{"id":"CVE-2023-53656","summary":"drivers/perf: hisi: Don't migrate perf to the CPU going to teardown","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers/perf: hisi: Don't migrate perf to the CPU going to teardown\n\nThe driver needs to migrate the perf context if the current using CPU going\nto teardown. By the time calling the cpuhp::teardown() callback the\ncpu_online_mask() hasn't updated yet and still includes the CPU going to\nteardown. In current driver's implementation we may migrate the context\nto the teardown CPU and leads to the below calltrace:\n\n...\n[  368.104662][  T932] task:cpuhp/0         state:D stack:    0 pid:   15 ppid:     2 flags:0x00000008\n[  368.113699][  T932] Call trace:\n[  368.116834][  T932]  __switch_to+0x7c/0xbc\n[  368.120924][  T932]  __schedule+0x338/0x6f0\n[  368.125098][  T932]  schedule+0x50/0xe0\n[  368.128926][  T932]  schedule_preempt_disabled+0x18/0x24\n[  368.134229][  T932]  __mutex_lock.constprop.0+0x1d4/0x5dc\n[  368.139617][  T932]  __mutex_lock_slowpath+0x1c/0x30\n[  368.144573][  T932]  mutex_lock+0x50/0x60\n[  368.148579][  T932]  perf_pmu_migrate_context+0x84/0x2b0\n[  368.153884][  T932]  hisi_pcie_pmu_offline_cpu+0x90/0xe0 [hisi_pcie_pmu]\n[  368.160579][  T932]  cpuhp_invoke_callback+0x2a0/0x650\n[  368.165707][  T932]  cpuhp_thread_fun+0xe4/0x190\n[  368.170316][  T932]  smpboot_thread_fn+0x15c/0x1a0\n[  368.175099][  T932]  kthread+0x108/0x13c\n[  368.179012][  T932]  ret_from_fork+0x10/0x18\n...\n\nUse function cpumask_any_but() to find one correct active cpu to fixes\nthis issue.","modified":"2026-04-02T09:44:41.941052Z","published":"2025-10-07T15:21:17.572Z","related":["SUSE-SU-2025:21040-1","SUSE-SU-2025:21052-1","SUSE-SU-2025:21056-1","SUSE-SU-2025:21064-1","SUSE-SU-2025:4057-1","SUSE-SU-2025:4128-1","SUSE-SU-2025:4132-1","SUSE-SU-2025:4140-1","SUSE-SU-2025:4141-1","SUSE-SU-2025:4301-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53656.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/7a6a9f1c5a0a875a421db798d4b2ee022dc1ee1a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b64569897d86b611befbb895d815280fea94e1ed"},{"type":"WEB","url":"https://git.kernel.org/stable/c/be9c8c9c84b6d25a7b7d39954030aba6f759feb6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f564e543a43d0f1cabac791672c8a6fc78ce12d0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53656.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53656"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"8404b0fbc7fbd42e5c5d28cdedd450e70829c77a"},{"fixed":"be9c8c9c84b6d25a7b7d39954030aba6f759feb6"},{"fixed":"f564e543a43d0f1cabac791672c8a6fc78ce12d0"},{"fixed":"b64569897d86b611befbb895d815280fea94e1ed"},{"fixed":"7a6a9f1c5a0a875a421db798d4b2ee022dc1ee1a"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53656.json"}}],"schema_version":"1.7.5"}