CVE-2026-30656
Microsoft · Published May 4, 2026
7.5
CVSS v3.1
HIGHPatch availableGet patch
Description
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.. 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.
Affected Products
- azl3 fio 3.37-3 on Azure Linux 3.0
- cbl2 fio 3.30-3
- cbl2 fio 3.30-3 on CBL Mariner 2.0
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H