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| author | Jesper Juhl <jj@chaosbits.net> | 2012-03-07 20:09:34 +0100 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2012-03-07 20:09:34 +0100 |
| commit | 902c6a96a7cb9c50d2a8aed1788efad0a5d8f04c (patch) | |
| tree | 4f6f797bbaf2d5708d3e01269c1019bd9fb205b5 /drivers/md/dm-ioctl.c | |
| parent | Linux 3.3-rc6 (diff) | |
| download | linux-902c6a96a7cb9c50d2a8aed1788efad0a5d8f04c.tar.xz linux-902c6a96a7cb9c50d2a8aed1788efad0a5d8f04c.zip | |
dm ioctl: do not leak argv if target message only contains whitespace
If 'argc' is zero we jump to the 'out:' label, but this leaks the
(unused) memory that 'dm_split_args()' allocated for 'argv' if the
string being split consisted entirely of whitespace. Jump to the
'out_argv:' label instead to free up that memory.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Cc: stable@kernel.org
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/dm-ioctl.c')
| -rw-r--r-- | drivers/md/dm-ioctl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c index 31c2dc25886d..1ce84ed0b765 100644 --- a/drivers/md/dm-ioctl.c +++ b/drivers/md/dm-ioctl.c @@ -1437,7 +1437,7 @@ static int target_message(struct dm_ioctl *param, size_t param_size) if (!argc) { DMWARN("Empty message received."); - goto out; + goto out_argv; } table = dm_get_live_table(md); |