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| author | majianpeng <majianpeng@gmail.com> | 2012-05-29 09:21:51 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-09-27 16:49:54 +1000 |
| commit | 0d478e243a90a48fe4da581c7302771f0d66fb3b (patch) | |
| tree | cc62a2e9f70ba7bc2ff386bcffa3d8608cae6139 | |
| parent | b7e05d2373313dd8d0cb687479ad58a88f37d29f (diff) | |
| download | mdadm-0d478e243a90a48fe4da581c7302771f0d66fb3b.tar.gz | |
mdadm: Fix Segmentation fault.
In function write_init_super1():
If "rv = store_super1(st, di->fd)" return error and the di is the last.
Then the di = NULL && rv > 0, so exec:
if (rv)
fprintf(stderr, Name ": Failed to write metadata to%s\n",
di->devname);
will be segmentation fault.
Signed-off-by: majianpeng <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
| -rw-r--r-- | super1.c | 4 |
1 files changed, 3 insertions, 1 deletions
@@ -1096,7 +1096,7 @@ static int write_init_super1(struct supertype *st) unsigned long long dsize, array_size; unsigned long long sb_offset, headroom; - for (di = st->info; di && ! rv ; di = di->next) { + for (di = st->info; di; di = di->next) { if (di->disk.state == 1) continue; if (di->fd < 0) @@ -1242,6 +1242,8 @@ static int write_init_super1(struct supertype *st) rv = st->ss->write_bitmap(st, di->fd); close(di->fd); di->fd = -1; + if (rv) + goto error_out; } error_out: if (rv) |