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CVE-2018-1093

Description

The ext4_valid_block_bitmap function in fs/ext4/balloc.c in the Linux kernel through 4.15.15 allows attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image because balloc.c and ialloc.c do not validate bitmap block numbers.

POC

Reference

- https://bugzilla.kernel.org/show_bug.cgi?id=199181

Github

No PoCs found on GitHub currently.