{"containers":{"cna":{"affected":[{"product":"Linux kernel through version 4.15","vendor":"n/a","versions":[{"status":"affected","version":"Linux kernel through version 4.15"}]}],"datePublic":"2018-04-01T00:00:00.000Z","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"description":"out-of-bounds 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[SECURITY] [DLA 1392-1] linux security 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