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| author | Wenwen Wang <wenwen@cs.uga.edu> | 2019-08-13 12:18:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-10 12:32:14 +0300 |
| commit | 8762d3ea41b68bcd98a2b32daab2e32a1d746a6a (patch) | |
| tree | 122f73b749bae932d578b294546325afe850fd7e | |
| parent | 91910cc0016578a0d9c181d2bb6f7806a07dbf73 (diff) | |
| download | linux-8762d3ea41b68bcd98a2b32daab2e32a1d746a6a.tar.xz | |
cxgb4: fix a memory leak bug
[ Upstream commit c554336efa9bbc28d6ec14efbee3c7d63c61a34f ]
In blocked_fl_write(), 't' is not deallocated if bitmap_parse_user() fails,
leading to a memory leak bug. To fix this issue, free t before returning
the error.
Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c index 76540b0e082d..9e5cd18e7358 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c @@ -2777,8 +2777,10 @@ static ssize_t blocked_fl_write(struct file *filp, const char __user *ubuf, return -ENOMEM; err = bitmap_parse_user(ubuf, count, t, adap->sge.egr_sz); - if (err) + if (err) { + kvfree(t); return err; + } bitmap_copy(adap->sge.blocked_fl, t, adap->sge.egr_sz); kvfree(t); |