diff options
| author | Vinay Kumar Yadav <vinay.yadav@chelsio.com> | 2020-11-02 23:06:51 +0530 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2020-11-03 13:49:37 -0800 |
| commit | 8080b462b6aa856ae05ea010441a702599e579f2 (patch) | |
| tree | 8b00dfbd1ca5a68a9556ab72de96592bb49aba35 /drivers/net | |
| parent | 5fd8477ed8ca77e64b93d44a6dae4aa70c191396 (diff) | |
| download | linux-8080b462b6aa856ae05ea010441a702599e579f2.tar.bz2 | |
chelsio/chtls: fix memory leaks caused by a race
race between user context and softirq causing memleak,
consider the call sequence scenario
chtls_setkey() //user context
chtls_peer_close()
chtls_abort_req_rss()
chtls_setkey() //user context
work request skb queued in chtls_setkey() won't be freed
because resources are already cleaned for this connection,
fix it by not queuing work request while socket is closing.
v1->v2:
- fix W=1 warning.
v2->v3:
- separate it out from another memleak fix.
Fixes: cc35c88ae4db ("crypto : chtls - CPL handler definition")
Signed-off-by: Vinay Kumar Yadav <vinay.yadav@chelsio.com>
Link: https://lore.kernel.org/r/20201102173650.24754-1-vinay.yadav@chelsio.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_hw.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_hw.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_hw.c index f1820aca0d33..62c829023da5 100644 --- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_hw.c +++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_hw.c @@ -383,6 +383,9 @@ int chtls_setkey(struct chtls_sock *csk, u32 keylen, if (ret) goto out_notcb; + if (unlikely(csk_flag(sk, CSK_ABORT_SHUTDOWN))) + goto out_notcb; + set_wr_txq(skb, CPL_PRIORITY_DATA, csk->tlshws.txqid); csk->wr_credits -= DIV_ROUND_UP(len, 16); csk->wr_unacked += DIV_ROUND_UP(len, 16); |