In the Linux kernel 4.13 through 4.16.11, ext4_read_inline_data() in fs/ext4/inline.c performs a memcpy with an untrusted length value in certain circumstances involving a crafted filesystem that stores the system.data extended attribute value in a dedicated inode.
4.15.0-1022.22~16.04.14.15.0-1018.19~16.04.24.15.0-33.36~16.04.14.15.0-33.364.15.0-1020.204.15.0-1022.234.15.0-1018.194.15.0-1020.204.15.0-1017.204.15.0-1021.23Exploitability
AV:NAC:HPR:NUI:NScope
S:UImpact
C:NI:NA:HCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H