The shm_get_stat function in ipc/shm.c in the shm subsystem in the
Linux kernel before 18.104.22.168, when CONFIG_SHMEM is disabled,
misinterprets the data type of an inode, which allows local users to
cause a denial of service (system hang) via an SHM_INFO shmctl call,
as demonstrated by running the ipcs program.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[git-commits-head] 20090205 shm: fix shmctl(SHM_INFO) lockup with !CONFIG_SHMEM
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