mirror of
https://github.com/archlinuxarm/PKGBUILDs.git
synced 2024-11-18 22:54:00 +00:00
85 lines
2.6 KiB
Diff
85 lines
2.6 KiB
Diff
[PATCH] ldconfig: file truncated while reading soname after patchelf [BZ #23964]
|
|
|
|
The way loadaddr is computed from the first LOAD segment in process_elf_file
|
|
assumes .dynstr is also contained in that segment. That is not necessarily
|
|
true, especially for libraries that have been touched by patchelf.
|
|
|
|
With this patch, the address read from the dynamic segment is checked against
|
|
all applicable segments instead of only the first one.
|
|
|
|
[BZ #23964]
|
|
* elf/readelflib.c: Fix resolving of loadaddr for .dynstr vaddr.
|
|
---
|
|
elf/readelflib.c | 33 ++++++++++++++++-----------------
|
|
1 file changed, 16 insertions(+), 17 deletions(-)
|
|
|
|
diff --git a/elf/readelflib.c b/elf/readelflib.c
|
|
index 5a1e2dc2df..bc1195c175 100644
|
|
--- a/elf/readelflib.c
|
|
+++ b/elf/readelflib.c
|
|
@@ -98,11 +98,6 @@ process_elf_file (const char *file_name, const char *lib, int *flag,
|
|
|
|
switch (segment->p_type)
|
|
{
|
|
- case PT_LOAD:
|
|
- if (loadaddr == (ElfW(Addr)) -1)
|
|
- loadaddr = segment->p_vaddr - segment->p_offset;
|
|
- break;
|
|
-
|
|
case PT_DYNAMIC:
|
|
if (dynamic_addr)
|
|
error (0, 0, _("more than one dynamic segment\n"));
|
|
@@ -176,11 +171,6 @@ process_elf_file (const char *file_name, const char *lib, int *flag,
|
|
}
|
|
|
|
}
|
|
- if (loadaddr == (ElfW(Addr)) -1)
|
|
- {
|
|
- /* Very strange. */
|
|
- loadaddr = 0;
|
|
- }
|
|
|
|
/* Now we can read the dynamic sections. */
|
|
if (dynamic_size == 0)
|
|
@@ -190,22 +180,31 @@ process_elf_file (const char *file_name, const char *lib, int *flag,
|
|
check_ptr (dynamic_segment);
|
|
|
|
/* Find the string table. */
|
|
- dynamic_strings = NULL;
|
|
for (dyn_entry = dynamic_segment; dyn_entry->d_tag != DT_NULL;
|
|
++dyn_entry)
|
|
{
|
|
check_ptr (dyn_entry);
|
|
if (dyn_entry->d_tag == DT_STRTAB)
|
|
- {
|
|
- dynamic_strings = (char *) (file_contents + dyn_entry->d_un.d_val - loadaddr);
|
|
- check_ptr (dynamic_strings);
|
|
- break;
|
|
- }
|
|
+ break;
|
|
}
|
|
|
|
- if (dynamic_strings == NULL)
|
|
+ for (i = 0, segment = elf_pheader;i < elf_header->e_phnum; i++, segment++)
|
|
+ {
|
|
+ ElfW(Addr) vaddr = dyn_entry->d_un.d_ptr;
|
|
+ if (segment->p_type == PT_LOAD &&
|
|
+ vaddr >= segment->p_vaddr &&
|
|
+ vaddr < segment->p_vaddr + segment->p_filesz)
|
|
+ {
|
|
+ loadaddr = segment->p_vaddr - segment->p_offset;
|
|
+ break;
|
|
+ }
|
|
+ }
|
|
+ if (loadaddr == (ElfW(Addr)) -1)
|
|
return 1;
|
|
|
|
+ dynamic_strings = (char *) (file_contents + dyn_entry->d_un.d_val - loadaddr);
|
|
+ check_ptr (dynamic_strings);
|
|
+
|
|
/* Now read the DT_NEEDED and DT_SONAME entries. */
|
|
for (dyn_entry = dynamic_segment; dyn_entry->d_tag != DT_NULL;
|
|
++dyn_entry)
|
|
--
|
|
2.19.2
|
|
|