{"id":"CVE-2026-72309","summary":"tracing/remotes: Fix leak in trace_remote_alloc_buffer() error path","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/remotes: Fix leak in trace_remote_alloc_buffer() error path\n\nIf page allocation fails in trace_remote_alloc_buffer(), desc-\u003enr_cpus\nis not yet incremented for the current CPU. As a consequence, on error,\nhalf-allocated rb_desc will not be freed in trace_remote_free_buffer().\n\nIncrement desc-\u003enr_cpus as soon as the first allocation for the current\nCPU has succeeded.","modified":"2026-08-18T03:31:29.998906126Z","published":"2026-08-15T05:55:25.914Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72309.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/81a7b7ddb07efdd8cf30eac6def18b9289b8de1e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ec082d0b978b5fb4c11205ccce63587ac94c74e1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72309.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72309"},{"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":"96e43537af5461b26f50904c6055046ba65d742f"},{"fixed":"81a7b7ddb07efdd8cf30eac6def18b9289b8de1e"},{"fixed":"ec082d0b978b5fb4c11205ccce63587ac94c74e1"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72309.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.1.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-72309.json"}}],"schema_version":"1.9.0"}