2026-09-25T10:23:05.000Z

What the advisory describes

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().

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

• Linux — Linux bd27568117664b8b3e259721393df420ed51f57b <6d0b9ce3be221c9077653f3670d60d66bb725ee2; bd27568117664b8b3e259721393df420ed51f57b <59e63416f5153e7d58652c616fbdcb7d5e01fff7; bd27568117664b8b3e259721393df420ed51f57b <e2770c76a02452fddb52e9e05c7ed6acfef06c32; patch: 6.18.53; patch: 7.2.7; patch: 6.12.111; patch: 7.3-rc3; patch: 0; bd27568117664b8b3e259721393df420ed51f57b <723e85fb2c3bcd237ac02cbd69502ed62ce0068c; 6.2

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

• Linux — Linux

Patchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.