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![]() When building with the randstruct gcc plugin, the layout of the IPC
structs will be randomized, which requires any sub-structure accesses to
use container_of(). The proc display handlers were missing the needed
container_of()s since the iterator is passing in the top-level struct
kern_ipc_perm.
This would lead to crashes when running the "lsipc" program after the
system had IPC registered (e.g. after starting up Gnome):
general protection fault: 0000 [#1] PREEMPT SMP
...
RIP: 0010:shm_add_rss_swap.isra.1+0x13/0xa0
...
Call Trace:
sysvipc_shm_proc_show+0x5e/0x150
sysvipc_proc_show+0x1a/0x30
seq_read+0x2e9/0x3f0
...
Link: http://lkml.kernel.org/r/20170730205950.GA55841@beast
Fixes:
|
||
---|---|---|
.. | ||
compat.c | ||
ipc_sysctl.c | ||
Makefile | ||
mq_sysctl.c | ||
mqueue.c | ||
msg.c | ||
msgutil.c | ||
namespace.c | ||
sem.c | ||
shm.c | ||
syscall.c | ||
util.c | ||
util.h |