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GNU C Library master sources branch master updated. glibc-2.27.9000-656-g4591b7d
- From: hjl at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 27 Jul 2018 20:24:25 -0000
- Subject: GNU C Library master sources branch master updated. glibc-2.27.9000-656-g4591b7d
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- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=4591b7db23bf5f58f6dbd81a5d9f926bf765cd09
commit 4591b7db23bf5f58f6dbd81a5d9f926bf765cd09
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Jul 27 13:20:51 2018 -0700
x86/CET: Don't parse beyond the note end
Simply check if "ptr < ptr_end" since "ptr" is always incremented by 8.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* sysdeps/x86/dl-prop.h (_dl_process_cet_property_note): Don't
parse beyond the note end.
diff --git a/ChangeLog b/ChangeLog
index 50fc501..15b1122 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2018-07-27 H.J. Lu <hongjiu.lu@intel.com>
+
+ * sysdeps/x86/dl-prop.h (_dl_process_cet_property_note): Don't
+ parse beyond the note end.
+
2018-07-27 Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sysdeps/unix/sysv/linux/tst-ofdlocks.c: Return unsupported if
diff --git a/sysdeps/x86/dl-prop.h b/sysdeps/x86/dl-prop.h
index d56e20a..35d3f16 100644
--- a/sysdeps/x86/dl-prop.h
+++ b/sysdeps/x86/dl-prop.h
@@ -73,7 +73,7 @@ _dl_process_cet_property_note (struct link_map *l,
unsigned char *ptr = (unsigned char *) (note + 1) + 4;
unsigned char *ptr_end = ptr + note->n_descsz;
- while (1)
+ while (ptr < ptr_end)
{
unsigned int type = *(unsigned int *) ptr;
unsigned int datasz = *(unsigned int *) (ptr + 4);
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 5 +++++
sysdeps/x86/dl-prop.h | 2 +-
2 files changed, 6 insertions(+), 1 deletions(-)
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