Information Leakage in ext4 Data=Ordered Mode

CVE-2017-7495 · LOW Severity

AV:L/AC:L/AU:N/C:P/I:N/A:N

fs/ext4/inode.c in the Linux kernel before 4.6.2, when ext4 data=ordered mode is used, mishandles a needs-flushing-before-commit list, which allows local users to obtain sensitive information from other users' files in opportunistic circumstances by waiting for a hardware reset, creating a new file, making write system calls, and reading this file.

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