The patch titled
Subject: binfmt_elf: PIE: make PF_RANDOMIZE check comment more accurate
has been added to the -mm tree. Its filename is
binfmt_elf-pie-make-pf_randomize-check-comment-more-accurate.patch
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------------------------------------------------------
From: Jiri Kosina <jkosina@xxxxxxx>
Subject: binfmt_elf: PIE: make PF_RANDOMIZE check comment more accurate
The comment I originally added in a3defbe5c337db ("binfmt_elf: fix PIE
execution with randomization disabled") is not really 100% accurate --
sysctl is not the only way how PF_RANDOMIZE could be forcibly unset in
runtime.
Another option of course is direct modification of personality flags (i.e.
running through setarch wrapper).
Make the comment more explicit and accurate.
Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/binfmt_elf.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN fs/binfmt_elf.c~binfmt_elf-pie-make-pf_randomize-check-comment-more-accurate fs/binfmt_elf.c
--- a/fs/binfmt_elf.c~binfmt_elf-pie-make-pf_randomize-check-comment-more-accurate
+++ a/fs/binfmt_elf.c
@@ -820,7 +820,8 @@ static int load_elf_binary(struct linux_
* follow the loader, and is not movable. */
#ifdef CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE
/* Memory randomization might have been switched off
- * in runtime via sysctl.
+ * in runtime via sysctl or explicit setting of
+ * personality flags.
* If that is the case, retain the original non-zero
* load_bias value in order to establish proper
* non-randomized mappings.
_
Patches currently in -mm which might be from jkosina@xxxxxxx are
linux-next.patch
binfmt_elf-pie-make-pf_randomize-check-comment-more-accurate.patch
i2o-check-copy_from_user-size-parameter.patch
mwave-fix-info-leak-in-mwave_ioctl.patch
semaphore-give-an-unlikely-for-downs-timeout.patch
semaphore-boolize-semaphore_waiters-up.patch
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