diff options
| author | Denys Vlasenko <vda.linux@googlemail.com> | 2012-09-26 11:34:50 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-07 08:35:55 -0700 |
| commit | a4c1d25f27206a872ca0261bffdf3509d4ef6fc8 (patch) | |
| tree | 5ea4d8643689ef9815099fa4cb9a7a9994594939 /lib/mpi/mpi-mpow.c | |
| parent | d4663b9b9f18c0c818f9632fc4bf194521c4fe76 (diff) | |
coredump: prevent double-free on an error path in core dumper
commit f34f9d186df35e5c39163444c43b4fc6255e39c5 upstream.
In !CORE_DUMP_USE_REGSET case, if elf_note_info_init fails to allocate
memory for info->fields, it frees already allocated stuff and returns
error to its caller, fill_note_info. Which in turn returns error to its
caller, elf_core_dump. Which jumps to cleanup label and calls
free_note_info, which will happily try to free all info->fields again.
BOOM.
This is the fix.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Cc: Venu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/mpi/mpi-mpow.c')
0 files changed, 0 insertions, 0 deletions