From: Wei Fang <wei.fang@nxp.com>
To: claudiu.manoil@nxp.com, vladimir.oltean@nxp.com,
xiaoning.wang@nxp.com, andrew+netdev@lunn.ch,
davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
pabeni@redhat.com
Cc: imx@lists.linux.dev, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, catalin.horghidan@nxp.com
Subject: [PATCH net 0/6] net: enetc: SR-IOV robustness and security fixes
Date: Wed, 13 May 2026 18:30:15 +0800 [thread overview]
Message-ID: <20260513103021.2190593-1-wei.fang@nxp.com> (raw)
This series hardens the ENETC PF driver's SR-IOV implementation by
fixing multiple security and stability issues in the VF-to-PF mailbox
communication path, identified through code review.
Issues addressed:
- Missing input validation for VF requests (security)
- Race conditions in VF state management (stability)
- Initialization ordering bugs (reliability)
- Resource cleanup issues (memory safety)
- Missing ratelimiting in error paths (DoS prevention)
All issues are theoretical (found through static analysis) but represent
real vulnerabilities exploitable by malicious guests or buggy VF drivers.
Wei Fang (6):
net: enetc: validate VF primary MAC address before configuration
net: enetc: fix race condition in VF MAC address configuration
net: enetc: fix use-after-free in mailbox cleanup on interrupt race
net: enetc: avoid VF->PF mailbox timeout during SR-IOV teardown
net: enetc: fix initialization order to prevent use of uninitialized
resources
net: enetc: add ratelimiting to VF mailbox error messages
.../net/ethernet/freescale/enetc/enetc_msg.c | 34 +++++++++----------
.../net/ethernet/freescale/enetc/enetc_pf.c | 28 ++++++++++++---
.../net/ethernet/freescale/enetc/enetc_pf.h | 1 +
3 files changed, 40 insertions(+), 23 deletions(-)
--
2.34.1
next reply other threads:[~2026-05-13 10:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-13 10:30 Wei Fang [this message]
2026-05-13 10:30 ` [PATCH net 1/6] net: enetc: validate VF primary MAC address before configuration Wei Fang
2026-05-13 10:30 ` [PATCH net 2/6] net: enetc: fix race condition in VF MAC address configuration Wei Fang
2026-05-13 10:30 ` [PATCH net 3/6] net: enetc: fix use-after-free in mailbox cleanup on interrupt race Wei Fang
2026-05-13 10:30 ` [PATCH net 4/6] net: enetc: avoid VF->PF mailbox timeout during SR-IOV teardown Wei Fang
2026-05-13 10:30 ` [PATCH net 5/6] net: enetc: fix initialization order to prevent use of uninitialized resources Wei Fang
2026-05-13 10:30 ` [PATCH net 6/6] net: enetc: add ratelimiting to VF mailbox error messages Wei Fang
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