Title:Linux kernel 安全漏洞
(CVE-2017-7374) Description:Use-after-free vulnerability in fs/crypto/ in the Linux kernel before 4.10.7 allows local users to cause a denial of service (NULL pointer dereference) or possibly gain privileges by revoking keyring keys being used for ext4, f2fs, or ubifs encryption, causing cryptographic transform objects to be freed prematurely.
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# cve-2017-7374
To trigger the vulnerability, we need a ext4 file system with encryption support and create a encrypted directory.
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