{"id":"AZL-98175","summary":"CVE-2026-80689 affecting package kernel 6.6.150.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/mmiotrace: Add NULL check for mmio_trace_array in logging functions\n\nmmio_trace_rw() and mmio_trace_mapping() retrieve mmio_trace_array into\ntr and pass it to __trace_mmiotrace_rw() and __trace_mmiotrace_map().\nIf these functions are invoked while mmio_trace_array is NULL (e.g. before\ninitialization or after disabled), accessing tr-\u003earray_buffer.buffer will\nresult in a NULL pointer dereference crash.\n\nFix this by adding an explicit NULL check for tr at the beginning of\n__trace_mmiotrace_rw() and __trace_mmiotrace_map().","modified":"2026-09-02T06:51:55Z","published":"2026-08-28T08:16:54Z","upstream":["CVE-2026-80689"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80689"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.6.150.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-98175.json"}}],"schema_version":"1.9.0"}