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7.5
Fio Crashes When Parsing Malformed Job Files with fdp_pli Option
CVE-2026-30656
Summary
A flaw in fio 3.41 causes it to crash when processing certain job files. This means fio might stop working unexpectedly, making it difficult to run I/O tests. Update to a fixed version of fio to prevent this issue.
Original title
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...
Original 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.
Vulnerability type
CWE-476
NULL Pointer Dereference
Published: 16 Apr 2026 · Updated: 16 Apr 2026 · First seen: 16 Apr 2026