From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Shannon Nelson <snelson@pensando.io>,
"David S . Miller" <davem@davemloft.net>,
Sasha Levin <sashal@kernel.org>,
netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.7 45/60] ionic: update eid test for overflow
Date: Mon, 10 Aug 2020 15:10:13 -0400 [thread overview]
Message-ID: <20200810191028.3793884-45-sashal@kernel.org> (raw)
In-Reply-To: <20200810191028.3793884-1-sashal@kernel.org>
From: Shannon Nelson <snelson@pensando.io>
[ Upstream commit 3fbc9bb6ca32d12d4d32a7ae32abef67ac95f889 ]
Fix up our comparison to better handle a potential (but largely
unlikely) wrap around.
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/pensando/ionic/ionic_lif.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 337d971ffd92c..29f77faa808bb 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -709,7 +709,7 @@ static bool ionic_notifyq_service(struct ionic_cq *cq,
eid = le64_to_cpu(comp->event.eid);
/* Have we run out of new completions to process? */
- if (eid <= lif->last_eid)
+ if ((s64)(eid - lif->last_eid) <= 0)
return false;
lif->last_eid = eid;
--
2.25.1
prev parent reply other threads:[~2020-08-10 19:27 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200810191028.3793884-1-sashal@kernel.org>
2020-08-10 19:09 ` [PATCH AUTOSEL 5.7 03/60] net: mscc: ocelot: fix encoding destination ports into multicast IPv4 address Sasha Levin
2020-08-10 21:01 ` Vladimir Oltean
2020-08-11 16:42 ` Sasha Levin
2020-08-10 19:09 ` [PATCH AUTOSEL 5.7 05/60] Bluetooth: add a mutex lock to avoid UAF in do_enale_set Sasha Levin
2020-08-10 19:09 ` [PATCH AUTOSEL 5.7 29/60] net: phy: mscc: restore the base page in vsc8514/8584_config_init Sasha Levin
2020-08-10 19:10 ` [PATCH AUTOSEL 5.7 36/60] bpf: Fix fds_example SIGSEGV error Sasha Levin
2020-08-10 19:10 ` [PATCH AUTOSEL 5.7 38/60] brcmfmac: keep SDIO watchdog running when console_interval is non-zero Sasha Levin
2020-08-10 19:10 ` [PATCH AUTOSEL 5.7 39/60] brcmfmac: To fix Bss Info flag definition Bug Sasha Levin
2020-08-10 19:10 ` [PATCH AUTOSEL 5.7 40/60] brcmfmac: set state of hanger slot to FREE when flushing PSQ Sasha Levin
2020-08-10 19:10 ` [PATCH AUTOSEL 5.7 42/60] iwlegacy: Check the return value of pcie_capability_read_*() Sasha Levin
2020-08-10 19:10 ` Sasha Levin [this message]
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