diff options
| author | Ursula Braun <ubraun@linux.ibm.com> | 2020-09-17 22:46:02 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-09-17 18:03:56 -0700 |
| commit | ac679364b98edb4ba46a482c7ab52e2ccb82b8de (patch) | |
| tree | 7fd9fa611ca18c7bddb2ef56af8aae7c1a23c803 /net/smc | |
| parent | 86d009f1cb046d826ac0222df8b5e25967af369c (diff) | |
net/smc: fix double kfree in smc_listen_work()
If smc_listen_rmda_finish() returns with an error, the storage
addressed by 'buf' is freed a second time.
Consolidate freeing under a common label and jump to that label.
Fixes: 6bb14e48ee8d ("net/smc: dynamic allocation of CLC proposal buffer")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc')
| -rw-r--r-- | net/smc/af_smc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index f5bececfedaa..ed8f97166be9 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -1371,7 +1371,6 @@ static void smc_listen_work(struct work_struct *work) } /* finish worker */ - kfree(buf); if (!ism_supported) { rc = smc_listen_rdma_finish(new_smc, &cclc, ini.first_contact_local); @@ -1381,12 +1380,13 @@ static void smc_listen_work(struct work_struct *work) } smc_conn_save_peer_info(new_smc, &cclc); smc_listen_out_connected(new_smc); - return; + goto out_free; out_unlock: mutex_unlock(&smc_server_lgr_pending); out_decl: smc_listen_decline(new_smc, rc, ini.first_contact_local); +out_free: kfree(buf); } |