Merge branch 'akpm' (patches from Andrew)

Merge final set of updates from Andrew Morton:

 - a series to make IMA play better across kexec

 - a handful of random fixes

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  printk: fix typo in CONSOLE_LOGLEVEL_DEFAULT help text
  ratelimit: fix WARN_ON_RATELIMIT return value
  kcov: make kcov work properly with KASLR enabled
  arm64: setup: introduce kaslr_offset()
  mm: fadvise: avoid expensive remote LRU cache draining after FADV_DONTNEED
  ima: platform-independent hash value
  ima: define a canonical binary_runtime_measurements list format
  ima: support restoring multiple template formats
  ima: store the builtin/custom template definitions in a list
  ima: on soft reboot, save the measurement list
  powerpc: ima: send the kexec buffer to the next kernel
  ima: maintain memory size needed for serializing the measurement list
  ima: permit duplicate measurement list entries
  ima: on soft reboot, restore the measurement list
  powerpc: ima: get the kexec buffer passed by the previous kernel

1 files changed, 7 insertions, 1 deletions

diff --git a/kernel/kcov.c b/kernel/kcov.c
index cc2fa35ca480..85e5546cd791 100644
--- a/kernel/kcov.c
+++ b/kernel/kcov.c
@@ -19,6 +19,7 @@
 #include <linux/debugfs.h>
 #include <linux/uaccess.h>
 #include <linux/kcov.h>
+#include <asm/setup.h>
 
 /*
  * kcov descriptor (one per opened debugfs file).
@@ -73,6 +74,11 @@ void notrace __sanitizer_cov_trace_pc(void)
 	if (mode == KCOV_MODE_TRACE) {
 		unsigned long *area;
 		unsigned long pos;
+		unsigned long ip = _RET_IP_;
+
+#ifdef CONFIG_RANDOMIZE_BASE
+		ip -= kaslr_offset();
+#endif
 
 		/*
 		 * There is some code that runs in interrupts but for which
@@ -86,7 +92,7 @@ void notrace __sanitizer_cov_trace_pc(void)
 		/* The first word is number of subsequent PCs. */
 		pos = READ_ONCE(area[0]) + 1;
 		if (likely(pos < t->kcov_size)) {
-			area[pos] = _RET_IP_;
+			area[pos] = ip;
 			WRITE_ONCE(area[0], pos);
 		}
 	}