CVE-2026-99187: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: perf: Fix perf_pmu_migrate_context() leaving events behind __perf_pmu_remove() walks the group leaders of a CPU and PMU with perf_event_groups_for_cpu_pmu(), removing each one as it goes. perf_remove_from_context() takes the leader out of the groups rbtree, after which rb_next() on that node returns NULL, prematurely ending the walk. Other groups stay behind in the source context. On CPU hotplug, they are then torn down with the dying CPU. They keep running until teardown, while the PMU's interrupt and migrated events are on a new CPU, which drivers rely on never happening. Walk ctx->event_list instead and pick out the PMU's events by their pmu_ctx.

Засегнати продукти

• Linux Linux: bd27568117664b8b3e259721393df420ed51f57b преди 3caf006eb731e88cbb33fb5b7d1f2fdb23712bc7; bd27568117664b8b3e259721393df420ed51f57b преди d4002e954c612dfc7e3fb5549e4a188ea281fe35; bd27568117664b8b3e259721393df420ed51f57b преди 3eb08f09bfb364051f51316da873c3bd51a839ef; bd27568117664b8b3e259721393df420ed51f57b преди f5f0028764de322a3d04eda0d3b6389ca9847446; bd27568117664b8b3e259721393df420ed51f57b преди e76b36b4be7160eaa14b416681e548b125702395
• Linux Linux: 6.2; преди 6.2; 6.6.161 до 6.6.*; 6.12.115 до 6.12.*; 6.18.59 до 6.18.*; 7.2.13 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-99187
• https://nvd.nist.gov/vuln/detail/CVE-2026-99187
• https://git.kernel.org/stable/c/3caf006eb731e88cbb33fb5b7d1f2fdb23712bc7
• https://git.kernel.org/stable/c/d4002e954c612dfc7e3fb5549e4a188ea281fe35
• https://git.kernel.org/stable/c/3eb08f09bfb364051f51316da873c3bd51a839ef
• https://git.kernel.org/stable/c/f5f0028764de322a3d04eda0d3b6389ca9847446
• https://git.kernel.org/stable/c/e76b36b4be7160eaa14b416681e548b125702395