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authorLinus Torvalds <torvalds@linux-foundation.org>2017-07-19 08:55:18 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-19 08:55:18 -0700
commite06fdaf40a5c021dd4a2ec797e8b724f07360070 (patch)
treed0e7ec007cd0c4125b3879f389790ed900f00ad4 /kernel/futex.c
parenta90c6ac2b5651b1f907de512c2fa648c9fa6bb6e (diff)
parent8acdf5055974e49d337d51ac7011449cfd7b7d05 (diff)
downloadlinux-e06fdaf40a5c021dd4a2ec797e8b724f07360070.tar.gz
Merge tag 'gcc-plugins-v4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull structure randomization updates from Kees Cook:
 "Now that IPC and other changes have landed, enable manual markings for
  randstruct plugin, including the task_struct.

  This is the rest of what was staged in -next for the gcc-plugins, and
  comes in three patches, largest first:

   - mark "easy" structs with __randomize_layout

   - mark task_struct with an optional anonymous struct to isolate the
     __randomize_layout section

   - mark structs to opt _out_ of automated marking (which will come
     later)

  And, FWIW, this continues to pass allmodconfig (normal and patched to
  enable gcc-plugins) builds of x86_64, i386, arm64, arm, powerpc, and
  s390 for me"

* tag 'gcc-plugins-v4.13-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  randstruct: opt-out externally exposed function pointer structs
  task_struct: Allow randomized layout
  randstruct: Mark various structs for randomization
Diffstat (limited to 'kernel/futex.c')
-rw-r--r--kernel/futex.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/futex.c b/kernel/futex.c
index c934689043b2..16dbe4c93895 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -212,7 +212,7 @@ struct futex_pi_state {
 	atomic_t refcount;
 
 	union futex_key key;
-};
+} __randomize_layout;
 
 /**
  * struct futex_q - The hashed futex queue entry, one per waiting task
@@ -246,7 +246,7 @@ struct futex_q {
 	struct rt_mutex_waiter *rt_waiter;
 	union futex_key *requeue_pi_key;
 	u32 bitset;
-};
+} __randomize_layout;
 
 static const struct futex_q futex_q_init = {
 	/* list gets initialized in queue_me()*/