Slab-Out-of-Bounds Write Access in Linux Kernel 5.0.21 when Mounting Crafted f2fs Filesystem Image

Slab-Out-of-Bounds Write Access in Linux Kernel 5.0.21 when Mounting Crafted f2fs Filesystem Image

CVE-2019-19814 · HIGH Severity

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

In the Linux kernel 5.0.21, mounting a crafted f2fs filesystem image can cause __remove_dirty_segment slab-out-of-bounds write access because an array is bounded by the number of dirty types (8) but the array index can exceed this.

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