[Xen-changelog] [xen stable-4.7] libelf: section index 0 is special

[patchbot@xxxxxxx]

commit fd869a6ec721323a134ede06a3f34555b7110de2
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Wed Jan 18 10:08:22 2017 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Wed Jan 18 10:08:22 2017 +0100

    libelf: section index 0 is special
    
    When iterating over sections, table entry zero needs to be ignored.
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
    Reviewed-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
    master commit: 41fe9cabf29ea15c1f8edee49326dfde705013d3
    master date: 2016-12-07 13:52:35 +0100
---
 xen/common/libelf/libelf-dominfo.c | 2 +-
 xen/common/libelf/libelf-loader.c  | 2 +-
 xen/common/libelf/libelf-tools.c   | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/xen/common/libelf/libelf-dominfo.c 
b/xen/common/libelf/libelf-dominfo.c
index ec69449..845397c 100644
--- a/xen/common/libelf/libelf-dominfo.c
+++ b/xen/common/libelf/libelf-dominfo.c
@@ -540,7 +540,7 @@ elf_errorstatus elf_xen_parse(struct elf_binary *elf,
     if ( xen_elfnotes == 0 )
     {
         count = elf_shdr_count(elf);
-        for ( i = 0; i < count; i++ )
+        for ( i = 1; i < count; i++ )
         {
             shdr = elf_shdr_by_index(elf, i);
             if ( !elf_access_ok(elf, ELF_HANDLE_PTRVAL(shdr), 1) )
diff --git a/xen/common/libelf/libelf-loader.c 
b/xen/common/libelf/libelf-loader.c
index bc1f87b..e4b46f2 100644
--- a/xen/common/libelf/libelf-loader.c
+++ b/xen/common/libelf/libelf-loader.c
@@ -72,7 +72,7 @@ elf_errorstatus elf_init(struct elf_binary *elf, const char 
*image_input, size_t
 
     /* Find symbol table and symbol string table. */
     count = elf_shdr_count(elf);
-    for ( i = 0; i < count; i++ )
+    for ( i = 1; i < count; i++ )
     {
         shdr = elf_shdr_by_index(elf, i);
         if ( !elf_access_ok(elf, ELF_HANDLE_PTRVAL(shdr), 1) )
diff --git a/xen/common/libelf/libelf-tools.c b/xen/common/libelf/libelf-tools.c
index e73e729..0197b85 100644
--- a/xen/common/libelf/libelf-tools.c
+++ b/xen/common/libelf/libelf-tools.c
@@ -153,7 +153,7 @@ ELF_HANDLE_DECL(elf_shdr) elf_shdr_by_name(struct 
elf_binary *elf, const char *n
     const char *sname;
     unsigned i;
 
-    for ( i = 0; i < count; i++ )
+    for ( i = 1; i < count; i++ )
     {
         shdr = elf_shdr_by_index(elf, i);
         if ( !elf_access_ok(elf, ELF_HANDLE_PTRVAL(shdr), 1) )
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.7

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