CVE-2018-12232

In net/socket.c in the Linux kernel through 4.17.1, there is a race condition between fchownat and close in cases where they target the same socket file descriptor, related to the sock_close and sockfs_setattr functions. fchownat does not increment the file descriptor reference count, which allows close to set the socket to NULL during fchownat's execution, leading to a NULL pointer dereference and system crash.

References

Affected packages

Git /

Affected ranges

Database specific

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-12232.json"

unresolved_ranges

[
    {
        "events":  [
            {
                "introduced":  "0"
            },
            {
                "last_affected":  "4.17.1"
            }
        ]
    }
]