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Kees Cook
59cf0a9339
This uses ERR_CAST() instead of an open-coded cast, as it is casting
across structure pointers, which upsets __randomize_layout:
ipc/shm.c: In function `shm_lock':
ipc/shm.c:209:9: note: randstruct: casting between randomized structure pointer types (ssa): `struct shmid_kernel' and `struct kern_ipc_perm'
return (void *)ipcp;
^~~~~~~~~~~~
Link: http://lkml.kernel.org/r/20180919180722.GA15073@beast
Fixes: 82061c57ce ("ipc: drop ipc_lock()")
Signed-off-by: Kees Cook <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: Manfred Spraul <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>