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CVE-2018-1093 The ext4_valid_block_bitmap function in fs/ext4/balloc.c in the Linux kernel through 4.15.15 allows attackers to cause a…

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.

Affected products and versions

Product Affected versions Fixed in
Linux kernel through version 4.15 Versions not published
The 4 CVEs of Linux kernel through version 4.15 →
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