diff options
| author | Cody P Schafer | 2012-08-11 00:22:55 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2012-08-13 19:25:23 +0200 |
| commit | 492746546fe380da768c8496213e26aa91b9b3aa (patch) | |
| tree | b9f2ece27e3396dee92206b7cdc505af40f81372 /mm | |
| parent | perf symbols: only set vmlinux longname & mark loaded if really loaded (diff) | |
| download | kernel-qcow2-linux-492746546fe380da768c8496213e26aa91b9b3aa.tar.gz kernel-qcow2-linux-492746546fe380da768c8496213e26aa91b9b3aa.tar.xz kernel-qcow2-linux-492746546fe380da768c8496213e26aa91b9b3aa.zip | |
perf symbols: Avoid segfault in elf_strptr
If we call elf_section_by_name() with a truncated elf image (ie: the
file header indicates that the section headers are placed past the end
of the file), elf_strptr() causes a segfault within libelf.
Avoid this by checking that we can access the section string table
properly.
Should really be fixed in libelf/elfutils.
Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: David Hansen <dave@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Matt Hellsley <matthltc@us.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1344637382-22789-10-git-send-email-cody@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions