{"id":"CVE-2022-48713","summary":"perf/x86/intel/pt: Fix crash with stop filters in single-range mode","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86/intel/pt: Fix crash with stop filters in single-range mode\n\nAdd a check for !buf-\u003esingle before calling pt_buffer_region_size in a\nplace where a missing check can cause a kernel crash.\n\nFixes a bug introduced by commit 670638477aed (\"perf/x86/intel/pt:\nOpportunistically use single range output mode\"), which added a\nsupport for PT single-range output mode. Since that commit if a PT\nstop filter range is hit while tracing, the kernel will crash because\nof a null pointer dereference in pt_handle_status due to calling\npt_buffer_region_size without a ToPA configured.\n\nThe commit which introduced single-range mode guarded almost all uses of\nthe ToPA buffer variables with checks of the buf-\u003esingle variable, but\nmissed the case where tracing was stopped by the PT hardware, which\nhappens when execution hits a configured stop filter.\n\nTested that hitting a stop filter while PT recording successfully\nrecords a trace with this patch but crashes without this patch.","modified":"2026-04-02T08:26:54.226295Z","published":"2024-06-20T11:13:07.350Z","related":["SUSE-SU-2024:2372-1","SUSE-SU-2024:2394-1","SUSE-SU-2024:2894-1","SUSE-SU-2024:2902-1","SUSE-SU-2024:2929-1","SUSE-SU-2024:2939-1","SUSE-SU-2024:2947-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48713.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1d9093457b243061a9bba23543c38726e864a643"},{"type":"WEB","url":"https://git.kernel.org/stable/c/456f041e035913fcedb275aff6f8a71dfebcd394"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e83d941fd3445f660d2f43647c580a320cc384f6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/feffb6ae2c80b9a8206450cdef90f5943baced99"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48713.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-48713"},{"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":"670638477aede0d7a355ced04b569214aa3feacd"},{"fixed":"456f041e035913fcedb275aff6f8a71dfebcd394"},{"fixed":"e83d941fd3445f660d2f43647c580a320cc384f6"},{"fixed":"feffb6ae2c80b9a8206450cdef90f5943baced99"},{"fixed":"1d9093457b243061a9bba23543c38726e864a643"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48713.json"}}],"schema_version":"1.7.5"}