{"id":"UBUNTU-CVE-2026-30656","details":"A NULL pointer dereference vulnerability exists in fio (Flexible I/O Tester) v3.41 when parsing job files containing the fdp_pli option. The callback function str_fdp_pli_cb() does not validate the input pointer and calls strdup() on a NULL value when the option is specified without an argument. This results in a segmentation fault and process crash.","modified":"2026-05-20T16:24:55.285187935Z","published":"2026-04-16T15:17:00Z","upstream":["CVE-2026-30656"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-30656"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-30656"},{"type":"REPORT","url":"https://github.com/axboe/fio/issues/2055"},{"type":"REPORT","url":"https://github.com/axboe/fio/commit/9387e61b5fcfbce1e4ed29b0cd19890a37ba1766"}],"affected":[{"package":{"name":"fio","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/fio?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.0.8-2","2.1.3-1"],"ecosystem_specific":{"binaries":[{"binary_name":"fio","binary_version":"2.1.3-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-30656.json"}},{"package":{"name":"fio","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/fio?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.11-2","2.2.10-1","2.2.10-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"fio","binary_version":"2.2.10-1ubuntu1"},{"binary_version":"2.2.10-1ubuntu1","binary_name":"gfio"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-30656.json"}},{"package":{"name":"fio","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/fio?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.16-1","3.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"fio","binary_version":"3.1-1"},{"binary_name":"gfio","binary_version":"3.1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-30656.json"}},{"package":{"name":"fio","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/fio?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.12-2","3.16-1"],"ecosystem_specific":{"binaries":[{"binary_name":"fio","binary_version":"3.16-1"},{"binary_version":"3.16-1","binary_name":"gfio"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-30656.json"}},{"package":{"name":"fio","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/fio?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.25-2","3.28-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.28-1","binary_name":"fio"},{"binary_version":"3.28-1","binary_name":"gfio"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-30656.json"}},{"package":{"name":"fio","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/fio?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.35-2","3.36-1","3.36-1build1","3.36-1build2","3.36-1ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"fio","binary_version":"3.36-1ubuntu0.1"},{"binary_version":"3.36-1ubuntu0.1","binary_name":"fio-examples"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-30656.json"}},{"package":{"name":"fio","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/fio?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.38-1","3.39-1"],"ecosystem_specific":{"binaries":[{"binary_version":"3.39-1","binary_name":"fio"},{"binary_version":"3.39-1","binary_name":"fio-examples"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-30656.json"}},{"package":{"name":"fio","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/fio?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.39-1","3.41-2"],"ecosystem_specific":{"binaries":[{"binary_name":"fio","binary_version":"3.41-2"},{"binary_name":"fio-examples","binary_version":"3.41-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-30656.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}