Security Advisory

CVE-2018-12232

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2018-06-12 12:00:00

Last updated 2024-08-05 08:30:59

Assigner mitre

CVSS score not scored

State PUBLISHED

Description

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.

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