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CVE-2019-19449

Description

In the Linux kernel 5.0.21, mounting a crafted f2fs filesystem image can lead to slab-out-of-bounds read access in f2fs_build_segment_manager in fs/f2fs/segment.c, related to init_min_max_mtime in fs/f2fs/segment.c (because the second argument to get_seg_entry is not validated).

POC

Reference

- https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19449

Github

- https://github.com/bygregonline/devsec-fastapi-report

- https://github.com/robertsirc/sle-bci-demo

- https://github.com/shakyaraj9569/Documentation