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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


             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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